【最新】2018-209学年人教新课标高中英语选修九课件：Unit 4 Using Language

Also, rainforests absorb a lot of rain
so that there’s a constant supply of clean water running into rivers and lakes.
Number the topics below in the
order in which you hear about them.
Look carefully at the photos of the plants and answer the questions.
living stone
Rafflesia
pitcher plants
Pitcher plant
Now listen to Mark, Gordon and Andrea telling their class about these plants. Which student talks about which plant?
□ 1 the area of the earth’s land covered by
tropical rainforest
□ 3 reasons why rainforests are being destroyed
□ 2 the rate of rainforest destruction □ 5 some consequences of rainforests being destroyed
3. 150 acres of rainforest are destroyed
every day. F Over 150 acres of rainforest are destroyed every minute..

Bee
Humming-bird
Butterfly
moth
Difficult words and expressions
evolve evolution attach to bat tube odour give out
发展；进展；进化 演变；进化 附上；贴上 蝙蝠 管子 气味 发出；分发
e.g. The change has been evolutionary. 变化是渐进的。
翻译下列句子。 1) 这位设计师逐渐形成了自己的风格。
The designer gradually evolved the style of his own. 2) 这家公司已经发展成为一家大机构。 The company has evolved into a large organization.
flower if they are to find the nectar.
F
Find other nouns in the chart that mean the same as “smell”. List adjectives from the chart that are used to describe different kinds of smells.
3) 在年底前你将一直属于这一部门。 You’ll be attached to this apartment until the end of the year.
4) 我们已变得十分留恋这所房子，舍不 得搬家。
We’ve grown very attached to this house and wouldn’t move.
3. How does an animal pollinate a flower? An animal pollinates a flower by collecting pollen from a flower and passing it onto another flower.

boiled water and some cooking oil.
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 Dish B tap water, cold temperature, oxygen Dish C no water, warm temperature, oxygen Dish D boiled water, oil, warm temperature, no oxygen
● 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.
On the bench.
4. What materials do the students need to set up the experiment? Four dishes and four pieces of cloth, a dish of seeds, some tap water, some
Fourth listening
Now listen to the second part of the
tape in which the class discusses the

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?
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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).
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Plant/
Advantages Disadvantages
pollinato
r Orchid
Wasp
The orchid is certain to be pollinated.
The female wasps collect a chemical from the orchid needed to attract
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wasp
7
Warming up
Discuss the question: What’s the relationship between plants and animals?
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Pre-reading
Before you read the text, glance quickly through it and answer these questions.
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5. Banks, together with James Cook, collected many examples of plants in Australia. T 6. Keeping plants alive during long land or sea voyage was very difficult, which caused the Wardian Case to be invented. T
Dove Tree
Ernest Henry Wilson (he title of the reading passage and the pictures and predict what it is about? Plant Exploration in the 18th And 19th centuries
Detailed reading:
Try to get the main idea of each paragraph: Para 1: explains when plant collecting began. Para 2: describes when and where plant collecting began on a large scale by Europeans. Para 3: talks about French Catholic missionaries who collected plants in China in the 18th century.
Joseph Banks
Dr Nathaniel Ward
The Wardian case
Robert Fortune (1812-1880)
Robert Fortune 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.

any rainforests left on earth.T 5. People can make more money from
harvesting rainforest plants than from
cutting down the rainforests. T
4 Listen again. Write notes under the headings below.
3. Why do you think tropical rainforests are important to the world? Because there are about 10 million species of plant and animal in the world. More than half of these live in the tropical rainforests. The rainforest could provide us with cures for diseases. Also, rainforests absorb a lot of rain so that there’s a constant supply of clean water running into rivers and lakes.
Unit 4 Exploring plants
Workbook
1 Before you listen to the tape, look at the pictures. One is of a tropical rainforest and the other is of a tropical rainforest that has been cut down. In groups, answer the questions.

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

be typical of sb. to do sth. It’s typical of him to have a sound sleep when we have English classes. It was typical of her to forget.
4. give out 1) vt. 发出 (气味、热等); 分发 2) vi. 用完, 用尽; 筋疲力尽 The sun gives out heat. Give the money out to the children.
True or false
1. Bees follow coloured lines to the nectar inside the flower. T 2. Flowers that are white or pale can
be seen by night pollinators. T
3. Butterflies are attracted to sweet-
4) 把……归于[(+to)] How can you attach the blame for this accident to the taxi-driver? 你怎么能把这次事故的责任归于出租车 司机呢? 5) 指派[(+to)] The new employee was attached to the sales department. 新来的雇员被派在销售部工作。
Unit 4 Exploring plants
Using language
Words
rot nectar bat evolve attach moth wasp beetle typical vt. & vi. 腐烂; 腐败 n. 花蜜; 甘露 n. 蝙蝠 vt. & vi. 发展; 进展; 进化 vt. 缚上; 寄上 n. 蛾 n. 黄蜂 n. 甲虫 adj. 典型的; 有代表性的