人教版高中英语精品课件 选修九 Unit4 Exploring plants-Reading task
3. What do you think “sweet tooth” means? If a person or an animal has a “sweet tooth”, they like sweet food very much.
4. Why do the male wasps try to mate with the orchid flowers? The male wasps try to mate with the orchid flowers because they look like and smell like female wasps.
5. Why do the female wasps visit the orchid flowers? Do they have a role in pollination? The female wasps visit the orchid flowers to collect the chemical that the male wasps were attracted to earlier. The female wasps do not have a role in pollination since the flowers are dying when they visit them.
certain supply of food
Plant/ Advantages pollinator
Disadvantages
Traveller’ The palm’s There is a s flower can be disadvantage for opened by the the palm only if palm
Pre-reading
Before you read the text, glance quickly through it and answer these questions. 1. What’s the topic of the text? 2. What three plants are featured? 3. What do the photos show you? 4. What three animal pollinators are featured?
1. What’s the topic of the text? Co-evolution. 2. What three plants are featured? The yucca, the Traveller’s Palm, and the Ophrys orchid.
3. What do the photos show you? Yucca flowers, a Traveller’s Palm, and an Ophrys orchid.
2.Can you guess why the Traveller’s Palm has that name? The Traveller’s Palm has this name because travellers used to drink its nectar when they were thirsty.
lemur.
Lemur
The lemur has a source of food.
there are no lemurs or other animals present strong enough to open the flowers.
Plant/ Advantages pollinato r Orchid The orchid is
4. What three animal pollinators are featured? The yucca moth, the Madagascar black lemur, a certain kind of wasp (the male, not the female wasp).
First reading
Now read the text more carefully and answer these questions. 1. Why can no other animals but the yucca moth pollinate the yucca? It’s only the yucca moth which is the right size and shape to pollinate the yucca.
Plant/ pollinato r Yucca
Advantages
Disadvantages
The yucca is certain They are totally to be pollinated.
Moth
dependent on each other for The moth’s caterpillars have a survival.
Reading on P78
Co–Evolution
yucca 丝兰
yucca moth
The Traveller’s Palm 棕榈树
The Madagascar black lemur
The Ophry up
Discuss the question: What’s the relationship between plants and animals?
Second reading
Now read and think about the advantages and disadvantages of the relationships between the plants and pollinations described in the text. Check your understanding and complete the table.
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人教版高中英语选修9课件：Unit 4 Exploring plants Language points(共41张PPT)
dated adj. 过时的，陈旧的
e.g. Those words all seem rather dated. Clothing styles became dated very quickly.
2. Many ancient civilisations saw the value of bringing back plants from distant lands.
appeal vt. 呼吁, 请求 appeal to sb. for help e.g. He appealed to his friends for support.
e.g. She is now on a very restricted diet, and can have no sweets. The space provided is too restricted. He finds life in the small town too restrictive.
We hope to finish the task next week, but the schedule is a bit tight. tight adv. 紧地, 满地 e.g. Hold tight to the railing or you may slip and fall.
The passengers were tightly packed in the train. “Look! Chris, look!” Andrew whispered, pressing my arm tightly. Shut the door tight. Make sure that the bags were packed tight.
restrict vt. 限制, 控制
高中英语 Unit 4 Exploring plants课件 新人教选修9
How，then，to control the rate at which flowers die？By controlling respiration.How is respiration controlled ？ By controlling temperature.We know that respiration produces heat， but the reverse is also true.Thus by maintaining low temperatures， respiration is reduced and the cut flower will age more slowly.
Unit 4
Exploring plants
Keeping Cup Flowers While everybody enjoys fresh cut flowers around his house， few people know how to keep them for as long as possible.This may be done by keeping in mind a few simple facts.An important thing to remember about cut flowers is that they are sensitive to temperature.For example，studies have shown that cut carnations (康乃馨) retain their freshness eight times longer when kept at 12 ℃ than when kept at 26 ℃.Keeping freshly harvested flowers at the right temperatures is probably the most important aspect of flower care.
人教版高中英语选修9课件：Unit 4 Exploring plants Reading
22
Result:
Seeds of the tree of Heaven were sent to _E_n_g_l_a_n_d_, and were grown _th_r_o_u_g_h_o_u__t _E_u_r_o_p_e_. In 1784, It was _in_t_r_o_d_u_c_e_d_ in _N_o_r_t_h_ _A_m__e_r_ic_a_.
grow from a seed?
6
Special plants
7
Do you have a courtyard or some pot plants on your balcony? Do you know where these plants come from? Are they Chinese plants or do they come from another country?
20
the beginning
When: Not until the eighteenth and nineteenth centuries
Who: European middle classes
European nations What: Taking great interest in
collecting plants
13
Through his use of the Wardian case, Fortune was able to introduce many of the best-known Chinese garden plants into cultivation in Europe and North America.
14
Père Paul Guillaume Farges (1844 - 1912)
Result:
Seeds of the tree of Heaven were sent to _E_n_g_l_a_n_d_, and were grown _th_r_o_u_g_h_o_u__t _E_u_r_o_p_e_. In 1784, It was _in_t_r_o_d_u_c_e_d_ in _N_o_r_t_h_ _A_m__e_r_ic_a_.
grow from a seed?
6
Special plants
7
Do you have a courtyard or some pot plants on your balcony? Do you know where these plants come from? Are they Chinese plants or do they come from another country?
20
the beginning
When: Not until the eighteenth and nineteenth centuries
Who: European middle classes
European nations What: Taking great interest in
collecting plants
13
Through his use of the Wardian case, Fortune was able to introduce many of the best-known Chinese garden plants into cultivation in Europe and North America.
14
Père Paul Guillaume Farges (1844 - 1912)
人教版高中英语选修九Unit4Exploringplants课件
【点拨】a large number of后面接复数名词， 所以排除A和C；a large quantity后面跟的 是desert，表示“沙漠”，用于不可数名次， 所以排除D。句意为：破坏森林的结果是大 片沙漠覆盖了陆地。选B。
【解析2】句中now known as Australia是过 去分词短语作the land的后置定语，相当于 定语从句which is now known as Australia。 be known as以……著称。
of plants in the land now known as
Australia. (Reading Para.4)
【解析1】quantity作名词，意为“量，数量， 总量”， quantity前可用修饰。
【考查方向】“a large quantity of + 可数名 词复数”作主语，相当于“a large number of + 可数名词复数”作主语，谓语用复数； “a large quantity of + 不可数名词”作主语， 相当于“a large amount of + 不可数名词” 作主语，谓语一般情况下用单数，但如果 “quantities of+不可数名词”作主语，谓语 用复数。
【真题再现】In dealing with public relations,
we should make every effort to prevent the _____ in personality. （上海2004）
A. contact B. contrast D. conflict
C. connection
1 In l5OO BC, the Queen of Egypt sent ships to gather plants, animals and other goods.
【解析2】句中now known as Australia是过 去分词短语作the land的后置定语，相当于 定语从句which is now known as Australia。 be known as以……著称。
of plants in the land now known as
Australia. (Reading Para.4)
【解析1】quantity作名词，意为“量，数量， 总量”， quantity前可用修饰。
【考查方向】“a large quantity of + 可数名 词复数”作主语，相当于“a large number of + 可数名词复数”作主语，谓语用复数； “a large quantity of + 不可数名词”作主语， 相当于“a large amount of + 不可数名词” 作主语，谓语一般情况下用单数，但如果 “quantities of+不可数名词”作主语，谓语 用复数。
【真题再现】In dealing with public relations,
we should make every effort to prevent the _____ in personality. （上海2004）
A. contact B. contrast D. conflict
C. connection
1 In l5OO BC, the Queen of Egypt sent ships to gather plants, animals and other goods.
人教版高中英语精品课件 选修九 Unit4 Exploring plants-Reading
the beginning
when: Not until the eighteenth and nineteenth centuries Who: European middle classes
European nations What: Taking great interest in collecting plants
Reading
Warming up How much do you know about plants?
DISCUSSION:
Did you know that:
1. some plants do not have flowers? 2. some plants have roots that live in the air? 3. some plants eat meat? 4. some plants need animals to pollinate them?
5. some plants grow on other plants? 6. plants are adapted to live in specific environments? 7. people buy plants that come from other countries for their gardens? 8. a new plant does not always grow from a seed?
Result: Seeds of the tree of Heaven were sent to ______, and were England grown Throughout _________ ____ . Europe In 1784, It was______ introduced in ______ _______ North America
人教版高中英语选修9课件：Unit 4 Exploring plants Using languag
Read the text and answer the questions.
1. What is the advantage for animals of visiting flowers? Animals get food called nectar from the flowers.
2. Why do some plants need animals? Some plants need animals to pollinate them.
What is the text about? What do pictures show you? What is the chart about?
The text is about flowers and their animal pollinators. The pictures show different kinds of animal pollinators and their flowers. The chart lists animal pollinators and the characteristics of the flowers they pollinate.
mountain climbers. 他参加了那ospital is attached to that
university. 这家医院附属于那所大学。
2) A young man attached himself to me at the party and I couldn’t get rid of him. 在聚会上有个年轻人总缠着我，我简 直无法摆脱他。
1. Over time, many flowering plants and their animal pollinators have evolved together. evolve 常用作不及物动词，意为“进化， 形成，发展”，常与 from 搭配使用， 意为“从……发展而来”。
高中英语选修9课件： Unit4Exploring plantsWriting 含解析 精品
Dish B tap water, cold temperature, oxygen
Dish C no water, warm temperature, oxygen
Dish D boiled water, oil, warm temperature, no oxygen
Fourth listening Now listen to the second part of the tape in which the class discusses the results of the experiment. Complete the table of results.
seeds
grow?
Dish C
No
Because they didn’t get any water.
Because they were watered
Dish D
No
with boiled water which has no oxygen. Also, they were
covered with oil which
Third listening
Listen to the first part again and complete the table of conditions that each dish of seeds was given.
Conditions
Dish A tap water, warm temperature, oxygen
Well, boiled water has no oxygen in it and seeds need oxygen to grow. And What about the oil? Sandy? S: Wouldn’t the oil make sure that no Oxygen could get to the seeds?
Dish C no water, warm temperature, oxygen
Dish D boiled water, oil, warm temperature, no oxygen
Fourth listening Now listen to the second part of the tape in which the class discusses the results of the experiment. Complete the table of results.
seeds
grow?
Dish C
No
Because they didn’t get any water.
Because they were watered
Dish D
No
with boiled water which has no oxygen. Also, they were
covered with oil which
Third listening
Listen to the first part again and complete the table of conditions that each dish of seeds was given.
Conditions
Dish A tap water, warm temperature, oxygen
Well, boiled water has no oxygen in it and seeds need oxygen to grow. And What about the oil? Sandy? S: Wouldn’t the oil make sure that no Oxygen could get to the seeds?
U4Exploring plants-Reading课件
Para 7: is about Robert Fortune, a British plant collector who made several trips to China in the 19th century.
Para 8: is about Father Farges, a French Catholic missionary who collected plants in China in the 19th century.
Joseph Banks (1768--1771)
Dr Nathaniel Ward
The Wardian case
Robert Fortune (1812-1880) represented the Horticultural Society of London (now the Royal Horticultural Society) as a collector in China shortly after the Treaty of Nanjing had brought the Opium War to a close. Through his use of the Wardian case, Fortune was able to introduce many of the best-known Chinese garden plants into cultivation in Europe and North America.
高三人教新课标版选修九
Unit 4 Exploring plants
Reading
Pre-reading
Do you have a courtyard or some pot plants on your balcony? Do you know where these plants come from? Are they Chinese plants or do they come from another country?
人教版英语选修九 unit 4 exploring plants reading(课件) (共57张ppt)
h结构： 1. 他躺在床上，门关着。 the door shut/closed He lay on the bed with___________________. 2. 汤姆不在，我一直感觉孤独。 With ___________, Tom away I always feel lonely. 3. 这个人双手被绑着被带进来了。 his hands tied The man was brought in with __________. 4. 有着太多问题要去处理，新经理担忧的吃不 下任何东西。 many problems tonew settle Withso _________________, the manager was too worried to eat anything. 5. 机器开着，他开始工作了。 the machine running He started to work with _________________.
1. The castle dates back to the 14th
century. （某个时期）
2. My interest in NBA dates from my
schooldays. （一段时期）
date构成的短语 up to date / updated 最新的 过时 定下日子
out of date / outdated
expedition recorded in history was around 1500 BC when the Queen of Egypt sent ships away to gather plants, animals and other goods. plant collecting expedition ： 收集植物的探险 历史上有记载的第一个收集植物的探险 是在公元前 1500 年，那时候埃及女王 派出船只去收集植物、动物以及其他货 物。
1. The castle dates back to the 14th
century. （某个时期）
2. My interest in NBA dates from my
schooldays. （一段时期）
date构成的短语 up to date / updated 最新的 过时 定下日子
out of date / outdated
expedition recorded in history was around 1500 BC when the Queen of Egypt sent ships away to gather plants, animals and other goods. plant collecting expedition ： 收集植物的探险 历史上有记载的第一个收集植物的探险 是在公元前 1500 年，那时候埃及女王 派出船只去收集植物、动物以及其他货 物。
高中英语 Unit4Exploring plants-Writing课件 新人教选修9.ppt
● what the “procedure” tells you (the steps you carry out to set up the experiment); ● the grammatical structures used for each section of the report.
LISTENING TEXT
An experiment on plants Part1: Listen to a teacher(TH) helping
her class set up an experiment. TH: OK, everybody, this morning we’re
going to do an experiment to find out three important conditions that seeds need in order to start growing.
Did the Reasons why or seeds grow? why not
Yes Dish A
Dish B
No
Because they had water, warmth and oxygen.
Because it was பைடு நூலகம்oo cold.
Did the Reasons why or why not
Outline
Aim: To find out three important conditions that seeds need in order to start growing. Materials:
1. four dishes A B C D
2. four pieces of cloth