必修二Unit4usinglanguage

1、Unit 4 Wildlife ProtectionPeriod 4 Using language導(dǎo)學(xué)案授課時間 班級 姓名 Learning aims:1. To learn the following useful new words and expressions in the passage: dinosaur, come into being, inspect, according to, incident, dust 2. To know about animal extinction.3. To improve abilities of listening and reading

2、.Learning important points:1. To know about the animals which have already extincted.2. To learn about the wildlife protection.3. To learn different reading skills.Learning approaches: 1. Independent learning approach 2. Cooperative learning approach 3. Explorative learning approachLearning steps. P

3、reviewing (課前預(yù)習(xí))單詞、詞組預(yù)知Key Words1. 恐龍(n) 2.檢查 (vt.) _3. 事件，事變(n) 4. 忠誠的 (adv) 5. 灰塵(n) 6.兇猛的猛烈的 (adj.) 7. 結(jié)局結(jié)尾(n) Key phrases1. Come into being 2. According to 2. So that 3. A number of 3. in fact 4. Too much 5. Be friendly to 6. before long Step II. Reading 1. Answer the following question.1) What

4、the passage mainly talked about? 2) What have disappeared during the long history of the earth? 3) when did the dinosaurs live on the earth? 4) According to a UN report, how many animals and plants have disappeared in the last 500years? 5) Where did the dodo live? 2. True or False1) The eggs of twen

5、ty-five species have been found in Xixia county, Ningxia province. ( )2) The scientists knew the dinosaurs not only run like others but also climb threes, from the way the bones were joined together. ( )3) The dodo is fierce. ( )4) Dinosaurs died out suddenly about 65 thousand years ago. ( )5) The s

6、cientists know for sure why and how dinosaurs disappeared from the earth in such a short time. ( )Step III. Post-readingRead the passage carefully again and fill the right answer in the banks. Many animals have d _ during the long history of the earth. The most famous of these animals are d _ .They

7、lived on the earth tens of millions of years ago, long before humans came into _ and their future seemed s _ at that time.Dinosaurs died out suddenly about 65 million years ago .Some scientists think it came after an u _ incident when a huge r _ from space hit the earth and put too much d _ into the

8、 air. Others think the earth got too hot for the dinosaurs to live on any more. Nobody knows for s _ why and how dinosaurs disappeared from the earth in such a short time .Step IV. Language Points1. They lived on the earth tens of millions of years ago, long before humans came into being and their f

9、uture seemed secure at that time. 點撥1 本句是一個由and連接的并列句，其中，long before 引導(dǎo)時間狀語從句，進(jìn)一步解釋說明tens of millions of years ago，意為“在之前很久”。1)before long 不久以后 。 Long before 很久以前；早在。之前2)on the earth. 在地球上。在earth, sun, moon等表達(dá)世界上獨一無二的名詞前, 要加the。 3)come into being“開始存在;發(fā)生”。Eg.我們不知道這世界是什么時候存在的。We dont know when the wo

10、rld came into being.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. 點撥 本句中的to find that .是不定式作原因狀語。不定式用來表原因時，常修飾表示情感、心理狀態(tài)、性格等的形容詞，如：happy， glad，lucky， fortunate， surprised， angry，anxious， cruel， clever，

11、 frightened，shocked， sorry， eager， proud，disappointed， foolish， impatient，unwise， naughty等。如：We are proud to be young people of new China. 作為新中國的青年，我們感到很驕傲。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. 點撥 本

12、句中when引導(dǎo)定語從句，其先行詞為incident。關(guān)系副詞when 的先行詞一般是表時間的名詞，如: He came last night when I was out. 但有時并不直接是表時間的名詞，如：4. Nobody knows for sure why and how dinosaurs disappeared from the earth in such a short time For sure確切地，肯定地5. According to a UN report,. according to 根據(jù), 據(jù)說 According to John, the bank closes

13、at 4 p.m. Each man will be paid according to his ability.Step V Exercises:I.選詞填空Long before ,tens of millions of , a number of .according to , for sure, teach sb. a lesson , come into being ,so that1. I will do it what you told me.2. No one knows when the organization .3. They are leaving for Beijin

14、g tomorrow .4. In China, students go abroad for further education very year.5. The accident that he would never forget.6. The place of interest has attracted tourists since 1998.7. He studies hard he can keep up with his classmates.8. The man had been married he met Mary.II.單項填空1. He is a foreigner.

15、 But now he on the right of the road in China. A. used to drive B. is used to drive C. used to driving D. is used to driving2.In China, number of people are studying English now, and the number Growing year by year. A .a; is B. a; are C .the; is D. the; are3. catch up with others, I got up early and

16、 stayed up late recently. A. In order to B. So as to C. In order to D. So that4. No one knows when such a custom first . A .came into power B. came into being C. came true D. came out5. Is it that he will come to our party tonight? Yes, thats for . A .sure; certain B. certain; sure C. make sure; cer

17、tain D. Make certain; sure6. Joe, dont now; youre improving all the time. It wont be long you can speak English well. A. give in; until B. give up; before C. give in; when D. give up; after7. I dont like you speak to her. A. the way B. the way in that C. the way which D .the way of which8. You should the car before you buy it. A .inspect B. respect C. expect D. aspect9. -What can I do