9AU3Grammar讲解文本.doc

9AUnit 3 Grammar讲解文本同学们，大家好！又到了我们微课堂的时间了。今天我们学习的内容是9A第三单元Grammar,首先请大家完成屏幕上的练习。（等30秒至1分钟）( )1._ (hand) in homework on time is important for us students. A. Hand B. To handC. To handingD. Handed( )2 He has _ few friends that he doesnt know who to _. A. so, talk with B. such, talk to C. so, talk D. such, talking( )3.-Your TV is a bit noisy. Would you please turn _while Im doing my homework? - No problem. A. off it B. it downC. on it D. it up4. Millie doesnt know how she should solve her problem. (保持句意基本不变) Millie doesnt know _ _ solve her problem.这些题目涉及哪些知识点呢？知识点1.动词形式放句首有以下几种情况： 1）动词原形开头为祈使句。 eg: Listen carefully，please. 2）动词不定式或动名词短语作主语。 eg: Reading is good for us. To fly there is a good choice. 3) 动词不定式短语放句首作目的状语。 eg: To catch the bus, he got up early.请看例题解析：诊断练习第一题( )1._in homework on time is important for us students. A. Hand B. To hand C. To handing D. Handed 此题中，准时上交作业为句子主语。不可用动词原形也不可用过去式，所以正确答案为B。知识点2. 动词不定式除了以上作用：充当句子的主语和目的状语外，还有以下作用。1） 放及物动词后作宾语。Eg: prepare/plan/hope/like/want/decide/ to do sth 2） 放be动词后作表语。 Eg: My dream is to be a doctor. 3） 放名词后作定语。 Eg: I have a lot of work to do.4） 放动词短语后作目的状语或结果状语。Eg: Mr Smith came here to attend a meeting. (目的) He has grown up to be a handsome young man. (结果) 5） 放及物动词加宾语后还可作宾语补足语。Eg: ask/tell/want/ advise/teach/order/ invitesb to do sth. make/let/ have/see/hear/watch sb do sth6） 疑问词+动词不定式短语充当句子的宾语，构成简单句，改为复合句时此短语直接改为宾语从句。 eg: I dont know who to talk to/with.(同义句) I dont know who I should talk to/with. 注意此例句中talk 为不及物动词，故不能省略介词to或with。请看例题解析：诊断练习第二题( )2. He has _few friends that he doesnt know who to _. A. so, talk with B. such, talk to C. so, talk D. such, talking 此题中，第一格考查so与such 的区别。根据多多少少都用so，可排除B和D，第二格为点拨内容，所以正确答案为A。再看诊断练习第四题4. Millie doesnt know how she should solve her problem. (保持句意基本不变) Millie doesnt know _ _ solve her problem. 此题中要求将含宾语从句的复合句改为简单句，运用点拨知识，反过来改为疑问词+不定式即可，所以正确答案为how to。知识点3.与电器等相关的四个短语辨析如下： turn on 开 turn off 关 turn up 调高音量 turn down调低音量 注意四个短语中，on/off/up/down均为副词 动词+副词构成的短语，宾语是名词时，可以放中间也可放后面。宾语是代词时，只可放中间。 eg: turn on the TV=turn the TV on turn it on turn them off请看例题解析：诊断练习第三题 ( )3.-Your TV is a bit noisy. Would you please turn _ while Im doing my homework? - No problem. A. off it B. it down C. on it D. it up 此题中根据第一句a bit noisy和下文while Im doing my homework,可排除C和D, 再根据语法代词只可放中间，所以正确答案为B。大家今天学得怎么样呢？让我们来做下面的反馈练习。反馈练习A.用括号中单词的适当形式填空。1. This morning, my mother had me _(help) her cook breakfast.2. There is no need _(tell) him about it.3. The boy was made _ (clean) the window just now. 4. _(watch) the sunrise, the girl got up very early.B.单项选择。( ) 5. The students have little time _ . They have too much homework. A. play B. playing C. plays D. to play ( ) 6. May works hard _ English and she is always the first _ to school. A. in, to getB. at, to getC. in, gettingD. at, getting( ) 7. Ask them to turn _or turn _ the TV while you are studying. A. off, up B. down, on C. on, up D. down, off( ) 8. Our teacher tells us not to talk in class. The underlined words are used as _. A. subject B. object C. attributive D. object complementC.句型转换。9. We often see Tom clea