广州牛津版9年级英语下unit3单词语法讲解.doc
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Unit3
讲课内容:1、重点词(aid、replace、plain、reform、approach、decrease、status、matching)
2、重点短语、句型、句子讲解(bring along / )
3、语法:时态
一、重点词:
aid(比help正式) 教材P34.1.3
1) vt. 帮助;资助;救助;促进aid sb. in /with… 在……方面帮助某人
e.g. He aided me in the work. / I aided the poor girl with money.
②aid sb. to do…帮助某人做……
I aided her to continue her study.
2) n.【C.】 帮助,外援,辅助设备
2、replace 教材P34.4.3
n. replacement更换;替代品 adj. Replaceable可替换的,可代替的
vt.替换;代替;把……放回原位;(用……)替换John will replace him as manager. 代替
replace the phone 挂电话,把电话放回原处
常用句型:
①Replace sb. /sth, (with / by sb. / sth. ) 取代某人/某事/(用/以某人/某事)
e.g. It’s not a good idea to miss meals and replace them with snacks.不吃正餐,改吃点心,这不是什么好主意。
e.g. replace a corner by a plane0. 截去角十成平角
3、plain 教材P34.5.5
1)adj.清楚的,明显的;坦诚的,直接的;朴素简约的,素色的,无花纹的;平庸的,平凡的
2)n.平原
常用句型:
①the plain facts is that-clause 事实很明显……
e.g. The plain fact is that nobody really knows. 事实很明显,没有人真正了解。
②Plain speaking 说话直率的
e.g. A man with a reputation for for plain speaking. 一个说话直率出了名的人
③(as) plain as the nose on your face / (as) plain as day 一目了然;一清二楚;显而易见
4、reform 教材P36.3.3
V. n. 改革,改良,改进;改造(行为),(使)改正,(使)悔改 adj. reformed
① e.g. The law need to be reformed. 法律需要进行改革。
e.g. He has promised to reform. 他许诺要改过自新。
② a reformed character / alcoholic 改过自新的人 / 酒鬼
5、approach 教材P36.1.6
①vt. vi.接近,走近,靠近e.g. He didnt approach the front door at once
②n.方法;途径;接近n approach to ……的一种途径,……一种方法
e.g. The school has decided to adopt a different approach to discipline. 学校决定采取另一种方式解决纪律问题。
decrease 教材P36.2.3
1)vi.vt.(使)减少,减小
①decrease by...... 减少......(by后接减少的量)
e.g. The number of students has decreased by 500. 学生人数减少了500名。
2)n.【C】减少,减小;减少量 decrease in / of sth. ......减少了,降低了。
e.g. a decrease in the number of young people out of work.失业人数下降了
e.g. a decrease of 40 per cent. 降低了40%
②on
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