Unit 7 第三课时 (Grammar Focus 4c)—单元同步语法精讲精练（作业课件）-【原创新课堂】2022-2023学年九年级英语上册（人教新目标版）河南

原创新课堂 英语九年级上册人教版 第三课时 (Grammar Focus-4c)一单 元同步语法精讲精练 被动语态一会情态动词的被动语态 肯定句式：主语十情态动词十be十及物动词的过去分词（十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十及物动词的过去分词（十by), 。一般疑问句式：情态动词+主语+be十及物动词的过去分词（十by)? 肯定回答：Yes,主语十情态动词. 否定回答：No,主语十情态动词十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:一Must all the rooms be tidied up？所有的房间都必须整理好吗？ 一Yes,they must..是的，必须整理好。（肯定回答） 一No,they needn't.不，不必都整理好。（否定回答） 一Need he be operated on at once？他需要立即手术吗？ 一Yes,he must.是的，他必须。（肯定回答） 一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）十情态动词十主语十be十及物动词的过 去分词(+by…)? eg:When can my computer be repaired?我的电脑什么时候能修好？ ②疑问代词（作主语）+情态动词十be十及物动词的过去分词（十by.)? 【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.这支钢笔很好写。 语法精练 一、按要求完成下列句子。每空一词。 l.We can protect our environment by planting more trees.(改为被动语态) More treescan be planed to protectourenvironment. 2.Should our clothes be washed every day？(作肯定▣答) Yes they should 3.These young trees must be planted now.(改为主动语态) We must plant these young trees now. 4.Children should be allowed to watch TV on weekends.(改为否定句) Children should not be allowed to watch TV on weekends. 5.We should be allowed to wear our own clothes.(对画线部分提问) What should you be allowed to do 二、根据汉语意思完成下列句子。每空词数不限。 6.必须马上送这位女士去医院。 be sent to The lady must hospital at once. 7.手机不可以带到学校。 Mobile phones cannot be taken to school. 8.这种食物应该保存在冰箱里。 The food should be kept in the fridge. 9.聚会结束后，必须把教室彻底打扫干净。 The classroom must be cleaned completely after the party. 10.他们认为这份工作应该由一位男士来做。 They think the work should be done by a man. 三、根据短文内容及括号内所给提示词填空。 The Mid-Hudson Children's Museum is designed for families with young children.Here are some important rules for visitors. Children 11.must be followed (must,follow)by an adult when visiting the museum. ◆Parents12. should use (should,use)mobile phones less while visiting the museum with th