人教课标 高一 必修 2 Unit 4.

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1 人教课标 高一 必修 2 Unit 4

2 ANIMAL EXTINCTION

3 Dinosaur is an animal that we can not see on the earth now
Dinosaur is an animal that we can not see on the earth now. What we see in the museum are the fossils of many kinds of dinosaurs. They were found by the people at home and abroad. Some dinosaurs have long necks and tails, while others look like birds.

4 Enjoy the video

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6 1. When did dinosaurs live?
Tens of millions of years ago. 2. When did dinosaurs die out? About 65 million years ago.

7 3. How did dinosaurs die out?
A large rock hit the earth and put too much dust into the air. The earth got too hot to live on.

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9 Read the text carefully and fill in the blanks.
Animals Details Dinosaurs ★They lived on the earth tens of millions of years ago. ★There were many different kinds of dinosaur and a number of them used to live in ______. China

10 Animals Details Dinosaurs ★The _____ of twenty-five species have been found in Henan Province. ★Not long ago a(n) _____ new species of bird-like dinosaur was discovered in Liaoning Province. Scientists found they could not only run like the others but also _______ trees. eggs rare climb

11 Animals Details Dinosaurs ★They ________ suddenly about 65 million years ago. Nobody knows for sure why and _____ dinosaurs disappeared from the earth. ________ ★It is one of the animals and plants that have died out in the _____ 500 years. died out how The dodo last

12 Animals Details __________ ★It lived on the Island of Mauritius and was a very friendly animal. The dodo

13 There are many different species of dinosaur and all of them have been found in China.
Not long ago, a rare new species of bird-like dinosaur was discovered in Henan Province. several Liaoning

14 think 3. Some scientists are sure dinosaurs died out because the earth got too hot for the dinosaurs to live on any more. 4. Dinosaurs died out quickly about 65 million years ago and many animals have died out in the same way.

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16 They lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time. 本句是一个由and连接的并列句，其中，long before 引导时间状语从句，进一步解释说明tens of millions of years ago，意为“在……之前很久”。注意：before long 意为“不久以后”。

17 如： I knew Tom long before I knew you. 我在认识你之前很久就认识汤姆了。 We hope to finish our experiment before long. 我们希望不久就把实验做完。

18 It ___ long before we ___ the result of
the experiment. A. will not be; will know B. is; will know C. will not be; know D. is; know before long 不久以后 e.g. I hope to see you again before long. We were tired of waiting and hoped the bus would come before long.

19 on the earth 在地球上。在earth, sun, moon等表达世界上独一无二的名词
come into being的意思是“开始存在; 发生”。 我们不知道这世界是什么时候存在的。　　　　　　　　　　　　　　 We don’t know when the world came into being.

20 2. When scientists inspected the bones,
they were surprised to find that these dinosaurs could not only run like the others but also climb trees. 本句中的to find that ...是不定式作原因状语。不定式用来表原因时，常修饰表示情感、心理状态、性格等的形容词，如：

21 happy， glad，lucky， fortunate， surprised， angry，anxious， cruel， clever， frightened，shocked， sorry， eager， proud，disappointed， foolish， impatient，unwise， naughty等。如：

22 We were surprised to see him.
我们真想不到会见到他。 We are proud to be young people of new China. 作为新中国的青年，我们感到很骄傲。 You were foolish to act like that. 你那样做很愚蠢。

23 3. Some scientists think it came after an
unexpected incident when a huge rock from space hit the earth and put too much dust into the air. 本句中when引导定语从句，其先行词为incident。关系副词when的先行词一般是表时间的名词，如: He came last night when I was out. 但有时并不直接是表时间的名词，如：

24 In 1921 Einstein won the Nobel Prize, and was honored in Germany until the rise of Nazism when he was driven from Germany because he was a Jew. 1921年爱因斯坦获得了诺贝尔奖，他在德国很受尊敬。纳粹上台后由于他是犹太人而被赶出了德国。

25 4. According to a UN report, ….
According to John, the bank closes at 4 p.m. Each man will be paid according to his ability.

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28 We call it _________. Milu deer

29 Information for research into Milu deer
Appearance of Milu deer Features of Milu deer like other deer but with large horns live together, eat grass and tree branches; like cool, wet weather

30 Reasons for disappearance
The life of the Milu deer in Britain How they returned over-hunted and killed live happily and number increased in 1985 the government of China asked for some to be returned to China, the Duke of Bedford was happy to agree

31 Value of the cooperation
Present situation Value of the cooperation great increase in number and several Milu deer centres have been set up an increase in the friendship and understanding between China and Britain

32 I. 根据下列各句句意及所给单词的汉语提 示，写出所缺单词的正确形式。
1. My son can remember every small ________ (事件) in great detail. 2. It was one of the region’s most ______ (猛烈的) storms in years. incident fierce

33 3. The wind was blowing _____ (尘土) and leaves up from the ground.
4. People want love stories with happy ________(结局). 5. My father _________ (检查) the tree and found that there was indeed a branch broken off. dust endings inspected

34 II. 选用方框内合适的词或短语，并用其 适当形式填空。
1. What do you _______ we do to protect wildlife? 2. No one knows when such a custom ______________. come into being according to home of suggest suggest came into being

35 3. ____________ our records, the books you have borrowed should now be returned to the library.
4. Meizhou is regarded as the ________ football in Guangdong Province. According to home of

36 III. 根据汉语提示，完成下列句子。 1. 在过去的十年中，大学生花在电脑上的 时间一直在增加。 _______________________, the amount of time a college student spends on the computer has been increasing. In the past / last ten years

37 2. 不久前，我有一次难忘的经历。 ____________, I had an unforgettable experience. 3. 像许多别的男孩一样，打篮球是我最 喜爱的体育运动。 Like _______________, playing basketball is my favorite sports. Not long ago many other boys

38 4. 他工作和谈话的方式与众不同。 ________ he works and talks is different from others. 5. 我确切地知道，机会属于时刻准备着 的人。 I _____________ that chances belong to those who are always ready. The way know for sure

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