2．用表示“减少的动词(decrease, reduce, fall, lower等)连接“by n times ,“n times ,“n times as + 形容词或副词+as .“by a ——青夏教育精英家教网—

2．用表示“减少的动词(decrease, reduce, fall, lower等)连接“by n times ,“n times ,“n times as + 形容词或副词+as .“by a factor of n 等.均可译作“减少了n分之(n-1) 或“减少到n分之1 . 因为英汉语言在使用分数方面的差异(如汉语的分母中极少使用小数点).如果英语减少的倍数中有小数点时.则应换算成分数. The enterprise management expenditure this year has decreased by three times as against that of 2002. 该企业今年的行政管理开支比2002年降低了2/3. The principal advantage is a four fold reduction in volume. 主要优点是体积缩小了3/4. The error probability of the equipment was reduced by 2.5 times through technical innovation. 通过技术革新该设备误差概率降低3/5. 【查看更多】

写作。

妈妈想买一本书 "How to be a Successful Parent"。可是她最近太忙了没时间去书店。你知道网上卖书不但省时间还便宜，所以你教妈妈上网买。现在把你教的步骤简要写下来。用表示顺序的连接词，不要列数字。（60字左右）
1. double click Internet Explorer
2. go to the website - http: //www.dangdang.com/
3. type "How to be a Successful Parent" in the box
4. click "search"
5. click to put it in the shopping basket
6. pay for it online
Here are the steps of buying the book on-line. __________________________________________________________________________________________________________________________________________________

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根据短文内容，用括号内的动词的正确时态形式填空。
I 【小题1】__________(have) a friend , her name is Linda . She is a 14-year-old girl .And she 【小题2】__________(be) from England .She 【小题3】________ (have) long hair. She likes 【小题4】___________(watch) TV, listening to music , and so on. She has many good 【小题5】__________ (friend) in China now .She loves China very much .

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根据短文内容，用括号内的动词的正确时态形式填空。
I 【小题1】__________(have) a friend , her name is Linda . She is a 14-year-old girl .And she 【小题2】__________(be) from England .She 【小题3】________ (have) long hair. She likes 【小题4】___________(watch) TV, listening to music , and so on. She has many good 【小题5】__________ (friend) in China now .She loves China very much .

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用表示“看”的单词或短语填空，注意形式正确。

1. Li Lei often _____ TV.
2. Miss Wang likes _____ books.
3. _________! Someone is dancing on the playground.
4. The old man often _______ football matches.
5. I _________ the blackboard, but I can't ______ any words on it.
6. What magazine do you _______?
7 _____ the picture on the wall.
8. ____! Here comes the bus.

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用所给的动词的适当形式填空（必要时可加助动词或情态动词）。

1．The students are having fun _________（ride）their bikes on the playground．

2．-- _________ I _________（use）your computer?

--Yes，you can．

3．Lisa _________（sweep）the floor at the moment．

4．It was very late．We stopped _________（work）and went home．

5．_________（not feed）the animals．Uncle Wang fed them five minutes ago．

6．_________（move）to Qingdao after I finish high school in 2012．

7．Arthur is trying _________（save）money for a new bicycle．

8．Do I have _________（clean）the living room?

9．_________ she（tour）the USA when she was fourteen?

10．_________（be）there any seals in the aquarium last weekend?

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