三副航海英语习题讲解6

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三副航海英语习题讲解6

三副航海英语习题讲解6

2017航海英语复习六Key word 20: Humidity and Dew point(8)B783.Humidity is known as the amount of in the air.A. hydrogenB. moistureC. dustD. temperature【知识点】湿度【解析】湿度是指空气中水分的含量。

C750、Relative humidity is defined as __________A. the maximum vapor content the air is capable of holdingB. the minimum vapor content the air is capable of holdingC. the ratio of the actual vapor content at the current temperature to the air‟s vapor holding capabilityD. the ratio of the moisture content of the air to barometric pressure【知识点】相对湿度【解析】相对湿度定义为特定温度下空气中实际水汽含量与饱和含量之间的比值。

相关题目B751、________is the actual amount of water vapor in the air compared with the saturation amount of water vapor in the air at the same temperature and pressure, the figure is usually expressed as a percentage, with saturated air having a relative humidity of 100%.A. dew point temperatureB. relative humidityC. saturated humidityD. humidityB716、Relative humidity is the percentage of water vapor that is in the air as compared to the maximum amount it can hold at ______.A. a specific barometric pressureB. a specific temperatureC. a specific wind speedD. any timeA682. The expression “the air is saturated” means __.A. the relative humidity is 100%B. the vapor pressure is at its minimum for the prevailing temperatureC. precipitation has commencedD. cloud cover is 100%【知识点】相对湿度【解析】空气饱和是指相对湿度为100%。

航海英语听力与会话第三版(问答与口述题参考答案)

航海英语听力与会话第三版(问答与口述题参考答案)

航海英语听力与会话第三版(问答与口述题参考答案)重庆交通大学应用技术学院航海技术2班此中翻译全属虚构如有雷同纯属巧合如究责任请找有道翻译无限航区船舶二/三副问答题参考答案第一章1.What’s your date of birth?你的出生日期。

My date of birth is ---2.What’s your seaman’s book number?你的队长的国籍?My seaman’s book number is -----3.where are you from ?你从哪里来?I am from ---4.What’s your Captain’s nationality?你的队长的国籍?My Captain’s nationality is ---5.What do you think is the most inportant thing on board?你认为什么是最重要的东西登机吗?I think the most important thing on board is safety navigation.6.Which ports do you often call at?你常说的哪些港口?We often an Shanghai, Xiamen, Hong Kong.7.What is your favorite TV program? 什么是你最喜欢的电视节目怎么样?My favorite TV program is news.8.What is your favorite Wob site?什么是你最喜欢的网站吗?My favorite Web site is ----9.What is your favorite day of the week ? why?什么是一周中最喜欢的那一天吗?为什么?My favorite day of the week is Saturday, because it is holiday.10.W hat is your favorite kind of movie?你最喜欢什么类型的电影?My favorite kind of movie is action movies.11.W hat is your favorite kind of music?你最喜欢什么类型的音乐?My favorite kind of music is pop music.12.W hat is your favorite magazine?什么是你最喜欢的杂志吗?My favorite magazine is ---13.W hat is the population of your hometow?你的人口有成年时离开了家乡吗?There are 5 thousand people in my hometown.14.W hat is the population of your country?人口是多少你的国家?The population of my country is 1.3 billion.15.W hat is the best thing about your hometown?最好的事情是什么你的家乡吗?The best thing about my hometown is the weather.16.W hat is the worst thing about your hometow?最坏的事情是什麽你的成年时离开了家乡吗? The worst thing about my hometown is living price is too high.especially house price.17.W hat’s your hometow like?你的家乡怎么样?My hometown is a small village.18.D o you have many disasters in your country which are caused by weather?你有在你的国家许多灾害所造成的天气怎么样?Yes, there are typhoon, flood. earthquake19.W hat sports do you like to watch on TV?你喜欢什么体育运动,在电视上看?I like to watch football game on TV.20.W hat do you think is the most popular sport in the world?你认为什么是世界上最流行的体育运动吗?I think playing football is the most popular sport in the world.第三章1.Can you list at least three mooring lines?你能列出至少三个系泊?Yes I can. They are spring line, breast, headline, stern line.2.What should be prepared before the pilot comes on board ?之前应作什么准备飞行员来同意吗I should prepare pilot ladder, overside (search) light, heaving line, pilot card etc. before the …3.What is the maximum speed through the water that your ship can anchor withoutrisking breaking the cable?速度通过最多的水,你的船能锚定而不冒险,打破了电缆?The maximum speed through the water is 2 knots that the ship can anchor without risking breaking the cable.4.What flag should be hoisted when a vessel requires a pilot?什么应该悬挂旗帜船舶时需要一名飞行员吗?The signal flag “Golf” should be hoisted when a vessel requires a pilot.5.How can a ship get in touch with a port before her arrival?如何能取得联系船向港口在她的到来吗?She can use VHF calling, Telex etc. to get in touch with a port…6.What ship’s particulars will pilot station usually ask for?何船资料将飞行员站?通常就会向Pilot station often asks ship’s maximum draft, LOA, air draft, displacement, cargo on board. ETA. Ship’s position etc.7.What should be reported to the pilot station?可以报道什么对飞行员车站在哪里?Same as above (we should ……. To the pilot station)8.What should be confirmed from the pilot station ?We should confirm the ETA, pilot on board time and boarding position. Which side to rig pilot ladder etc.9.When the vessel enters the VTS area ,what is requested to report ?当船舶进入VTS系统的区域,什么是要求报告吗?When the vessel enters the VTS area, we have to report the ship last port of call, next port of call, ship’s position, cargo onboard, ship’s draft, air draft to the VTS center. 10.W hat does “foul anchor” mean?“ Foul of anchor” means that the anchor has its own cable twisted around it or has fouled an obstruction.11.I f you are ordered: “Stand by both engines !” how should you reply and report?如果你命令:“站在两个引擎!”你应该怎样回复,报告吗?If ……….” I should reply “stand by both engines” and report “both engines are stand by, sir”12.C an you list three famous canals in the world?你能列举三个著名的运河的世界?Yes, the 3 famous canals are Suez Canal, Panama canal and Kiel canal.13.W hen you request the receiver to remain on channel 16 in VHF communication ,what do you say?当你请求接收机停留在通道高频16沟通,你会说什么呢?When I request…, I would say “ please stand by VHF channel 16”14.H ow do you rectify the mistake in marine VHF communication?你如何纠正错误的海洋VHF沟通?If I want to rectify the mistake in VHF , I will say “ Mistake. Correction” , Plus thecorrected part of the message.15.H ow do you emphasize the important part of a messge in maritime VHFcommunication?你怎么强调重要组成部分,对海域messge VHF沟通?To emphasis the important part of the message in maritime VHF communication, we should say “Repeat”, followed by the important part of the message.16.W hat does “abandon vessel”mean?“Abandon vessel” means to evacuate crew and passengers from a vessel following a distress.17.W hat does the abbreviation ETD stand for?什么时间(代表什么?“ETD” means “ estimated time of departure”18.W hat does “dredging of an anchor”mean?什么是疏浚锚”的意思是什么?The phrase “dredging of an anchor” means moving of an anchor over the sea bottom to control the movement of the vessel.19.W hat does “underway”mean?The phrase “under way’ means the vessel which is not at anchor, or made fast to the shore, or aground.20.W hat does ‘Dragging of an anchor”mean?“什么拖的锚”的意思是什么“Dragging of anchor” means moving of an anchor over the sea bottom involuntarily because it is no longer preventing the movement of the vessel.21. What is the difference between a “radar beacon” and a “radar reflector”?之间的差别是什么"雷达指标”和“雷达反射镜”?Radar beacon can transmit signals and used for locating on the shore, but radar reflector can only reflect signals used for SAR on the liferaft..22 How many objects do you need to get a position using ‘horizontal sextant angles”?有多少物体更能你需要找个位置用“水平穿刺视角”吗?3 objects.23 Why is a magnetic compass kept on board when a gyro compass is more accurate?为什么是磁罗经保存在船上当陀螺罗盘更准确吗?Because the magnetic compass can be used for emergency and adjustments.24 What do you report when the anchor has been heaved out of the ground and is clear of it'’你们有甚麽话当锚被抛出去了地面与清晰”Anchor aweigh.25 When preparing for anchoring what must you do before releasing the bow stoppers?当准备锚定之前你做应该释放弓瓶塞吗?Supply the power, Standby the anchor ball or light, Test the windlass, Put into the gear, Release the brake26 Would you let go an anchor from the hawse pipe if the depth was 75 meters?你会让去一个锚从管道hawse如果深度为75米吗?No, we should not let go anchor from hawse pipe directly, but the anchor can be released with windlass slowly.27 Why must you consider ship’s speed and sea depth when you release the bow stoppers?你为什么必须考虑船的速度和海洋深度当你释放弓瓶塞吗?Because when the depth is different, we should take different measures for anchoring. And for ship’s safety, during the different phase, the speed should be different, too. 28 What must always be brought and placed close to the pilot ladder well before the pilot’s embarkation?有什么要带来,接近放置在领航梯飞行员的登机?The lifebuoy with the lifeline, and at night, there should be a light.29 Why is it dangerous to anchor in ice?为什么是否有危险的船锚,在冰吗?The ice can change the angle of the anchor, affect the holding power, and freeze the ship.30 What flag is hoisted when the pilot has arrived on board‘’悬挂国旗是什么当飞行员已经到了装船”Flag “H”第四章1.How many classes of dangerous goods are there according to the IMDGCode ?Can you list some?多少个班级有危险货物按照《国际海运代码?你能列举一些吗?There are 9 classes of dangerous cargoes divided according to the IMDG. For example Class 1. Means explosive material, class 2. Flammable gas, class 3. Flammable liquid.2.What kind of cargo is classified as flammable cargo ?什么样的货物被划分为易燃货?Oil is classified as flammable cargo.3.Please describe the general nature of general cargo .请描述的一般特性普通货运。

航海英语听力与会话(二、三副)分解

航海英语听力与会话(二、三副)分解
……
5
Listening and Analysis ——Dialogues
Long Dialogues
听力技巧: 1.预览选项,预测主题。 2.扑捉信息,速记要点。
常见问句:
Where is the storeroom/Master’s cabin?
What’s the electrician doing? How many tugs are needed to help them get
常见问句:
Where does this conversation take place? Which of the following statements is true? What are they talking about? What can you infer from the conversation? What are they most probably doing?
7
Unit 1 Familiarisation on board——Speaking
Q1:What’s your date of birth? A1:My date of birth is …. . Or
I was born on …. . (此处注意单复数)
<换词> date of birth 可替换为: ◆seaman’s book number ◆family members and their
abroad 国外—— aboard 船上 cloud 云—— crowd 人物
同音词辨别
近音词辨别
Listening
连读现象
虚词弱读 现象
4
Listening and Analysis ——Dialogues

航海英语三副题库

航海英语三副题库

航海英语三副题库摘要:一、引言1.航海英语的重要性2.三副职责与航海英语关系二、航海英语三副题库概述1.题库来源及特点2.题库内容分类三、题库实用技巧1.记忆方法2.解题技巧3.实践经验分享四、题库资源推荐1.线上资源2.线下书籍及教材五、结语1.航海英语三副题库的价值2.持续学习与实践的重要性正文:一、引言随着全球化的推进,航海英语在国际海上贸易中发挥着越来越重要的作用。

对于从事航海行业的专业人士来说,掌握航海英语不仅是基本技能,更是提升职业竞争力的关键。

在这个背景下,航海英语三副题库应运而生,为广大学子提供了丰富的学习资源和实践平台。

三副是船舶上的重要职务,负责船舶的安全、航行和货物运输。

因此,三副不仅需要具备扎实的航海专业知识,还要有良好的航海英语沟通能力。

航海英语三副题库正是为了帮助学员提高英语水平,更好地胜任三副岗位而设立的。

二、航海英语三副题库概述1.题库来源及特点航海英语三副题库的题目来源于国内外权威的航海英语教材、考试真题及专家编写。

这些题目具有鲜明的行业特点,实用性强,覆盖面广,能全面检验学员的航海英语水平。

2.题库内容分类航海英语三副题库分为以下几个模块:词汇与语法、阅读理解、写作、听力、口语。

每个模块都按照难度和题材进行分类,便于学员有针对性地进行学习。

三、题库实用技巧1.记忆方法针对航海英语专业词汇,可以使用联想、音标、词根词缀等方法进行记忆。

同时,制定学习计划,定期复习,巩固记忆。

2.解题技巧在做题过程中,注意把握文章主旨,抓住关键信息。

对于阅读理解题,可采用快速浏览、细读、预测等方法;听力题则需注重提高听力速度和准确性。

3.实践经验分享多参加航海英语角、模拟考试等实践活动,提高自己的实际应用能力。

与同行交流,分享学习心得,互相学习,共同进步。

四、题库资源推荐1.线上资源推荐关注国内外知名航海英语学习平台,如航海英语在线、中国航海学会等。

这些平台提供了丰富的线上课程、测试题及学习资料。

3副航海英语 -回复 -回复

3副航海英语 -回复 -回复

3副航海英语-回复-回复题目:三副航海英语的重要性与应用导语:航海英语是船员们必备的技能之一,它在航海过程中起着至关重要的作用。

本文将详细探讨三副航海英语在航海中的重要性,并以海难求救、航行中的通信以及船舶检查等方面为例,一步一步回答。

第一节:海难求救在海上航行中,不时会遇到意外情况,如火灾、漏水等。

海难求救是维护船舶安全的重要手段。

而三副航海英语能够帮助船员们与外界沟通,迅速获得援助。

1.1 用英语发出求救信号当船舶遇到危险情况时,可以通过无线电和国际海事卫星通讯系统发送求救信号。

三副航海英语的掌握能够帮助船员正确准确地描述当前状况,例如“Mayday, Mayday, Mayday. This is [船名], position [经纬度], à船舶状况及所需援助,请回答”。

1.2 与救援方进行交流在收到救援信号后,救援方会与船舶进行交流,以了解情况并指导救援过程。

船员必须熟练掌握航海英语以便能够与救援方进行有效的沟通,及时提供关键信息,协助救援行动。

第二节:航行中的通信航行途中,船员需要与其他船只、沿岸设施以及港务局等实时保持联系。

三副航海英语在海上通信中起着关键作用。

2.1 与其他船只进行通讯在船舶航行过程中,需要与其他船只保持沟通,以确保安全航行。

掌握航海英语的三副可以使用船舶电台与其他船只交流,例如通知其本船的位置、航向、速度等,以避免潜在的碰撞。

2.2 与沿岸设施的通讯船舶需要与沿岸设施,如港口、航标等进行通讯,以获取相关的导航信息。

在船舶接近港口时,三副航海英语的能力可以帮助船员与港务局沟通,预约码头、进港并与港口工作人员保持联系。

第三节:船舶检查船舶的日常运营需要定期检查和维护,航海英语在此过程中是不可或缺的。

3.1 分析维修说明书维修说明书通常是英文撰写的,船员使用说明书指导维修行动。

三副航海英语能够帮助船员准确理解维修说明书中的内容,确保按照正确的步骤进行船舶维护,以保证船舶的安全和正常运行。

航海英语三副题库

航海英语三副题库

航海英语三副题库(原创实用版)目录1.航海英语三副题库简介2.航海英语三副题库的内容3.航海英语三副题库的重要性4.如何有效利用航海英语三副题库正文航海英语三副题库是针对航海专业英语三副级别考试而设计的题库,旨在帮助考生熟悉考试题型、提高应试能力,同时也有助于提高航海从业人员的英语水平。

一、航海英语三副题库简介航海英语三副题库是根据我国航海教育的教学大纲和航海英语三副级别考试的要求而设计的,包括听力、阅读理解、语法、词汇、翻译等多种题型,全面覆盖了航海英语三副级别考试所需的知识点和技能。

二、航海英语三副题库的内容1.听力部分:包括对话、短文及问题,旨在检验考生的英语听力理解能力。

2.阅读理解部分:包括文章及问题,旨在检验考生的英语阅读理解能力。

3.语法部分:包括选择题、改错题等,旨在检验考生的英语语法知识。

4.词汇部分:包括单词辨析、词组搭配等,旨在检验考生的英语词汇量及应用能力。

5.翻译部分:包括中译英、英译中等,旨在检验考生的英汉互译能力。

三、航海英语三副题库的重要性航海英语三副题库是航海英语三副级别考试的重要参考资料,对于备考考生来说,可以帮助他们熟悉考试题型,检验自己的学习成果,找出自己的薄弱环节,进行有针对性的复习。

同时,对于航海从业人员来说,也可以通过题库的学习和练习,提高自己的英语水平,更好地适应航海工作的需要。

四、如何有效利用航海英语三副题库要有效利用航海英语三副题库,首先要进行系统性的学习,了解题库的内容和结构,然后根据自己的实际情况,进行有针对性的练习。

同时,要注意总结自己的错误和不足,及时进行修正和提高。

此外,还可以参加一些模拟考试,检验自己的学习效果,提高应试能力。

丙类三副评估材料 问答题

丙类三副评估材料 问答题

航海英语听力与会话问答题参考答案第一章公共用语1.What’syourdateofbirth?MydateofbirthisMay1st,1980.2.What’syourseaman’sbooknumber?Myseaman’sbooknumberisA123456.3.Whereareyoufrom?I’mfromYantai, China.4.What’syourCaptain’snationality?MyCaptain’snationalityisChina.5.Whatdoyouthinkisthemostimportantthingonboard? Ithinksafetyfirst.6.Whichportsdoyouoftencallat?IoftencallatYantai,QingdaoandDalianandsoon.7.Whatisyour favorite TVprogram? MyfavoriteTVprogramiscctvnews.8.WhatisyourfavoriteWebsite? MyfavoriteWebsiteisbaidu.9.Whatisyourfavoritedayoftheweek?Why? MyfavoritedayoftheweekisSunday.BecauseIcanhavearest.10.Whatisyourfavoritekindofmovie?Myfavoritekindofmovieisactionmovie.11.Whatisyourfavoritekindofmusic? Myfavoritekindofmusicislightmusic.12.Whatisyourfavoritemagazine? MyfavoritemagazineisTimes.13.Whatisthepopulationofyourhometown? Thepopulationofmyhometownisonemillion.14.Whatisthepopulationofyourcountry? Thepopulationofmycountryis1.3billion.跑音特15.Whatisthebestthingaboutyourhometown? Thebestthingaboutmyhometownisweather.It’scoolinsummerandwarminwinter.16.Whatistheworstthingaboutyourhometown? Theworstthingaboutmyhometownisheavytraffic.17.What’syourhometownlike? Myhometownisbeautifulwithpopulationofonemillion.It’sfamousforapple.18.Doyouhavemanydisastersinyourcountrywhicharecausedbyw eather?Yes,wehave.Suchastyphoon,earthquake,hurricaneandsoon.19.WhatsportsdoyouliketowatchonTV?IlikeNBA.20.Whatdoyouthinkisthemostpopularsportintheworld? Ithinkfootballisthemostpopularsport.跑piu乐第三章靠离与锚泊业务1.Canyoulistatleastthreemooringlines?你能列举至少三种系泊缆绳吗?Yes,Ican.Theyareheadline,sternline,springlineandsoo n.海的死的死不ring是的,我能。

三副航海英语试题详解

三副航海英语试题详解

三副航海英语试题详解知识点1:航海出版物(灯标表、天文历、海员手册、大洋航路等)【典型考题】1. You may find the time of slack water after low water in a certain port from ______.A. MFAG.B. Tide tables.C. Notices to mariners.D. Table of azimuth.【参考答案】B【参考译文】你可从潮汐表中查到某港在低潮后平潮时间。

【解析】slack water平潮low water低潮MFAG:Medical First Aid Guide医疗急救指南Tide tables潮汐表Notices to mariners航海通告Table of azimuth方位表【相关考题】1. You will find information about the duration of slack water in the__.A. Tidal Current TablesB. Tide TablesC. American Practical NavigatorD. Sailing Directions【参考答案】A【参考译文】你能从潮流表中查到有关平潮持续时间的信息。

【解析】duration持续时间Tidal Current Tables潮流表American Practical Navigator 美国实用航海,由美国数学家Bowditch撰写Sailing Directions航路指南2. The velocity of the current in large coastal harbors is______.A. predicted in Tidal Current TablesB. unpredictableC. generally constantD. generally too weak to be of concern 【参考答案】A【参考译文】在潮流表中可查询沿海大港的流速预报情况。

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2017航海英语复习六Key word 20: Humidity and Dew point(8)B783.Humidity is known as the amount of in the air.A. hydrogenB. moistureC. dustD. temperature【知识点】湿度【解析】湿度是指空气中水分的含量。

C750、Relative humidity is defined as __________A. the maximum vapor content the air is capable of holdingB. the minimum vapor content the air is capable of holdingC. the ratio of the actual vapor content at the current temperature to the air‟s vapor holding capabilityD. the ratio of the moisture content of the air to barometric pressure【知识点】相对湿度【解析】相对湿度定义为特定温度下空气中实际水汽含量与饱和含量之间的比值。

相关题目B751、________is the actual amount of water vapor in the air compared with the saturation amount of water vapor in the air at the same temperature and pressure, the figure is usually expressed as a percentage, with saturated air having a relative humidity of 100%.A. dew point temperatureB. relative humidityC. saturated humidityD. humidityB716、Relative humidity is the percentage of water vapor that is in the air as compared to the maximum amount it can hold at ______.A. a specific barometric pressureB. a specific temperatureC. a specific wind speedD. any timeA682. The expression “the air is saturated” means __.A. the relative humidity is 100%B. the vapor pressure is at its minimum for the prevailing temperatureC. precipitation has commencedD. cloud cover is 100%【知识点】相对湿度【解析】空气饱和是指相对湿度为100%。

D681.The dew point is reached when the ___A. temperature of the air equals the temperature of the seawaterB. atmospheric pressure is 14.7lbs. per square inchC. relative humidity reaches 50%D. air becomes saturated with water vapor【知识点】露点【解析】空气中水汽饱和时,刚好达到露点温度。

(气压一定)D664. As the temperature for a given mass of air increases, the ______.A. dew point increasesB. dew point decreasesC. relative humidity increasesD. relative humidity decreases【知识点】露点与相对湿度【解析】给定气团的温度升高时,相对湿度减小。

D676. A heated bulkhead has the effect on a hygroscopic commodity of ______.A. causing moisture to accumulate against the bulkheadB. lowering the vapor pressure of the commodityC. lowering the dew point of the airD. raising the vapor pressure of the commodity【知识点】货物照管——相对湿度与露点【解析】hygroscopic commodity 吸湿性货物Key word 21: Fog and visibility (9)D649. The fog produced by warm moist air passing over a cold surface is called_____.A. conduction fogB. radiation fogC. frontal fogD. advection fog【知识点】平流雾【解析】暖湿空气经过较冷的下垫面形成的雾是平流雾。

conduction 传导;radiation fog 辐射雾;frontal fog 锋面雾;advection fog 平流雾相关题目D720、The fog most commonly encountered at sea is called _________A. conduction fogB. radiation fogC. frontal fogD. advection fogD633. Advection fog is most commonly caused by ______.A. air being warmed above the dew pointB. saturation of cold air by rainC. a rapid cooling of the air near the surface of the Earth at nightD. warm moist air being blown over a colder surfaceB775. The passage of very cold air over much warmer water causes _________A. frontal fogB. arctic sea smokeC. advection fogD. radiation fog【知识点】蒸汽雾【解析】很冷的空气覆盖在暖海面上会形成“北冰洋蒸汽雾”。

寒冷稳定的空气覆盖在暖海面上,海面蒸发使贴近海面的空气达到饱和形成雾,称为蒸汽雾(steam fog)。

多产生于极地冰原的边缘、冰间水面、亚洲和北美的东海岸。

D749、The degree of being seen under certain weather condition is called _________A. frontB. depressionC. swellD. visibility【知识点】能见度【解析】特定天气条件下的能见距离称为能见度。

B754、When visibility is 10 nautical miles, we say that visibility is ___________A. very goodB. goodC. poorD. moderate【知识点】能见度的等级【解析】能见度为10海里,等级为良好。

相关题目A160. During this season each year, the visibility in the abovementioned area is ____.A. poorB. smallC. littleD. trifleA748. ______will reduce the visibility.A.dust B.sea water C.land sand D.WindB781.Visibility at sea can not be affected by .A. RainB. darkC. snowD. hailKey word 22: Cloud (6)A636. Cloud formations are minimal when the ______.A. surface temperature and temperature aloft are equalB. surface temperature and temperature aloft differ greatlyC. barometric pressure is very lowD. relative humidity is very high【知识点】云形成的条件【解析】上升运动+水汽→云形成C638. Clouds are classified according to their ______.A. sizeB. moisture contentC. altitude and how they were formedD. location in a front【知识点】云的分类【解析】云根据其高度和成因分类。

D627. A cloud of marked vertical development (often anvil-shaped) would be classified as ______.A. cirrusB. cirrocumulusC. altocumulusD. Cumulonimbus【知识点】云的分类【解析】垂直发展、呈砧状——积雨云D639. Clouds that form as small white flakes or scaly globular masses covering either small or large portions of the sky are ______.A. cirrusB. cirrostratusC. altostratusD. cirrocumulus【知识点】云的分类【解析】形状呈白色小薄片或球状鳞片,小范围或大面积的出现在天上——卷积云。

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