高中英语知识讲解：Unit+2+Sailing+the+oceans+1 Unit+2 Section+Ⅰ 含答案
河流孕育着世界各地的文明，我们不能只是向她们索取，更重要的是要保护她们。
在美国举行的River Spirit Exchange活动，正在帮助中国和美国的青年们更好地了解对方，了解河流，从而一起协作，更好地保护河流。
Sister rivers build culturalbridge between US and ChinaThe Mississippi is the major river system in the United States.TheYangtze is China’s longest river.Although a world apart，the two water ways shareconservation(保护) concerns that provide a cultural bridge betweenstudents from the United States and China，as well as from other partsof the world.41 students from a dozen colleges explored a section of the Mississippi in Wisconsin and Iowa，to learn about the environment，and each other.The students，from the US，China and other countries，took part in the River Spirit Exchange program.The cross-cultural educational experience focuses on the Mississippi and China’s longest river，the Yangtze.This three day get-together featured story-telling，camping and canoeing(划独木舟)．It’s part of a larger lesson about conservation projects that can be used on both the Yangtze and Mississippi.After the group met at the Crane Foundation preserve，they headed south to an area of the Kickapoo River，where a 20-year conservation protected the natural setting of the waterway.The effort was led by the director of the Lower Wisconsin State Riverway Board.He told the group he was proud of its success.“I believe because of the Riverway Project we can make sure that our grandchildren’s grandchildren will be able to set a canoe in the waters ofthe Wisconsin River and be able to experience the same beauty that we can see today and what Native Americans saw many generations before.”But accomplishing that was not easy.He told the students setting rules for loggers(樵夫)，farmers，landowners and developers caused anger and even a few threats of violence between the two sides.Similar difficulties were met in China when people were trying to preserve the Yangtze River.Chinese student Lu Xiaojun said the Mississippi and Yangtze River were uniting these students from opposite ends of the earth.“We got to know each other during the exchange，”he said.He hoped that，by working together，they would find solutions to preserving these waterways.“I think it certainly helped people change their thinking and so they can look beyond now to the future.”Section ⅠWarming Up & Reading—Preparing1．mercy n．仁慈；宽恕；怜悯2．exploration n. 探险；探测3．overhead ad v. 在头顶上；在空中；在高处adj. 在头上的4．random adj. 任意的；随便的5．awkward adj. 难使用的；笨拙的6．reference n. 参考7．minimum adj. 最小的；最低的8．secure adj. 安全的；可靠的9．precise adj. 精确的；准确的10．simplify v t. 单一化；简单化11．shortcoming n. 缺点；短处12．reliable adj. 可靠的；可信赖的13．update v t. 更新14．tendency n. 趋向；倾向1．at the mercy of 受……支配2．work out 制定出3．compare sth.with sth. 把……与……相比较4．in relation to... 与……相关联5．make mistakes 犯错误1．How do_you_think seamen found their way before modern accurate methods of navigation were invented?你们认为现在精确的航海方法被发明之前海员们是怎么找到方法进行航海的？2．We may well wonder how seamen explored the oceans before latitude and longitude made it possible to_plot_a_ship’s_position_on_a_map．我们很可能感到奇怪，在经纬度被用来在地图上标出船只位置之前，海员是如何进行探索的。
3．This seems to_have_been the first and most useful form of exploration which carried the minimum amount of risk.这似乎已是最早的、最有用的探险方式，所冒风险也最小。
ⅠScan the text and then choose the best answer according to the text.1．A skilled seaman cannot use the________to plot a ship’s position.A．flag B．sunC．clouds D．North Star2．The use of seaweed is to________．A．judge whether the ship is close to landB．know how long the seamen left their homeC．tell the distance of the land and the shipD．make their journey meaningful3．How many things did the seamen use before latitude and longitude were plotted?A．Four. B．Five.C．Seven. D．Eight.4．We can learn from the text that there had been________method(s) to find longitude by the 17th century.A．two B．threeC．one D．no5．What’s the main idea of the passage?A．Why early seaman wanted to sail the ocean.B．There is useful information in an encyclopedia.C．Early sailing men went exploring the seas using their skills and simple instruments.D．Latitude and longitude are important to plot a ship’s position.答案：1－5.AADACⅡFill in the blanks according to the text.This reading explains 1.____________ seamen explored the oceans and what kind of 2.____________ (navigation) instruments 3.____________(use) to sailors before the seventeenth century 4.____________ they were navigating the open seas without 5.____________(see) land.The voyages of travellers before the 6.____________(seventeen) century show that they were not at 7.____________ mercy of the sea even though they did not have modern navigational aids.The seamen could use celestial bodies，wildlife，the weather or the sea to keep alongside the coastline.They could also use the compass to help find the direction that the ship needs 8.____________(go)．They could use the Bearing Circle to measure the sun’s position and tell if they were sailing on their correct rather 9.____________a random course.The astrolabe，quadrant and sextant could help give the seamen the local time and allowed them 10.____________(find) their latitude at sea.答案：1.how 2.navigational 3.were used 4.when 5.seeing 6.seventeenth7.the 8.to go9．than10.to find。
Unit;2;Sailing;the;oceans1
Unit;2;Sailing;the;oceans选修9unit 1 breaking records unit 2 sailing the oceans 1. fitadj.安康的；精力充足的;适宜的n. 适合vt. 适合；安装；使合身vi. 适合,符合exercise keeps you fit.运动能使你保持安康。
常用构造：be fit for sth.适合某事be fit to do sth.适合做某事易混辨析：fit/suitfit与suit都可作动词，意为iexcl;°适合iexcl;±。
fit多指尺寸，大小的iexcl;°适宜iexcl;±; suit多指款式、颜色、条件、身份、口味等的iexcl;°适宜iexcl;±。
this coat fits him.这件外套他穿正合身。
(指大小)the style of the clothes suits him well.这件衣服的款式很适合他。
〔指款式、颜色〕高手过招选词填空〔fit/suit〕①we all think that he is for the position.②does the new post your brother?③the climate here me very well.答案：①fit ②fit ③suits2. doomvt. 注定；判决n. 厄运；消灭常用构造：be doomed to 注定(后接名词或不定式)go to oneiexcl;macr;s doom 走向死亡fall to oneiexcl;macr;s doom 坠入死亡/灭亡meet oneiexcl;macr;s doom 死亡；灭亡oneiexcl;macr;s doom is sealed 某人在劫难逃send sb. to his doom 将某人处死the species was doomed to extinction.这一物种注定要灭亡。
高中英语 Unit 2 Sailing the oceans课件 新人教版选
Sailing the oceans
• James Cook was born in 1728 in Marton，England.His father， a Scottish migrant farm worker，allowed James to work on coal －carrying boats at eighteen.Cook spent his free time learning math and navigation.This led to his appointment as mate (大 副)．
• The Third Voyage.
• The Navy wanted Cook to determine if there was a Northwest Passage，a mythical waterway between Europe and Asia across the top of North America.Cook set out in July of 1776 and rounded the southern tip of Africa and headed east across the Indian Ocean until his navigation of the Bering Sea was stopped by the impassible Arctic ice.
• Cook’s explorations greatly increased European knowledge of the world.As a ship captain and skilled cartographer，he filled in many gaps on world maps.His contributions to eighteenth century science helped further exploration and discovery for many generations.
unit2sailingtheoceans课件1
Navigator sea nautical (航海的) instruments
find new islands or continents
Navigator is someone who finds the position and plots the course of a ship, an aircraft, a car, etc, using maps and instruments.
He (1728-1779) was the greatest Britain navigator. He enlisted in the Royal Navy in 1755.
In 1768 he was promoted and sent to the Pacific where he surveyed Tahiti, New Zealand, and Australia. On his famous 2nd expedition (1772-75) he explored Antarctica. In 1776 in his third and final voyage, he explored the West coast of North America and discovered the Hawaiian Islands.
Which ones do you think are still used today?
Sea charts are still used today.
astrolabe
sextant
The sextant is a navigational instrument for measuring the angle between the horizon and some object in the sky. First a sailor looks at the horizon through an eyepiece. At the same time he can see light from the sun or a star reflected off a small mirror on top of the instrument, onto a second mirror and into the eyepiece.
高中英语 Unit2《Sailing the oceans》Textbook课件 新人教版选修9
3 What would you do if you came across the following problems during your voyage? Read the chart below and fill in your plans of action to deal with them.
2 What problems would you anticipate for this journey?
I would anticipate very hot weather (around the equator), cold weather (around the Cape of Good Hope), very stormy seas (around the Cape), and problems with food and water (unless helped by local natives the water may be contaminated and the food scarce), etc.
Explorer
land use of compass and
landmarks find new places within an
already identified island or continent
Explorer is someone who travels into or through a place in order to learn about it.
3 Sailors used _se_a__c_u_rr_e_n_ts__o_r_ti_d_e_s_a_n_d__w_i_n_ds to increase their speed.
高中英语Unit2SailingtheoceansSectionⅠWarmingUpReading—
The cross-cultural educational experience focuses on the Mississippi and China’s longest river，the Yangtze.
been________method(s) to find longitude by the 17th century.
A．two
B．three
C．one
D．no
5．What’s the main idea of the passage? A．Why early seaman wanted to sail the ocean. B．There is useful information in an encyclopedia. C．Early sailing men went exploring the seas using their skills and simple instruments. D．Latitude and longitude are important to plot a ship’s position. 答案：1－5.AADAC
1．_____a_t____ the mercy of 2．work ___o_u_t_____ 3．compare sth.___w_i_t_h____ sth. 4．in __r_el_a_t_io_n___ to... 5．make __m_i_s_ta_k_e_s__
受……支配 制定出 把……与……相比较 与……相关联 犯错误
最新精编高中人教版选修9高中英语 unit 2 sailing the oceans词汇讲解
Unit 2 Sailing the oceansTeaching ResourcesSection 3: Words and expressions from Unit 2Sailing the oceansmercynoun (pl. -ies)1.[U] a kind or forgiving attitude towards sb that you have the power to harm or right to punish humanity:to ask / beg / plead for mercy They showed no mercy to their hostages. God have mercy on us. The troops are on a mercy mission (= a journey to help people) in the war zone.2. [C, usually sing.] (informal) an event or a situation to be grateful for, usually because it stops sth unpleasant: It’s a mercy she wasn’t seriously hurt. His death was a mercy (= because he was in great pain.at the mercy of sb/sth not able to stop sb/sth harming you because they have power or control over you:I’m not going to put myself at t he mercy of the bank. We were at the mercy of the weather. leave sb/sth to the mercy / mercies of sb/sth to leave sb/sth in a situation that may cause them to suffer or to be treated badly: privatized companies left to the mercy of market forces (humorous) I’ll leave you to the tender mercies of these ladies!throw yourself on sb’s mercy (formal) to put yourself in a situation where you must rely on sb to be kind to you and not harm or punish youlongsideprep.1. next to or at the side of sth: A police car pulled up alongside us. a lifeboat moored alongside theyacht Much of the land alongside the river is below sea level. 2. together with or at the same time as sth/sb: Traditional beliefs still flourish alongside a modern urban lifestyle.explorationnoun [C, U]1. the act of travelling through a place in order to find out about it or look for sth in it: the exploration of space oil exploration (= searching for oil in the ground)2. an examination of sth in order to find out about it: the book’s explorations of the human mindaccelerateverb1. to happen or to make sth happen faster or earlier than expected: [v] Inflation continues to accelerate. [vn] Exposure to the sun can accelerate the ageing process.2. [v] (of a vehicle or person) to start to go faster: The runners accelerated smoothly around the bend. The car accelerated to overtake me. secureadj.HAPPY / CONFIDENT1. feeling happy and confident about yourself or a particular situation: At last they were able to feel secure about the future. She finished the match, secure in the knowledge that she was through to the next round.CERTAIN / SAFE2. likely to continue or be successful for a long time; safe: a secure job / income It’s not a very secure way to make a living. The future of the company looks secure.3. ~ (against / from sth) that cannot be affected or harmed by sth: Information must be stored so thatit is secure from accidental deletion.BUILDING / DOOR / ROOM4.guarded and/or made stronger so that it is difficult for people to enter or leave:Check that all windows and doors have been made as secure as possible. a secure unit for child offenders The building is secure against intruders.FIRM5.not likely to move, fall down, etc.; stable: The aerial doesn’t look ver y secure to me. It was difficult to maintain a secure foothold on the ice. (figurative) Our relationship was now on a more secure footing.verbGET STH1. ~ sth (for sb/sth)| ~ sb sth (formal) to obtain or achieve sth, especially when this means using a lot of effort: [vn] to secure a contract / deal The team managed to secure a place in the finals. She secured2. 000 votes. The delegation has secured the promise of a ceasefire. [vn, vnn] He secured a place for himself at law school. He secured himself a place at law school.FASTEN FIRMLY2. [vn] ~ sth (to sth) to attach or fasten sth firmly: She secured the rope firmly to the back of the car. The tables on board were secured firmly to the floor.PROTECT FROM HARM3. [vn] ~ sth (against sth) to protect sth so that it is safe and difficult to attack or damage: to secure a property against intruders The windows were secured with locks and bars. (figurative) a savings plan that will secure your child’s futureA LOAN4. [vn] to legally agree to give sb property or goods that are worth the same amount as the money that you have borrowed from them, if you are unable to pay the money back: a loan secured on the house randomadj. [usually before noun] done, chosen, etc. without sb deciding in advance what is going to happen, or without any regular pattern: the random killing of innocent people a random sample / selection (= in which each thing has an equal chance of being chosen) The information is processed in a random order.nounat random without deciding in advance what is going to happen, or without any regular pattern: She opened the book at random (= not at any particular page) and started reading. The terrorists fired into the crowd at random. Names were chosen at random from a list.awkwardadj.1.making you feel embarrassed: There was an awkward silence. I felt awkward because they obviously wanted to be alone.2. difficult to deal with:Don’t ask awkward questions. You’ve put me in an awkward position. an awkward customer (= a person who is difficult to deal with) Please don’t be awkward about letting him come. It makes things awkward for everyone when you behave like that.3. not convenient, inconvenient: Have I come at an awkward time?4. difficult or dangerous because of its shape or design: This box is very awkward for one person to carry. This tool will reach into awkward corners, such as under kitchen units.5. not moving in an easy way; not comfortable: He tried to dance, but he was too clumsy and awkward. I must have slept in anawkward position—I’m aching all over.referencenounMENTIONING SB / STH1. [C, U] ~ (to sb/sth) a thing you say or write that mentions sb/sth else; the act of mentioning sb/sth: The book is full of references to growing up in India. She made no reference to her illness but only to her future plans. the President’s passing reference to (= brief mention of) the end of the war LOOKING FOR INFORMATION2.[U] the act of looking at sth for information: Keep the list of numbers near the phone for easy reference. I wrote down the name of the hotel for future reference (= because it might be useful in the future). The library contains many popular works of reference (= reference books).ASKING FOR ADVICE3. [U] ~ (to sb/sth) (formal) the act of asking sb for help or advice: The emergency nurse can treat minor injuries without reference to a doctor.NUMBER / WORD / SYMBOL4. [C] (abbr. ref.) a number, word or symbol that shows where sth is on a map, or where you can find a piece of information: The map reference is Y4.. Please quote your reference number when making an enquiry.FOR NEW JOB5.[C] a letter written by sb who knows you, giving information about your character and abilities, especially to a new employer: We will take up references after the interview.6. [C] a person who agrees to write a reference, for you, for example when you are applying for a job:My previous boss will act as a reference for me.IN BOOK7. [C] a note in a book that tells you where a particular piece of information comes from: There is a list of references at the end of each chapter.in / with reference to(formal) used to say what you are talking or writing about: With reference to your letter of July 22...verb [vn] (formal) to refer to sth; to provide a book, etc. with references: Each chapter is referenced, citing literature up to 2004.preciseadj.1. clear and accurate; exact: precise details / instructions / measurements Can you give a more precise definition of the word? I can be reasonably precise about the time of the incident.2. [only before noun] used to emphasize that sth happens at a particular time or in a particular way: We were just talking about her when, at that precise moment, she walked in. Doctors found it hard to establish the precise nature of her illness.3.taking care to be exact and accurate, especially about small details: a skilled and precise worker small, precise movements (disapproving) She’s rather prim and precise. to be (more) pr ecise used to show that you are giving more detailed and accurate information about sth you have just mentioned: The shelf is about a metre long—well, 98cm, to be precise.simplifyverb (simplifies, simplifying, simplified, simplified) [vn] to make sth easier to do or understand: The application forms have now been simplified. I hope his appointment will simplify matters. a simplified version of the story for young childrenportableadj. that is easy to carry or to move: a portable TV The equipment is lightweight, portable and easy to store. (figurative) a portable loan / pension (= that can be moved if you change banks, jobs, etc.) portable softwarenoun a small type of machine that is easy to carry, especially a computer or a television: The kids are upstairs watching the portable (= television).shortcomingnoun[usually pl.] a fault in sb’s character, a plan, a system, etc.:She made me aware of my own shortcomings. Despite a number of shortcomings, the project will still go ahead.updateverb [vn]1. to make sth more modern by adding new parts, etc.: It’s about time we updated our software.2. ~ sb (on sth)| ~ sth to give sb the most recent information about sth; to add the most recent information to sth bring up to date: I called the office to update them on the day’s developments. Our records are regularly updated.tendencynoun (pl. -ies)1. [C] ~ (for sb/sth) (to do sth)| ~ (to / towards sth) if sb/sth has a particular tendency, they are likely to behave or act in a particular way: to display artistic, etc. tendencies I have a tendency to talk too much when I’m nervous. There is a tendency for this disease to run in families. She has a strong natural tendency towards caution. This material has a tendency to shrink when washed.2. [C] ~ (for sb/sth) (to do sth)| ~ (to / towards sth) a new custom that is starting to develop: There is a growingtendency among employers to hire casual staff.3. [C+sing./pl. v.] (BrE) a group within a larger political group, whose views are more extreme than those of the rest of the group: the militant tendency reliableadj.1. that can be trusted to do sth well; that you can rely on; dependable: We are looking for someone who is reliable and hard-working. a reliable friend My car’s not as reliable as it used to be.2.that is likely to be correct or true: Our information comes from a reliable source. a reliable witness How reliable are the local weather forecasts? These tests are a reliable indicator of future performance. swoopverb [v]1. [usually +adv. / prep.] (of a bird or plane) to fly quickly and suddenly downwards, especially in order to attack sb/sth; dive: The aircraft swooped down over the buildings. A hawk swooped low over the field.2. ~ (on sb/sth) (especially of police or soldiers) to visit or attack sb/sth suddenly and without warning: Officers swooped on the vehicles as they left the ferry.noun1. an act of moving suddenly and quickly through the air in a downward direction, as a bird does dive2.~ (on sth/sb) an act of arriving somewhere or attacking sth/sb in a way that is sudden and unexpected:Large quantities of drugs were found during a police swoop on the star’s New York home.peckverb1. ~ (at sth) (of birds) to move the beak forward quickly and hit or bite sth: [v] A robin was pecking atcrumbs on the ground. Hens pecked around in the yard. [vn] A bird had pecked a hole in the sack. Vultures had pecked out the dead goat’s eyes.2. [vn] ~ sb (on sth) (informal) to kiss sb lightly and quickly: He pecked her on the cheek as he went out. She pecked his cheek.a / the pecking order (inform al, often humorous) the order of importance in relation to one another among the members of a group: New Zealand is at the top of the pecking order of rugby nations. to be first in the pecking orderpeck at sth to eat only a very small amount of a meal because you are not hungry; pick at: She sat nervously pecking at her food.expeditionnoun1. an organized journey with a particular purpose, especially to find out about a place that is not well known: to plan / lead / go on an expedition to the North Pole2. the people who go on an expedition: Three members of the Everest expedition were killed.3. (sometimes humorous) a short trip that you make when you want or need sth: a shopping expeditioncompulsoryadj. that must be done because of a law or a rule: It is compulsory for all motorcyclists to wear helmets. English is a compulsory subject at this level. compulsory education / schooling compulsory redundanciesSurvivalnoun1. [U] the state of continuing to live or exist, often despite difficulty or danger: the struggle / battle / fight for survival His only chance of survival was a heart transplant. Exporting is necessary f or oureconomic survival. Continued trade in these products is a threat to the survival of the species.2. [C] ~ (from sth) something that has continued to exist from an earlier time: The ceremony is a survival from pre-Christian times.the survival of the fittest the principle that only the people or things that are best adapted to their surroundings will continue to existincidentnoun1.[C] something that happens, especially sth unusual or unpleasant: His bad behaviour was just an isolated incident. One particular incident sticks in my mind.2. [C, U] a serious or violent event, such as a crime, an accident or an attack: There was a shooting incident near here last night. The demonstration passed off without incident.3.[C] a disagreement between two countries, often involving military forces: a border / diplomatic incidentdeparturenoun1. [C, U] ~ (from ... ) the act of leaving a place; an example of this: His sudden departure threw the office into chaos. Flights should be confirmed 4.8 hours before departure. They had received no news of him since his departure from the island.2. [C] a plane, train, etc. leaving a place at a particular time: arrivals and departures All departures are from Manchester. the departure lounge / time / gate the departures board3.[C] ~ (from sth) an action that is different from what is usual or expected: It was a radical departure from tradition. Their latest single represents a new departure for the band.depositnounMONEY1. [usually sing.] a ~ (on sth) a sum of money that is given as the first part of a larger payment: We’ve put down a 5.% deposit on the house. T hey normally ask you to pay £1.00 (as a) deposit. All deposits are non-refundable.2. [usually sing.] a sum of money that is paid by sb when they rent sth and that is returned to them if they do not lose or damage the thing they are renting: to pay a deposit They’l l probably ask you to leave a deposit.3.a sum of money that is paid into a bank account: Deposits can be made at any branch.4. (in the British political system) the amount of money that a candidate in an election to Parliament has to pay, and that is returned if he/she gets enough votes: All the other candidates lost their deposits.verb [vn]PUT DOWN1. [+adv. / prep.] to put o r lay sb/sth down in a particular place: She deposited a pile of books on my desk. (informal) I was whisked off in a taxi and deposited outside the hotel.LEAVE SUBSTANCE2. (especially of a river or a liquid) to leave a layer of sth on the surface of sth, especially gradually and over a period of time: Sand was deposited which hardened into sandstone.MONEY3. to put money into a bank account: Millions were deposited in Swiss bank accounts.reckonverb1. (informal, especially BrE) to think sth or have an opinion about sth: [v (that)] I reckon (that) I’mgoing to get that job. He’ll be famous one day. What do you reckon (= do you agree)? [v] It’s worth a lot of money, I reckon. ‘They’ll never find out.’ ‘You reckon?’ (= I think you may be wrong about that) 2. be reckoned (not used in the progressive tenses) to be generally considered to be sth: [vn to inf] Children are reckoned to be more sophisticated nowadays. [vn-n] It was generally reckoned a success. [also vn-adj] 3. [v to inf] (BrE, informal) to expect to do sth: We reckon to finish by ten. He wasn’t reckoning to pay so much.4. ~ sth (at sth) to calculate an amount, a number, etc.: [vn] I could see him reckoning the cost as I spoke. The age of the earth is reckoned at about 4.6.00 million years. [v (that)] They reckon (that) their profits are down by at least 2.0%. [vn to inf] The journey was reckoned to take about two hours.reckon on sth to expect sth to happen or to rely on sth happening: They hadn’t reckoned on a rebellion. [+ -ing] We’d reckoned on having good weather.reckon sth up / reckon up sth(especially BrE) to calculate the total amount or number of sth: He reckoned up the cost of everything in his mind.reckon with sb/sth1. [usually passive] to consider or treat sb/sth as a serious opponent, problem, etc.: They were alreadya political force to be reckoned with.2. (usually used in negative sentences) to consider sth as a possible problem that you should be prepared for; take sth into account: [+ -ing] I didn’t reckon with getting caught up in so much traffic.reckon without sb/sth (especially BrE) to not consider sb/sth as a possible problem that you should be prepared for; not take sth into account: They had reckoned without the determination of the opposition.tensionnoun1. [U, C, usually pl.] ~ (between A and B) a situation in which people do not trust each other, or feel unfriendly towards each other, and which may cause them to att ack each other: There is mounting tension along the border. international / racial / political tensions Family tensions and conflicts may lead to violence. The incident has further increased tension between the two countries.2. [C, U] ~ (between A and B) a situation in which the fact that there are different needs or interests causes difficulties: Th ere is often a tension between the aims of the company and the wishes of the employees.3. [U] a feeling of anxiety and stress that makes it impossible to relax: nervous tension We laughed and that helped ease the tension. Walking and swimming are excellent for releasing tension.a tension headac he 4.[U] the feeling of fear and excitement that is created by a writer or a film/movie director: dramatic tension As the movie progresses the tension builds.5. [U] the state of being stretched tight; the extent to which sth is stretched tight: muscular tension Adjust the string tension of your tennis racket to suit your style of playing. When knitting, try to keep the same tension throughout. Massage can relieve tension in your shoulders and back.verb [vn] (technical) to make a wire, sail, etc. tight and stretchedgradualadj.1. happening slowly over a long period; not sudden: a gradual change in the climate Recovery from the disease is very gradual.2. (of a slope) not steepforeseeverb (foresaw, foreseen ) to think sth is going to happen in the future; to know about sth before it happens; predict: [vn] We do not foresee any problems. The extent of the damage could not havebeen foreseen. [v (that)] No one could have foreseen (that) things would turn out this way. [v wh-] It is impossible to foresee how life will work out. [also vn -ing]thirstnoun1. [U, sing.] the feeling of needing or wanting a drink: He quenched his thirst with a long drink of cold water. She woke up with a raging thirst and a headache.2. [U] the state of not having enough water to drink: Thousands are dying of thirst.3. [sing.] ~ (for sth) a strong desire for sth: a thirst for knowledge tearverb (tore ,torn)DAMAGE1. to damage sth by pulling it apart or into pieces or by cutting it on sth sharp; to become damaged in this way; rip: [vn] I tore my jeans on the fence. I tore a hole in my jeans. He tore the letter in two.a torn handkerchief [vn-adj] I tore the package open. I tore open the package. [v] Careful—the fabric tears very easily.2. [vn] ~ sth in sth to make a hole in sth by force; rip: The blast tore a hole in the wall.REMOVE FROM STH / SB3. [vn + adv. / prep.] to remove sth from sth else by pulling it roughly or violently; rip: The storm nearly tore the roof off. I tore another sheet from the pad. He tore his clothes off (= took them off quickly and carelessly) and dived into the lake.4. ~ yourself / sb (from sb/sth) to pull yourself/sb away by force from sb/sth that is holding you or them: [vn] She tore herself from his grasp. [vn-adj] He tore himself free.INJURE MUSCLE5. [vn] to injure a muscle, etc. by stretching it too much: a torn ligament She tore a calf muscle playing squash.MOVE QUICKLY6. [v + adv. / prep.] to move somewhere very quickly or in an excited way: He tore off down the street.A truck tore past the gates.-TORN7.(in adjectives) very badly affected or damaged by sth:to bring peace to a strife-torn country a strike-torn industrytear sb/sth apart, to shreds, to bits, etc. to destroy or defeat sb/sth completely or criticize them or it severely: We tore the other team apart in the second half. The critics tore his last movie to shreds. tear at your heart / tear your heart out (formal) to strongly affect you in an emotional waytear your hair (out) (informal) to show that you are very angry or anxious about sth: She’s keeping very calm—anyone else would be tearing their hair out.(be in) a tearing hurry / rush (especially BrE) (to be) in a very great hurrybe torn (between A and B)to be unable to decide or choose between two people, things or feelings: I was torn between my parents and my friend.tear sb off a strip / tear a strip off sb(BrE, informal) to speak angrily to sb who has done sth wrong that’s torn it (BrE, informal) used to say that sth has happened to spoil your plans—more at heart, limb, loose adj.tear sb apart / tear apart sb to make sb feel very unhappy or worried; rip sb apart: It tears me apart to think I might have hurt her feelings. His distress tore me apart.tear sth apart / tear apart sth1. to destroy sth violently, especially by pulling it to pieces: The dogs tore the fox apart.2. to make people in a country, an organization or other place fight or argue with each other: Racial strife is tearing our country apart.3. to search a place, making it look untidy and causing damage: They tore the room apart, looking for money.tear at sth to pull or cut sth violently so that it tears: He tore at the meat with his bare hands.tear yourself away (from sth)/ tear sth away (from sth)to leave somewhere even though you would prefer to stay there; to take sth away from somewhere: Dinner’s ready, if you can tear yourself away from the TV. She was unable to tear her eyes away from him (= could not stop looking at him). tear sth down / tear down sth to pull or knock down a building, wall, etc.: They’re teari ng down these old houses to build a new office block.tear into sb/sth1. to attack sb/sth physically or with words: The wind tore into him.2. to start doing sth with a lot of energy: They tore into their food as if they were starving. The band tore into their opening number. tear sth up / tear up sth to destroy a document, etc. by tearing it into pieces; rip sth up: She tore up all the letters he had sent her. (figurative) He accused t he leader of tearing up the party’s manifesto (= of ignoring it).hardshipnoun [U, C] a situation that is difficult and unpleasant because you do not have enough money, food, clothes, etc.: economic / financial, etc. hardship People suffered many hardships during that long winter. The two men endured great hardship during their trek across Antarctica. It was no hardship to walk home on such a lovely evening.backgroundnounFAMILY / EDUCATION, etc.1.[C] the details of a person’s family, education, experience etc.: a person’s family / social / cultural / educational / class background The job would suit someone with a business background. In spite of their very different backgrounds, they immediately became friends.PAST2.[C, usually sing., U] the circumstances or past events which help explain why sth is how it is; information about these: the historical background to the war background information / knowledge The elections are taking place against a background of violence. Can you give me more background on the company?OF PICTURE / PHOTO3. [C, usually sing.] the part of a picture, photograph or view behind the main objects, people, etc.: a photograph with trees in the backgroundLESS IMPORTANT POSITION4. [sing.] a position in which people are not paying attention to sb/sth or not as much attention as they are paying to sb/sth else: He prefers to remain in the background and let his assistant talk to the press.A piano tinkled gently in the background. background music There was a lot of background noise (= that you could hear, but were not listening to).COLOUR UNDER STH5. [C, usually sing.] a colour or design on which sth is painted, drawn, etc.: The name of the company is written in red on a white background.in the background (computing) (of a computer program) not being used at the present time andappearing on the screen behind programs that are being usedroarverb1.[v] to make a very loud, deep sound:We heard a lion roar. The gun roared deafeningly. The engine roared to life (= started noisily). The wind was roaring in my ears.2. ~ (sth) (out) to shout sth very loudly: [v] The crowd roared. [vn] The fans roared (out) their approval. He roared out James’s name. [v speech] ‘Stand back,’ he roared.3. [v] ~ (with laughter) to laugh very loudly: He looked so funny, we all roared. It made them roar with laughter.4. [v + adv. / prep.] (of a vehicle or its rider / driver) to move very fast, making a lot of noise: She put her foot down and the car roared away. A group of young men on motorcycles roared past.5. [v] (of a fire) to burn brightly with a lot of flames, heat and noise: A log fire was roaring in the hearth.noun1.a loud deep sound made by an animal, especially a lion, or by sb’s voice: His speech was greeted bya roar of applause. roars of laughter 2.a loud continuous noise made by the wind or sea, or by a machine: I could barely hear above the roar of traffic. the roar of the Atlantic。
高中英语 Unit2Sailing the oceans-Textbook课件 新人教选修9.ppt
1 What is a navigator?
A navigator explores new routes across the sea.
2 What is the difference between a navigator and an explorer?
2 Why are speed and time important in working out the longitude of a ship?
Speed and time are important in finding out the longitude of a ship because the earth moves fifteen degrees westwards every hour. If you know your direction, speed and time, you can work out the approximate longitude or change in your position in relation to the stars.
use knots to find your
You knew your
speed and work out
latitude but didn't your approximate
know your longitude. longitude
use the compass and
You were blown off- the astrolabe,
A navigator explores the sea; an explorer discovers new places on land.
高中英语知识讲解：Unit+2+Sailing+the+oceans+2 Unit+2 Section+Ⅱ —Language+Points含答案
Section ⅡWarming Up & Reading—Language PointsThe voyages of travellers before the 17th century show that they were not at the mercy of the sea even though they did not have modern navigational aids.17世纪以前的航海记录显示，尽管没有现代航海技术的帮助，他们(旅行者们)也不是任凭海洋摆布的。
(1)voyage①He made a voyage to Japan.他航行至日本。
②I wish you a happy voyage.祝你航行平安。
[自我探究]voyage是名词，意为航行，(尤指)航海，航天。
单词意义区别trip指定期的较短的往返旅行journey表示去某地所花的时间和旅行的距离，尤其指较长距离的定期旅行；多指陆地旅行travel泛指从一地到另一地的“旅行，游历”(用单数形式，不加定冠词)。
指“国外的游历、游记”时常用复数形式，但前面不加many或数词修饰，它也可以用作动词tour“周游，观光，旅游；考察”，指周游若干地方，有一定的旅行路线，最后又回到出发地voyage指海上航行或太空旅行。
是可数名词③We went on a trip to the mountains.我们到山里去旅游了。
④We had a long journey ahead of us.我们前面的旅程还很长。
⑤Foreign travel never really appealed to him until he retired.他到退休后才真正对出国旅行产生了兴趣。
⑥We went on a 10-day tour of central Africa.我们到中非游玩了10天。
⑦This is a voyage of exploration.这是一次探索之旅。
高中英语 Unit2《Sailing the oceans》教案(1) 新人教版选修9
英语：Unit2《Sailing the oceans》教案（1）（新人教版选修9）分课时教案The First Period SpeakingTeaching Aims:a. Key words and expressionsnavigate, navigator, navigation, navigational; explore, explorer, exploration b. Talk about sailing the oceans.Teaching Methods:Discussion to arouse the students’ interest in sailing and exploring the oceans. Individual, pair or group work to make every student work in class.Teaching Aids:The multimedia; a tape recorder; the blackboardTeaching Procedures:Step1 GreetingsGreet the whole class as usual.Step2 RevisionCheck the homework exercises.Step 3 PresentationPresent the students a map of the world and tell them “Today we are going to learn a new unit “Sailing the oceans”. Then ask them to turn to page 11 and give them a few minutes to have a discussion.Step 4 DiscussionIn pairs discuss the questions on page11.This discussion is intended for students to explore the difference between a navigator and an explorer. This difference is important to establish because it encourages students to appreciate shades of meaning in the definitions f words and also because it establishes the idea of categories.After a few minutes, ask some pairs to speak out their result of the discussion. Then sum up and check the answers.A navigator explores new routes across the sea.An explorer discovers new places on land.A navigator is somebody who finds the position and plots the course of a ship, an aircraft, a car, etc, using maps and instruments. An explorer is somebody who travels into or through a place in order to learn about it. Very often navigators are also explorers.In history there are four famous voyage explorers in the world, including Zheng He in China, James Cook in England, Christopher Columbus in Spain and Abel Tasman in Holland.In this unit we’ll talk about Zheng He, James Cook and some other explorers like Marco Polo and Captain Bligh.Step 5 Pre-speakingAsk the students if they want to know some famous navigators and explorers. Then present them some pictures and some related information about them.About Zheng He.About Marco PoloAbout James CookAbout Ferdinand MagellanStep 6 SpeakingAfter showing the students the pictures and their background information, ask the students to think about the question: How do you think seamen found their way before modern accurate methods of navigation were invented? If time is limited, this can be left as their homework.Step 7 Homework1. Read the new words.2. Preview Reading SAILING THE OCEANS on page 12.The Second Period ReadingTeaching Aims:a. Learn and master the key words and expressionsvoyage mercy minimum nowhere pole overhead offshore accelerate outward longitude latitude precise simplify portable shortcoming updated tendency reliableat the mercy of, even though, work out, be used to, in relation to, aim to , …b. Train the students’ reading ability. Let the students have some knowledge of early navigational methods. Explain how seamen explored the oceans and what kind of navigational instruments were used to sailors before the 17th century when they were navigating the open seas without seeing the land.Teaching Difficult Points:How to help the students understand the reading passage better.How to im prove the students’ reading ability.Teaching Methods:Scanning the text to get the general idea of it.Carefully reading to finish the Comprehending exercises on page 14.Discussion after reading to make the students understand the text better. Teaching Aids:The multimedia; a tape recorder; the blackboardTeaching procedures & waysStep1 GreetingsGreet the whole class as usual.Step2 RevisionCheck the homework exercises.Step3 Pre-readingShow the students some pictures to see if they can identify the early navigational instruments seamen used and explain how they used.Step 4 DiscussionDiscuss the questions on page11.Step 5 Listening and comprehendingAfter listening to the contents of the text do the comprehending exercises on page 14&15.Step 6 ExplanationAfter comprehending, it is a good time to deal with the new words and language points in this part, esp. the following:voyage mercy minimum nowhere pole overhead offshore accelerate outward longitude latitude precise simplify portable shortcoming updated tendency reliableat the mercy of, even though, work out, be used to, in relation to, aim to , Step7 DiscussionLet’s the students have a discussion by working in pairs or in groups.Topic: Imagine you are on a boat with twenty-nine other people. You have a small box for your personal things but it can only hole ten items. What would you need for a week’s journey across the North Sea to England?Step8 SummaryThis reading explains how seamen explored the oceans and what kind of navigational instruments were used to sailors before the seventeenth century when they were navigating the open seas without seeing the land.Step9 HomeworkFinish the exercises about using words and expression on page61.The Third Period Extensive ReadingTeaching Aims:a. Learn and master the key words and expressionsincident departure crew deposit dilemma drawback dusk routine pretty starvation extreme psychologically tension gradually foresee thirst hardshipb. Train the students’ reading ability.Teaching Difficult Points:a. How to help the students understand the reading passage better.b. How to improve the students’ reading ability.Teaching Methods:Scanning the text to get the general idea of it and do some other comprehending exercises.Discussion after reading to make the students understand the text better. Teaching Aids:The multimedia; a tape recorder; the blackboardTeaching procedures & waysStep1 GreetingsGreet the whole class as usual.Step2 RevisionCheck the homework exercises.Suggested answers to Exercise3:I have gradually accepted the routine at school now that I am in the advanced class and make my own study plan.The drawback of using that girl for the advertising was her square jaw which made her look unfriendly.Mathematics is a subject which demands precise and accurate work.In the park I saw a small boy holding the string of a kite overhead, which was rising and falling at the mercy of the wind.That explorer wanted to secure his place in history by being the first man to reach the South Pole.Step3 Readinga. Listen to the passage and then let them do some true or false questions according to the text.1. I was forced to join Captain Bligh in the small boat.2. After the crew took over the ship “Boundy”, Captain Bligh was allowed to take with him a chart , a compass and a quadrant.3. It was very difficult for us to get a correct reading from the quadrant as the boat moved constantly during the course.4. Captain Bligh used a system called “dead reckoning” and he knew there was land directly southwest of their original position.5. We completely believed Captain Bligh when he talked hopefully about what we would do when we got back to England.6. Captain Bligh was as weak as the rest of us but he was determined not to give up.7. Captain Bligh kept us busy and tried to take our minds off our stomach and thirst all the way.8. We finally escaped the jaws of death and arrived in Timor over fifty days after being set loose in our small boat.Answers: (FFTFFTTF)b. Give the students a few minutes to read the passage again and then get the general idea of the text.This is the storey of Captain Bligh’s amazing journey across the Pacific Ocean in an open boat with his followers after another group of sailors under Fletcher Christian had taken over the ship. Later Captain Bligh and his men made for the island of Timor using a combination of navigational skill and “dead reckoning”, which is guessing the correct direction. The voyage lasted over 40 days and was one of the greatest examples of survival at sea.c. Explain some difficult sentences, phrases and words.Key phrases:1. in addition 另外There was an earthquake and, in addition, there were tsunamis.除了地震之外，还有海啸。
2019_2020学年高中英语Unit2Sailingtheoceans单元重点小结课件新人教版选修9
7. precise adj.精确的;准确的 8. simplify vt.单一化;简单化
9. shortcoming n.缺点;短处 10.update vt.更新
11. tendency n.趋向;倾向 12.reliable adj.可靠的;可信赖的
13.reform n.改革;革新 14.survival n.生ere to be seen
.
当什么也看不到的时候海鸟可以用来指路。
2.There was no secure method of measuring longitude until the 17th century when the British solved this theoretical problem . 直到17世纪英国人解决了这个理论问题后,人们才有了测量经度的 可靠方法。 3. Its shortcoming was that it still used the moving ship as one of
the fixed points of reference. 它的缺点是仍然用移动的船作为固定的参考物之一。
重点单词 重点短语 重点句型 重点语法 交际功能
复习谓语 1.So how did they navigate so well?他们航海怎么如此棒? 2.He had led three great Pacific voyages during his life. 他在其一生共率领了三次伟大的太平洋航行。 3.As you can see from the map we kept to a straight course pretty well. 从地图上你可以看出,我们的直线行驶保持得相当好。 4.The tension in the boat got worse as the supply of food and water gradually disappeared. 船上的紧张气氛加剧了因为食物和水的供应逐渐在消失。