八年级(下)Units4～6易混词语辨析
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1.be good at sth. (be good at doing sth.) ； do well in
be good at sth.(be good at doing sth.)意为“擅长做某事”。例如：
He is good at English.
他擅长英语。
I’m good at singing.
我擅长唱歌。
do well in意为“在……方面干得好”。例如：
She did better than I in math.
她在数学方面比我学得好。
2.above； over
这两个介词均可表示“在……上方”。当表示“在某物正上方”时，above和over可以互换。例如：
There is a light above/over the table.
在桌子的正上方有一盏灯。
They built a new room above/over the garage.
他们在车库上面加盖了一个房间。
但当不是表示在某物的正上方的“上方”时，不可以用over。例如：
We stayed at the hotel above the lake.
我们住在可以俯瞰湖泊的宾馆中。
3.bring； take； carry
这三个词都有“拿，带”的意思。
bring表示“带来”， 指把人或物从别处带到说话人所在的地方。例如：
Bring your brother here next time.
下次把你的弟弟带来。
take表示“带走”，指把人或物 从说话者所在的地方拿到别处。例如：
Please take the box to your home.
请把这个箱子拿回家。
carry有“携带、提、扛、抱、抬、载运”等多种意义，具有负重的含义，但不强调方向。例如：
Can you help me carry the box to the classroom?
你能帮我把这个箱子抬到教室吗？
The bag is too heavy. Let’s carry it together.
这个袋子太重了，我们一起来抬吧。
4. no longer； not... any longer； no more； not...any more
no longer 相当于 not...any longer，表示时间或距离的“不再……”。no longer往往位于行为动词之前，连系动词之后，常用于现在时态，而“not...any longer”结构中的any longer则位于句末。例如：
Jack no longer lives here.=Jack doesn’t live here any longer.
杰克不再住这里了。
Peter can’t stay here any longer.=Peter can no longer stay here.
彼得不再呆在这里了。
no more相当于not... any more, 表示数量和程度的“不再……”，一般指“今后不再”，故多用于将来时，其在句中的位置与no longer相同。例如：
Han Mei will no more come here.= Han Mei won’t come here any more.
韩梅将不再来这儿了。
We shall not go there any more. =We shall no more go there.
我们将不再去那里。
5. happen； take place
两者都有“发生”的意思，都是不及物动词，都不能变为被动语态。它们的区别如下：
happen通常用于描述意外发生的事件，主语往往是表示事件、事故的名词或代词。例如：
The road accident happened under my eyes.
我亲眼目睹了这场交通事故。
New things are happening all around us.
我们身边总有新事情发生。
take place表示“发生；举行”之意时，常指某事件是按意图或计划“发生”的，不含偶然的意味。例如：
When did the popular concert take place?
那场流行音乐会是什么时候开始的？
Their wedding will take place on Sunday.
他们的婚礼将于星期天举行。
在不强调偶然性与计划性的场合，两者可以通用。例如：
What has happened / taken place?
发生了什么？
6. have been in； have been to
have been in表示“一直呆在某个地方”，常与表示一段时间的状语连用。例如：
They have been in Beijing for two weeks.
他们在北京已经有两个星期了。
How long have you been in this city?
你在这个城市呆多久了？
have been to表示某人“去过某地，现在已经回来了”。例如：
Have you ever been to Shanghai?
你曾经去过上海吗？
He has been to America twice.
他去过美国两次。
7. since； for
两者都可用作介词，经常用于含有完成时的句子里，for后面的宾语是一段时间，而since则跟过去某一时间点。试比较：
I have been teaching for twenty years in this school.
我已在这所学校任教20年了。
I’ve been skating since I was six years old.
从6岁起我就开始溜冰了。
注意：for和since引导的时间状语在完成时的句子中不能与终止性动词的肯定式连用。试译：
他入团两年了。
误：He has joined the Youth League for two years.
正：He has been a League member for two years.
正：He has been a League member since two years ago.
【即时练习】
选择最佳答案填空。
1. Her father is a math teacher and she ____ math.
A. is good to B. does well in
C. is good for D. does good to
2. In English， she’s _____ writing than listening.
A. better at B. better in
C. good at D. best in
3. Please ____ away the water and ____ me a cup of tea.
A. bring； bring B. take； take
C. take； bring D. bring； take
4. My sister won’t work for him _____.
A. no moreB. some more
C. any more D. much more
5. There is a plant ____ us.
A. at B. on C. above D. up
6. ―____will you stay in Shenzhen for your holiday?
―For about two weeks.
A. How often B. How long
C. How soon D. What time
7. They have been in this city ____ three years ago.
A. for B. about C. in D. since
8. Great changes have _____ in the village since 1996.
A. happened
B. been happening
C. been taking place
D. taken place
9. The sports meeting will _____ next week.
A. happenedB. taken place
C. happen D. take place
10. ―So far， how long ______ you ______ China?
―For one year.
A. have； come to B. have； been to
C. have； been in D. have； gone to
11. ―Will you watch the World Cup match this year?
―No， but I ______ several World Cup matches since I was a small child.
A. had seen B. see
C. was seeing D. have seen
12. My uncle has been in Beijing on business _______ three months. He will be back _______ three days.
A. for； for B. since； for
C. for； in D. since； in
Keys：1. B 2.A 3. C 4.C 5. C 6. B 7. D 8.D 9.D 10. C. 11. D. 12. C