人教版九年级英语第三单元总复习(九年级英语知识点整理)

人教版九年级英语第三单元总复习(九年级英语知识点整理)(1)

Unit 3 Teenagers should be allowed to choose their own clothes.

Section A

185.allow 与let:(1)allow允许,准许,不能用于祈使句的句首;allow sth允许/准许某事;

allow sb to do sth允许某人做某事;allow doing sth允许做某事;

be allowed to do sth被允许做某事;allow sb sth = allow sth to sb使(某人)得到(某物)

(2)let让,较口语化,常用于祈使句,不能用于被动语态;let sb do sth让某人做某事.

186.被动语态:be done 主语是动作的承受者,用by引出动作的执行者.

一般现在时态:am/is/are done;一般过去时态:was/were done;一般将来时态:shall/will be done;

情态动词加动词原形:情态动词 be done;现在完成时态:have/has been done;

在被动语态中,动词的非谓语形式中原来省略了to的动词不定式要把 to写出来.

Did you see Jack come into the classroom? Was Jack seen to come into the classroom?

187.sixteen-year-olds = sixteen-year-old children复合名词,十六岁的孩子

188.part-time合成形容词,兼职的,业余的,非全日制的,其反义词是 full-time全职的

189.job 与work:job可数名词,指具体的固定或临时的“工作”;work不可数名词,没有复数形式,泛指“工作”.

190.pierce动词,刺穿,刺破;get their ears peirced

get sth done(sth动作承受者)=get sb to do sth请人做某事;have sth done=have sb do sth请人做某事;

191.license (licence)名词,执照;许可证; a driver’s license = a driving license驾驶执照;

a marriage license结婚证; a business license 营业执照; a student’s license学生证;

192.否定前移:在I think (believe,suppose,expect) 从句中,如果从句有否定含义,往往把从句的否定转移到主句.其后的反意疑问句与宾语从句的主语和谓语动词保持一致.如果主句有情态动词,就不是否定前移.

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