初中英语九年级全册Unit7Teenagersshou单元同步语法精讲精练课件 人教新目标版 9页

Unit 7　Teenagers should be allowed tochoose 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＋及物动词的过去分词(＋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＋not＋be＋及物动词的过去分词(＋by…). ►一般疑问句式：情态动词＋主语＋be＋及物动词的过去分词(＋by…)? 肯定回答：“Yes，主语＋情态动词．”；否定回答：“No，主语＋情态动 词＋not.” 【注意】含must的一般疑问句作否定回答时应用needn't；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。(肯定回答) —No，they needn't.不，不必都整理好。(否定回答) —Need he be operated on at once？他需要立即手术吗？ —Yes，he must.是的，他必须。(肯定回答) —No，he needn't.不，他不需要。(否定回答) ►特殊疑问句式：①疑问副词/代词(不作主语)＋情态动词＋主语＋be＋及物 动词的过去分词(＋by…)? ②疑问代词(作主语)＋情态动词＋be＋及物动词的过去分词(＋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： ①不及物动词不能用于被动语态。如：die，happen，take place等。 ②感官动词、半连系动词没有被动语态。如：feel，become，get，look， seem等。 ③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、单项选择。 (　)1.Some people think trees ________ on Tree Planting Day only.(2019，遂 宁) A．should plant　　　　　　B．should be planted C．should be plant D．should be planting (　)2.—Tom is always careless with his schoolwork.Could you help him? —No problem! I think he ________ to think twice before starting. A．should be told B．can tell C．should tell D．can be telling B A (　)3.—I want to borrow the book, but I don't know how long it may ________. —For two weeks. A．borrow B．be borrowed C．keep D．be kept D 二、按要求完成下列句子。 4．We must wash our hands before meals.(改为被动语态) Our hands ________ ________ ________ before meals. 5．The young tree can be planted now.(改为主动语态) We ________ ________ the young tree now. 6．The classroom must be cleaned after_school．(对画线部分提问) ________ ________ the classroom ________ ________？ must be washed can plant When must be cleaned 本课时其他知识点精讲精练 ►manage动词，意为“完成(困难的事)；应付(困难局面)”。manage to do sth. 意为“设法做成某事”，相当于succeed in doing sth.。 一、根据句意及提示完成下列句子。每空一词。 1．He is well known in the local _____________ (社区). 2．The old in our ________ (社会) need care and protection. 3．I hope to have a ________ (机会) to explain it to you. 4．Eric managed ________ (finish) reading that novel in one month. 5．Parents should be patient enough when they ________ (education) their kids. community society chance to finish educate 二、根据汉语意思完成下列句子。每空一词。 6．你应该让孩子们远离火。 You should ________ the children ________ ________ fire. 7．该是你自己做决定的时候了。 It's time for you to ________ ________ ________ ________． 8．你能帮忙照顾这些动物吗？ Can you help me to ________ ________ ________ these animals? keep away from make your own decision　 take care of