九年级第三课重点(上)

1、Unit3重点知识梳理重点知识梳理1.被动语态的构成被动语态的构成 由由“助动词助动词be 及物动词的过去分词及物动词的过去分词”构成构成 2.被动语态的用法被动语态的用法 当我们不知道谁是动作的执行者，当我们不知道谁是动作的执行者， 或者没有必要指出谁是动作的执行者，或者没有必要指出谁是动作的执行者， 或者只需强调动作的承受者时，要用被动语态。或者只需强调动作的承受者时，要用被动语态。3. allow sb. to do sth. 允许某人做某事（主动语态）允许某人做某事（主动语态） Mother allows me to watch TV every night. be allowed t

2、o do sth. 被允许做某事（被动语态）被允许做某事（被动语态） LiLy is allowed to go to Qinzhou. Unit3重点知识梳理重点知识梳理4. get their ears pierced 穿耳洞穿耳洞让让/使（别人）做某事使（别人）做某事 get sth. done(过去分词过去分词)=have sth. doneI get my car repaired. = I have my car repaired. 5. enough 足够足够形容词形容词enough 如：如：beautiful enough enough名词名词 如：如：enough foode

3、nough to do足够足够去做去做如：如：I have enough money to go to Beijing.She is old enough to go to school.Unit3重点知识梳理重点知识梳理6.stop doing sth.停止做某事停止做某事Please stop speaking. stop to do sth. 停止下来去做某事停止下来去做某事Please stop to speak. 7.看起来好像看起来好像sb. seems to do sth. = It seems that +从句从句 He seems to feel very sad. It s

4、eems that he feels very sad. Unit3重点知识梳理重点知识梳理8.倒装句倒装句: 由由so助动词助动词(be/do/will/have)/情态动词主语情态动词主语意为：意为：也是一样也是一样She is a student. So am I.She went to school just now. So did I . She has finished the work. So have I . She will go to school. So will he.由由Neither/Nor + be动词动词/助动词助动词/情态动词情态动词+主语主语(前为否定前为否

5、定) 表示与前面所述事实一致表示与前面所述事实一致.Tom cant swim. Neither can John.Unit3重点知识梳理重点知识梳理9. yet 仍然，还常用在否定句或疑问句当中仍然，还常用在否定句或疑问句当中 可与可与although/though连用连用10. stay up 熬夜如：熬夜如： I often stay up until 12:00pm. 11. clean up 打扫整理如：打扫整理如：I have cleaned up the bedroom. Unit3重点知识梳理重点知识梳理13. .be strict with+人人. be strict in+

6、事物事物.例例: The head teacher is strict with his students He is strict in the work.14. take the test 参加考试参加考试 pass the test 通过考试通过考试 fail a test 考试失败考试失败15. the other day前几天前几天,不久前的一天不久前的一天.(用于过去时用于过去时) every other day = every two days 每隔一天每隔一天 （每两天）（每两天）16. agree 同意反义词同意反义词 disagree不同意不同意 动词动词 agreemen

7、t 同意反义词同意反义词 disagreementUnit3重点知识梳理重点知识梳理17. keep sb/ sth. 形容词使某人形容词使某人/某物保持某物保持. We should keep our city clean. Dont keep me waiting for a long time.18. bothand+动词复数形式动词复数形式 如：如：Both Jim and Li Ming play bastketball.19. learn (sth.) from sb. 向谁学习向谁学习(什么什么)21. have an opportunity to do sth. 有机会做某事有

8、机会做某事 have a chance of doing sth. 有机会做某事有机会做某事22. at present 目前目前23. at least 最少最少 at most 最多最多Unit3重点知识梳理重点知识梳理25. have +时间段时间段+off 放假，休息放假，休息 如：如：have 2 days off off 不工作不工作,不上班不上班,不上学不上学,不值班不值班.例例: She is off today. 她今天休息她今天休息. They havent had a day off since last week. 26. reply to 答复某人答复某人 如：如：S

9、he replied to Mr Green.27. agree with sb 同意某人的意见同意某人的意见 如：如：I agree with you.Unit3重点知识梳理重点知识梳理28. get in the way of 碍事，妨碍碍事，妨碍 如：如： Her social life got in the way of her studies. 29. success (n.) succeed( v.) successful (adj.) successfully (adv.) 30. think about 与与think of 的区别的区别 当两者译为：当两者译为： 认为、想起、

10、记着时，两者可互用认为、想起、记着时，两者可互用 I often think about/ of that day. think about 还有还有“考虑考虑”之意之意 ， think of 想到、想出时两者不能互用想到、想出时两者不能互用 At last, he thought of a good idea. We are thinking about going Qinzhou. Unit3重点知识梳理重点知识梳理 31. 对对 热衷，热衷， 对对兴趣兴趣 be serious about doing 如：如：She is serious about dancing. be seriou

11、s about sth. 如：如：She is serious about him. 32. practice doing 练习做某事练习做某事 She often practice speaking English.33. care about sb. 关心某人关心某人 Mother often care about her son. Unit3重点知识梳理重点知识梳理35.allow sb to do sth 允许某人做允许某人做 allow doing sth 允许做允许做36.stupid silly foolish 三个词都有三个词都有“蠢蠢”的意思的意思.但略有不同但略有不同stu

12、pid 程度最强程度最强,指智力指智力 理解力理解力 学习能力差学习能力差. “蠢蠢”silly 指头脑简单指头脑简单,傻头傻脑傻头傻脑,使人觉得可笑使人觉得可笑,带有感情色彩带有感情色彩. “傻傻”foolish 尤其在口语中广泛使用尤其在口语中广泛使用. “笨笨”例例: He is stupid in learning math. Stop asking such silly questions. You are foolish to throw away such a good chance. Unit3重点知识梳理重点知识梳理37.He doesnt seem to have many

13、 friends. =It seems that he doesnt have many friends. =He seems not to have many friends.38.clean (v.) 打扫打扫,清理清理 clean up 比较彻底地打扫比较彻底地打扫,清理清理 clean out 打扫打扫,清理地最彻底清理地最彻底. Unit3重点知识梳理重点知识梳理39.concentrate on 全神贯注做全神贯注做例例: He decided to concentrate on physics because he failed the exam.40. morethan与其说与

14、其说不如说不如说; 比比更更例例: The man is more stupid than nervous. 与其说那人紧张与其说那人紧张,倒不如说他愚蠢倒不如说他愚蠢.在这一结构中在这一结构中,more做做adj. 修饰名词修饰名词,表示表示“比比多多”例例:I have more books than you. 我的书比你的多我的书比你的多.Unit3重点知识梳理重点知识梳理41.volunteer n. 自愿者自愿者. v. volunteer to do sth. 自愿做自愿做例例: We all volunteered to help in the old peoples home.42. get in the way (of). 妨碍妨碍.例例: He never gets in others way. 他从不妨碍别人他从不妨碍别人. The bikes over there will get in the way of others. Unit3重点知识梳理重点知识梳理44. only 处于句首处于句首,并后跟状语时并后跟状语时,全句需要倒装全句需要倒