1、20122013 英语必修 3 外研版 Module 4（广安市）导学案（阅读 01）Module Four Sandstorms in Asia reading and vocabulary Step 1 Pre-readinga. Look at the photo and answer the following questions.1. Get Ss to come up with as many words as possible while looking at the picture.2. What is happening?3. What is the cyclist wear
2、ing and why?4. What do you think happened to traffic in this situation? Why?5. What do you think experts advise people to do in thissituation?b. Predi cationIf you are to write the article named “Sandstorms in Asia”, how many parts will you include in it? What will you write in each part?Step 2 Whil
3、e-readinga. Skimming and scanningRead the passage quickly and fill in the diagr am with one proper word.Part 1(Para1) d_Part 2(Para2-5) c_d_S_i_s_Part 3(Para.6) m_b. Detailed Reading1)Read the p assage carefully and answer the following question.1 What are sandstorms?2 In what places do they often h
4、appen?3 What does Ren Jianbos example tell us?4 Are there sandstorms in China? Where?5 Have sandstorms in China increased or decreased recently? Why?6 Why does traffic move slowly during the sandstorm?7 What does the government do to protect Beijing from sandstorms?2) Read the passage carefully and
5、then fill in the chart with suitable words.Parts Content Details1 major disasterdescription 来源:Causeinfluence2来源:suggestion3 measuresStep 3 Post-readinga. Decide if the following statements are true ( T ) or false( F ).Scientists have tried many ways to deal with sandstormsLand becomes desert only b
6、ecause people cut down trees and dig up grass.The Chinese Central West Station can not forecast sandstorm before it comes.The desert is 25o kilometers away to the west of Beijing. So there is no need to take some measures. Southwest China is part of the sandstorm center in Central Asia.b. Read the t
7、ext again and complete the following sentences1.The winds in a sandstorm can sometimes_ 2.When Ren jianbo was living in Inner Mongolia _ 3.Sandstorms in China appear to have increased _4.Cutting down trees and digging up grass can_5. Traffic moved slowly because _6.The government is planting trees t
8、o the west of Beijing to_ _Step 4 language explanations1 mass adj. 大规模的 a mass campaign 一场大规模的战役n. 团,块,堆a mass of clouds /hot aira mass of =masses of 许多,大量the masses 群众2 be caught in 被困于,遇到He was late for work yesterday afternoon because he was caught in the traffic jam.Ch arles Chaplin was once cau
9、ght in a snowstorm for several days.3 appear v. 1) 出现,出版,发行His book will appear in the bookshop next week.A smile appeared on his face when he heard the good news.2) 看起来,似乎。 系动词She appeared very tired.She appears to want to leave.4 prevent somebody from doing, stop somebody from doing,keep somebody
10、from doing阻止某人做某事。Note: keep sb. from doing 中 from 不可以省略, 因为 keep sb. doing 意为：让某人一直做某事。其他两个词组中 from 省略后意思不变。Im sorry to keep you waiting so long. 很抱歉让你等了这么久。We must keep him from complaining all day.我们不能让他整天抱怨了。grammar不定式Step 1 PresentationLook at the examples a-f. The underlined phrases are exampl
11、es of different types of infinitive.a. The wind is strong enough. It can move sand dunes.The wind is strong enough to move sand dunes.b. We were advised, “ Dont go outside.”We were advised not to go outside.c. Im cycling to work in a sandstorm and its frightening.Im frightening to be cycling to work
12、 in a sandstorm.d. There is nothing anyone can do.There is nothing to be done.e. I am the only person in my family who has been in a sandstorm.I am the only person in my family to have been in a sandstorm.f. Ive been caught in a sandstorm. It was a terrible experience.To have been caught in a sandst
13、orm was a terrible experience.Step 2 ExplanationsI 动词不定式的时态和语态形式 时 态 主 动 被 动 一般式 to do to be done进行式 to be doing完成式 to have done to have been done1. 动词不定式的一般式：表示与主动词处于同一时间层面或动作发生于主动词之后。 eg: He seems to understand what I said I hope to visit Paris again. 2. 动词不定式的进行式：表示与主动词同时发生且动作正在进行。 eg: The two ch
14、eats pretended to be working hard. 3. 动词不定式的完成式：表示不定式动作发生于主动词之前。 eg: She seems to have seen this film. He happened to have gone out when I went to see him 4. 动词不定式的被动式：表示与逻辑主语之间的被动关系。 eg: The meeting to be held tomorrow is about how to stop the pollution. I want to have been told the news earlier. 动
15、词不定式的句法功能 不定式的句法功能是做主语，表语，宾语，宾语补足语，主语补足语，定语，目的状语和结果状语，分别给出一个例句 ： 1） To master a foreign language is necessary for a college student. (主语) 2） Your job is to wash dishes.（表语） 3） She promised to give him a chance. (宾语) 4） The teacher told his students to pay attention to their pronunciation.（宾语补足语） 5）
16、I was asked to help him with his lessons.（主语补足语） 6） Have you got a pencil to draw pictures with?（定语） 7） Some scientists went to Germany to attend a medical conference .（状语） 8） He was too excited to say anything.（状语） 不定式的复合结构 1） “疑问词+不定式”可以做主语，宾语，表语，同位语。 The problem is how to persuade him to change h
17、is mind. 2) 带有逻辑主语的结构 of/ for sb. to do sth The first thing to do is to clean the room. It is foolish of you to say such words.辨析： It is + adj.+ of sb + to do sth.;/ It is + adj.+ for sb + to do sth. 差别：以上（1）结构中的 adj 是用来说明主语的特征的，并作其表语； 而结构（2）中的adj 是用来说明句中动词的特征的。 Eg: Its foolish of you to do such thi
18、ngs 可转化为 ：Youre foolish to do such things. 但:Its easy for you to learn English well不可以象上边那样转化。Step 3 Practice.Ex1.Fill in the blanks with the verbs in their proper forms.1. Its very kind of you _ it for me. (do) 2.My job is _ the students English. (teach)3.If you want _ with us, you should be ready
19、by eight oclock.(go)4.I dare not _ him about it. (tell)5.He told me _ at six thirty . (leave)6.The children are warned _ in that lake. (not swim)7.Before you leave the room, please remember _ the light. (turn of f)8.Youd better _(stay) at home and _ (do) your homework.9.Its too hard _ (do) it by mys
20、elf. 10.It takes about two hours _ (get to) the station.11.Its time _ our class. (start)12.I have a lot of things _ you. (tell)13.Im very glad _ you again. (hear from)14.The article is not easy _ . (understand)15.We didnt have time _ a rest. (to have)16.Ill try _ that again. (not do)17.Johns wish is
21、 _ a writer in the future. (become)18.Id like _ (go) to the Summer Palace.19.She doesnt know whether and when _ Shanghai in two days. (leave)20.She is not sure how _ out the maths problem. (work)Ex21. Dont forget _ the letter.A. to send B. send C. sending D. being sent2. The chair looks very old, bu
22、t in fact it is very comfortable to _.A. sit B. sit on C. be sat D. be sat on 3. Is _ necessary to return the book tomorrow?A. this B. that C. it D. which4. Im afraid they would not allow him _ here.A. to smoke B. smoking C. smokes D. smoke5. Mother told me _ the water before I drank it.A. boiling B
23、. boiled C. boil D. to boil6. On my way home, I stopped _ some food.A. buy B. to buy C. buying D. bought7. John was made _ the car for a week as a punishment.A. to wash B. washing C. wash D. to be washing8. The sitting-room needs _, but itll have to wait until Saturday.A. be cleaning B. to be cleane
24、d C. clean D. being cleaned9. The first thing I want to do is _.A. visit to him B. to visit him C. visiting him D. visited him10. Li Yang advised me _ too much, otherwise I would have been drunk.A. not to drink B. to drink C. not drinking D. drinkingCant help but 结构区别：cant help doing 禁不住 Hearing tha
25、t she was admitted to a famous college, she cant help jumping.1、不定式动词在介词 but, except, besides 等表示“除了”之意的后面时，如果这些介词之前有行为动词 do 的各种形式，那么介词后的不定式不带 to,否 则带 to。She could do nothing but cry. 她只有哭泣。Tom did nothing except wait before his parents came home. 父母回家之前，汤姆只有等待。Capitalists would do nothing besides m
26、ake profit from the workers.资本家除了从工人身上榨取利益之外，什么也不顾及。What do you like to do besides swim?除了游泳你喜欢做什么？He did nothing else than laugh.他只笑笑而已。I have no choice but to accept the fact.除了接受这一事实，我别无选择。I have no choice but to go. 我别无选择，只有走。2. 在 cant but, cant help but , cant choose but(不得不，只能)结构后，不定式不带 to。I c
27、ant help but be sorry. 我只能说抱歉。There being no buses, he cant but walk home.由于没有公共汽车，他只能步行回家。He cant choose but accept the offer.他只能接受提议。I cannot but admire his courage.我只能钦佩他的勇气。We could not but weep at our bad luck.对于我们的厄运我们只能哭泣。Its raining hard. I cannot help but stay at home.天在下大雨，我只好停在家里。They couldnt choose but stay there.他们不得不呆在那儿。
