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8B Unit 1 重点词组句1

发布时间:2014-01-24 09:09:17  

8B Unit 1 重点词组句型

一.短语

2. transport at different times 在不同的时代的交通

阳光城的变化

5. get married/been married to? 结婚/已经结婚?

6. move house 搬家

7. move to another flat 搬到另外一所公寓

8. move out of the city 搬出这所城市

9. move to other areas in Beijing 搬到北京的其他地区

10. change a lot 改变很多

11. turn into a park 变成公园

12. in the past 在过去

他的过去和现在 (now adv./present n.)

14. at present 在现在

15. know the city very well 对这所城市非常了解

在镇的南部

18. over the years 在(过去的) 这些年里

19. over the past century 在过去的一个世纪里(centuries 复数)

20. play cards and Chinese chess 打牌,下中国象棋

21. a steel factory 一家钢铁厂 (factories复数)

22. used to do/used to be 过去常常做 / 过去是

23. be/ get used to doing sth. / sth. 习惯于做某事/ 某事

24. all one’s life 某人的一生

25. keep in tough 保持联系 / be out of tough 失去联系

26. realize it is/was a serious problem 意识到它是一个严重的问题

27. communicate with ???? 和。。。。交流

28. take action(s) to improve…… 采取措施改善。。。。

29. much cleaner 干净得多

30. in some ways 在某些方面

31. open space 开阔的空间

32. become more difficult 变得更困难

33. feel a bit lonely 感觉有点孤单

34. from time to time/at times / sometimes 不时,有时候

35. have an interview with sb. == interview sb. 对某人进行采访/访问

36. as often as before 与以前一样经常

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2

现在完成时态

一、掌握结构:助动词have/has + 动词的过去分词

二、掌握用法:

1.表示过去发生的某一动作对现在造成的影响或结果,常与一些时间状语,

如:already, yet, ever, never, just, before, once(一次), twice (两次)so far,等连用,也可以和包括现在在内的时间状语,如these days, today, recently, this year, so far(=by now /up to now, ) 等连用.

2.表示过去发生的动作或存在的状态,一直持续到现在,也许还将继续下去,可以和表示从过去某一时刻延续到现在的一段时间的状语连用,即for +时间段,since+时间点/从句, in(during) the last(past) ten years在(过去的十年里)等,谓语只可用延续性动词. 还可以和包括现在在内(到说话时仍未结束)表示一段时间的状语连用,如:now, today, this morning (afternoon, evening, week, month, year), these days, 等.

我们知道英语动词根据词义可分为两种,一种是延续性的,一种是终止性的,终止性动词(也可称为非延续性动词,瞬间动词,或短暂性动词),如begin, start, die, buy, leave, come等,表示动作在一瞬间之内就能完成,不能再延续,所以它的现在完成时不能和表示延续的时间状语连用,即不能与表示一段时间的状语,for+段时间,since+点时间/从句连用,也不能用在how long引导的特殊疑问句中.(但在否定句中短暂性动词可以与for和since短语连用。)

e.g. They've left London for five days.(×)

They've been away from London for five days.( √ ).

They left London five days ago. ( √ )

It is /has been five days since they left London.( √ )

三、掌握短暂性动词如何转换成延续性动词

常见短暂性动词与延续性动词的对应关系如下:

come/go/arrive/get/reach/move------be in/at open-----be open

die------be dead close----be closed become---be

borrow---keep begin/start-----be on put on----wear

leave----be away (from) buy-----have fall asleep(ill)----be asleep(ill) end/finish-----be over catch a cold-----have a cold

join the army----be in the army/ be a soldier

join the Party----be in the Party/ be a Party member

get to do ---do (get to know---know) get married -----be married

get up ---be up begin to do ------do (begin to study-----study)

→My brother has been in the army for two years.

→My brother has been a soldier for two years.

三、掌握现在完成时中been to, gone to和been in/at /on 的区别

been to曾经去过某地,表示某人的一种经历,可以和次数, already, ever , never等连用.

e.g. She has been to Nanjing twice. (表示目前人在说话的原地))

gone to 已经去某地了,说话时某人已离开此地,在去某地的途中或已经到达某地,常和already, Where’s\ Where are……? 连用。

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e.g. Where’s Kate? She has gone to library. (表示现在她人不在这里)

been in/at/on已经在某地逗留了一段时间,常和for 短语,since 短语等连用,或用在how long 问句之中。.

e.g. She has been in Nanjing since she came there.

四、.掌握现在完成时和一般过去时的区别

(1)、现在完成时所表明的是过去发生的动作对现在的影响,强调的是现在的情况,不可以和表示过去的时间状语yesterday, in 1997,three days ago ,last time, last night等连用.

(2)、一般过去时只指过去发生的事情,和现在没有关系

(3)、主语做过某事常用现在完成时态,但如果强调动作发生的时间(when)、地点(where)、方式(how)、目的(what for)、原因(why)等常用过去时态。 e.g. A: Have you seen the film called Titanic? B: Yes, I have.

A: When did you see it ? B: Last Saturday.

(4)、 just 常是现在完成时的时间状语

just now =a moment ago 过去时态的时间状语

五、掌握现在完成时中 for 与 since的区别

for + 段时间,常与延续性动词的现在完成时连用

since 四种用法:1).+过去的点时间 since last night

2).+一段时间+ago since two years ago

3).+从句(用过去时态) since they came to China

4).It’s (has been) +一段时间+since 从句

I have kept the library book for a week. = I have kept the library book since a week ago.

六、掌握用于现在完成时态的三个句型

1) .It is /has been +一段时间 + since 从句.自从某事发生已有一段时间了. e.g. It is /has been two years since my brother joined the army.

2). It/This/That is the first (second….) time that +从句(现在完成时态) e.g. This is the second time that I have played Chinese chess with him .

3).主语+be+形容词最高级+名词+that 从句(现在完成时态)

e.g. He is the tallest man that I have ever seen in my life.

=I have never seen such a tall man in my life .

七、注意:have got, has got 虽然是现在完成时的形式,但have got=have

has got=has got 中文意思为“有”

练习题:

1.It's a long time since we ____ (meet) last time , isn't it ?

2.--I know you ___________ (buy) a picture book . --Yes, Have a look at it, please

3.So far, we ___________ (plant) many thousands of trees.

( )4.My cousin ____ home for nearly three weeks.

A. has left B. has gone away from C. has been away from D. went away

( )5.Mr and Mrs Green have _____in Japan for a week.

A. been B. got C. arrived D. reached

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