【正文】 2. The dove is the _________ (象征) of peace .3. We didn’t know the __________(原因) why she sold the house .4. The __________ (形勢(shì)) in the railway station is awful , especially in the Spring Festival .5. What was the _________ (起因)of the fire .6. We get information ___________(主要地) from the internet .7. She ___________ (喂養(yǎng))the bird twice every day .B. 完成句子:1. 榴蓮不好聞，但好吃。Durian isn’t good _____________ , but good _______________ .2. 人們必須停止破壞森林。 People must _______________________ the forest .3. 有許多瀕危動(dòng)物，如熊貓、老虎和鯨。 They are many animals in danger , ________________ panda , tigers and whales .4. 拯救熊貓還任重道遠(yuǎn)。 There is still _______________ to save the panda .5. 地球上可供飲用的水越來(lái)越少。 There is ________________ water ______________ in the world .Unit 3 Language in use主備人：陳毅然 審核：孫霞 2008年11月16日一、學(xué)習(xí)目標(biāo)：動(dòng)詞不定式二、重點(diǎn)及難點(diǎn): 動(dòng)詞不定式的用法三、 學(xué)習(xí)過(guò)程:一） 自主互助學(xué)習(xí)動(dòng)詞不定式的用法動(dòng)詞不定式是由“to+動(dòng)詞原形”構(gòu)成 (有時(shí)可以不帶to)。其否定形式是“not+動(dòng)詞不定式”(not不與助動(dòng)詞連用)。它屬于一種非謂語(yǔ)動(dòng)詞的形式，在句子中不能充當(dāng)謂語(yǔ)，沒(méi)有人稱和數(shù)的變化，但它可以保留動(dòng)詞的性質(zhì)，其本身可以帶賓語(yǔ)或狀語(yǔ)等附加成分（不定式和其附加成分稱為不定式短語(yǔ)）。動(dòng)詞不定式（短語(yǔ)）的句法功能非常廣泛，在句中可作主語(yǔ)、賓語(yǔ)、補(bǔ)足語(yǔ)、表語(yǔ)、定語(yǔ)及狀語(yǔ)等成分。一、作主語(yǔ)（1）動(dòng)詞不定式作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞常常用單數(shù)。例如：To do morning exercises is useful for our health. 做早操有利于我們的健康。To sweep the floor is my duty every day. 每天打掃地板是我的責(zé)任。（2）如果動(dòng)詞不定式太長(zhǎng)，常常用 it 作形式主語(yǔ)，而將真正的主語(yǔ)——?jiǎng)釉~不定式后置。例如： It took me half an hour to walk there．我走到那兒花了半小時(shí)的時(shí)間。It’s important for us to learn English well．對(duì)我們來(lái)說(shuō)，學(xué)好英語(yǔ)是重要的。二、作賓語(yǔ) （1）能夠接動(dòng)詞不定式作賓語(yǔ)的有 ask, agree, decide, fail, hope, manage, offer, plan, prepare, pretend, promise, refuse, wish 及 would like/love 等動(dòng)詞，但 finish, enjoy, miss, appreciate, mind, advise, suggest 等動(dòng)詞后面通常只能接動(dòng)名詞作賓語(yǔ)。例如：I hope to visit this place again. 我希望能再度訪問(wèn)此地。 She enjoys reading very much．她非常喜歡讀書(shū)。The driver failed to see the other car in time. 司機(jī)沒(méi)能及時(shí)看見(jiàn)另一輛車。（2）動(dòng)詞不定式與名等詞構(gòu)成復(fù)合賓語(yǔ)時(shí)，通常要用 it 作形式賓語(yǔ)，而將真正的賓語(yǔ)——?jiǎng)釉~不定式后置。例如： I think it our duty to obey the laws. 我認(rèn)為遵守法律是我們的義務(wù)。I found it difficult to see him here. 我發(fā)現(xiàn)在這里見(jiàn)到他是很難的。五、作表語(yǔ) （1）動(dòng)詞不定式往往放在系動(dòng)詞be（，bee, sound, taste 等系動(dòng)詞后面一般不接不定式）的后面作表語(yǔ)，表示將來(lái)的情況，說(shuō)明主語(yǔ)的內(nèi)容。例如：My wish is to bee a teacher．我的愿望是當(dāng)一名教師。Your job today is to clean the playground. 你今天的工作是打掃操場(chǎng)。（2）如果系動(dòng)詞后的動(dòng)詞說(shuō)明主語(yǔ)的性質(zhì)，特征，相當(dāng)于形容詞。這時(shí)就要用現(xiàn)在分詞作表語(yǔ)，而不用不定式。例如：He said that the story was interesting．他說(shuō)這則故事很有趣。二） 自主檢測(cè) you please tell me 　　　　　　　　　next?　A. how to do　　　　　 B. what to do　C. what do I do　　　 D. how I should do girl wasn39。t 　　　　　　　　　　to lift that bookcase.　A. too strong　　　　　 B. enough strong　C. strong enough　　　 D. so strong a time his grandmother found 　　　　　　accept his new idea.　A. hard　　 B. it hard　　 C. it hard to　　 D. it is hard to she has never been there before, I39。ll have someone 　　　　　　　　　　her the way.　A. show　　 B. to show　　 C. showing　 D. showed 　　　　　　　　　　drive slowly. The roads are wet.　A. had rather　　　 B. would rather　C. had better　　　 D. would better can make the brave soldier 　　　　　　　　　　his country.　A. turn against　　　 B. to turn against　C. to turn to　　　　 D. turn to the old days it was difficult for the poor 　　　　　　　　　　a job.　A. find　　 B. to find　　 C. look　　 D. to look for learning a foreign language, try our best 　　　　　　　　　　the spirit of it.　A. master　　 B. hold　　 C. take hold of　　 D. to master was foolish 　　　　　　　　　　his car unlocked.　A. for him to leave　　　 B. of him to leave　C. for him leave　　　　　 D. him to leave 　　　　　　　　　　the newspaper when you have finished it.　A. putting back　　　 B. put back　C. to put back　　　　D. will put back 11. I don39。t see how I could possible manage 　　　　　　　　　the work without 　　　　.　A. to finish； helping　　　 　B. to finish；being helped　C. finishing；helping　　　 　D. finishing；being helped 12.—You were lost on your way to the lake, weren39。t you? —Yes, we were and had to stop 　　　　　　　　　the way.　A. asking　　 B. to ask　　 C. asked　 D. to be asked our way back home, we 　　　　　　　　　　lunch because we felt hungry.　 to have　　　 to have　 having　　　　 to have flat needs 　　　　　　　　　. Do you want me 　　　　　　　　　　it for you?　 clean。 to do　　　 。 doing　。 to do　　　 be cleaned。 doing 12愛(ài)心 用心 專心