九年级英语上册重要知识点汇总

更新于:2021年03月03日 初中学习方法 > 学习方法 > 初三学习方法 > 九年级英语 >

  You can have fun now since you’ve finished your work.

  既然你已经做完了功课,就开心玩会儿吧。

  (2) for用于完成时,用作介词,后常接一段时间,意思是“经过…”。

  I have learned English for five years.我已经学了五年英语了。

  They have waited for you for 30 minutes.他们已经等了你三十分钟了。

  for也可以用作连词,但意思是“因为”。

  They missed the flight for they were late.他们由于完到了而误了航班。

  He fell ill for many reasons.他由于多种原因病倒了。

  5. neither/ either/ both

  (1) neither作代词是对两者都进行否定,意思为“两者都不”,作主语时谓语动词用单数.

  Neither of the boys is from England.这两个男孩都不是来自英国。

  I know neither of them. 他们两个我都不认识。

  neither用作形容词,也修饰单数名词,意思与作代词时相同;用作连词时,一般与nor搭配,表示 “既不…也不”。作主语时,谓语动词也遵循就近原则。

  She neither ate nor drank yesterday. 她昨天既不吃也不喝。

  Neither he nor we play football on Sundays. 他和我们星期天都不踢球。

  (2) either作代词时,是指两者中的任意一方,(两者之)每一个,故作主语时谓语动词用单数.

  Either of the books is new.这两本书任何一本都是新的.

  She doesn’t like either of the films.这两部电影她都不喜欢.

  either作形容词, 用来修饰单数名词,意思与作介词时相同.

  Either school is near my home. (这两所学校中的)任何一所学校都离我家很近.

  Either question is difficult.两个问题(中的任何一个)都难.

  either作连词时,一般与or搭配,表示两者选其一,意思是“不是…就是”。作主语时,谓语动词遵循就近原则。

  Either he or I am right.不是他就是我是对的。

  Either my sister or my parents are coming to see me.不是我姐姐就是我父母要来看我。

  (3) both作代词时,指的是所涉及到的“两者都”, 故作主语时,谓语动词用复数形式。

  I like both of the stories.这两个故事我都喜欢. Both of my parents are teachers.我父母两人都是老师。

  both作形容词时,用来修饰两者,意思与作代词时相同.

  Both his arms are hurt.他的两只胳膊都受伤了。 Both these students are good at English. 这两个学生都擅长英语。

  both用作连词时,多与and搭配,表示“既…又, 不仅…而且”, 作主语时,谓语动词仍用复数形式。

  Both piano and violin are my bobbies.钢琴和小提琴都是我的爱好。

  They study both history and physics. 他们既学历史,又学物理。

  6. find/look for/ find out

  (1) find强调找的结果,意思是“找到”。此外还有“发现,发觉”的意思,后可接宾语从句。

  Jim couldn’t find his hat.吉姆找不着帽子了。Have you found your lost keys? 你找到丢失的钥匙了吗?

  He found the lights were on along the street.他发现沿街的灯都亮了

  (2) look for的意思为“寻找”,指的是找的动作而非结果。另外,还有“盼望,期待”的意思。

  She is looking for her son.她正在找她的儿子。

  We’ve been looking for the car since early this morning.我们从今天一大早就开始找这辆车了。

  I look for the coming holiday.我期待着即将来临的假期。

  (3) find out含有经过观察、研究或探索而得知的意思,后常接较抽象的事物,意思是“找出,发现,查明(真相)”等。 I can find out who took my money away.我能查出谁拿了我的钱。

  Could you find out when the plane arrives? 你能设法知道飞机何时到吗?

  7. forget to do/ forget doing

  (1) forget to do是指忘记去做某件事了,即该事还没有做。

  Please don’t forget to call this afternoon.今天下午不要忘了给我打电话。

  I forgot to take some small change with me.我身上忘了带零钱了。

  (2) forget doing是指忘记某件已经做过的事情,即该事已经做了,但被忘记了。

  He forgot telling me his address.他忘了告诉过我地址了。

  They forgot having been here before.他们忘了以前曾来过这儿。

  8. stop doing/ stop to do

  (1) stop doing是指停止做某事,即doing这个动作不再继续。

  They stopped debating.他们停止了辩论。(不辩论了)

  He had to stop driving as the traffic lights changed in to red. 由于交通灯变成了红色,他不得不停车。

  (2) stop to do是指停下来开始做另一件事,即停止原先的事,开始做do这个动作。

  She stopped to have a rest.她停下来休息会儿。(开始休息)

  They stopped to talk.他们停下来开始交谈。

  9. except/ besides

  (1) except是指不包括后面所提人或物在内的“除了”,可以理解为“撇开…不谈”,表示两部分的不同。

  Everyone is excited except me.

  除我以外的每个人都很激动。(他们激动,而我却不激动)

  All the visitors are Japanese except him.

  除他以外的所有游客都是日本人。(其他人是日本人,可他不是)

  (2)besides是包括后面所提人或物在内的“除了”,可以理解为“除之外…还、除之外…又”,表示两部分

  的相似性。

  Twenty-five students went to the cinema besides him.

  除他以外,还有25个学生去

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