九年级英语全册 Unit 7 Teenagers should be allowed to choose their own clothes（第3课时）（Grammar Focus-4c）同步语法精讲精练 人教新目标版

1、Unit 7Teenagers should be allowed to choose their own clothes,第三课时(Grammar Focus4c)单元同步语法精讲精练,含情态动词的被动语态,肯定句式：主语情态动词be动词的过去分词(by.) eg：Teenagers should be allowed to choose their own clothes.青少年应该被允许选择他们自己的服装。 否定句式：主语情态动词notbe动词的过去分词(by.) 一般疑问句式：情态动词主语be动词的过去分词(by.)? 肯定回答：“Yes，主语情态动词”；否定回答：“No，主语情态动词

2、not”。 【注意】含must的一般疑问句作否定回答时应用neednt；而含need的一般疑问句作肯定回答时应用must,eg：Must all the rooms be tidied up？所有的房间都必须整理好吗？ Yes，they must.是的，必须整理好。 No，they neednt.不，不必都整理好。 Need he be operated on at once？他需要立即手术吗？ Yes，he must.是的，他必须。 No，he neednt.不，他不需要,特殊疑问句式：疑问副词/代词(不作主语)情态动词主语be动词的过去分词(by.)? 疑问代词(作主语)情态动词be过去分

3、词(by.)? eg：When can my computer be repaired？我的电脑什么时候能修好？ 【拓展】不能用被动语态的几种动词： 不及物动词不能用于被动语态。如：die，happen，take place等。 感官动词、半连系动词没有被动态。如：feel，become，get，look，seem等。 有些动词用主动形式表被动意义。 eg：This pen writes well.这支笔很好写,一、用括号内所给动词的适当形式填空。 1Many more trees should _ (plant) this year. 2Must the work _ (finish) by

4、 6：30 this afternoon? 3How can the lost boy _(find)? 4The stars can _ (not see) in the daytime. 5Can this kind of bike _(buy) in that shop,be planted,be finished,be found,not be seen,be bought,二、按要求完成句子，每空一词。 6Nobody can answer the question.(改为同义句) The question _ _ _ by anybody. 7We should brush our

5、 teeth twice a day.(改为被动语态) Our teeth should _ _ twice a day. 8Can you take care of the children？(改为被动语态) _ the children _ _ care of? 9The classroom must be cleaned after_school(对画线部分提问) _ _ the classroom_ _? 10We must wash our hands before meals.(改为被动语态) Our hands _ _ _ before meals,cant be answere

6、d,be brushed,Can,be taken,When must,be cleaned,must be washed,本课时其他知识点精讲精练,chance可数名词，意为“机会；可能性”。 a chance of doing sth./a chance to do sth.做某事的机会 educate动词，意为“教育；教导”。 【拓展】education名词，意为“教育”。 keep.away from避免接近，远离 make ones own decision自己做决定,1Mr. Jones got great support from his _(社区) 2I hope to have a _ (机会) to explain it to you. 3I will not be able to _ (应付) the situation without your help. 4The old in our _ (社会) need care and protection. 5Parents should _(教育) their children to behave well. 6你应当学着自己做决定。 You should learn to _ _ _ _ 7请远离那台机