题目列表(包括答案和解析)

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5. react 反应

react to 对……做出反应

react with 和…起化学反应

react on 对…影响

react against 反抗;反对

reaction  n. 反应;感应;反作用;反动

reactive adj. 反应的;反动的

reactor  n. 起反应的(人或物); 反应器

句型的拓展与延伸

1 Simply raise your hand ,and a taxi appears in no time .只要你招招手,出租车就来。

 句型“祈使句+and +陈述句”和“祈使句+or(else) +陈述句”中的祈使句相当于一个条件状语从句。

做做看:

1)Set your alarm clock ,_____you won’t oversleep.

    A and  B but  C so  D nor

2) Give him some food,____ he’ll starve.

    A as  B while  C or  D neither (Key: 1)A 2)C )

2 Tricycles are worth using if you want to explore the narrow alleys of old Beijing .

  如果想去老北京的胡同探秘,三轮脚踏车是值得一坐的。

 worth 与worthy 的辨析

worth  adj 意为“值…钱; 值得….通常不作前置定语;构成句式: worth + 名词/代词/Ving。

worthy  adj 意为“有价值的;值得敬重的;常做前置定语;

构成句式:worthy + of sth /of being done /to be done

选词填空:worth /worthy

1) There are only two things _____ reading in this newspaper ---the TV listings and the sports page.

2)   Two points in this report are especially ______ of notice .

3)  First prize in the competition was designer clothes _______ several thousand pounds.

Key:1) worth 2 )worthy 3) worth

3  Leave motor on .开着发动机。

 leave 在此用作使役动词,后接复合宾语。构成句型:

leave + 名词/代词+形容词/副词/名词/介词短语/ving/pp /to do sth

做做看:

1) .Her parents __________________(让她选择自己的朋友)even when she was young .

2).__________________( 不要让他等)outside in the rain .

3).___________________( 开着门);we need some fresh air in the house .

4). I’ll have to go back ---- I think I’ve ___________________( 没关电熨斗)。

Key:1) left her to choose her own friends   2 ) leave him waiting

   3 )Leave the door open        4)  left the iron on

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4. explore vi. /vt.  勘探;勘察;考察;调查研究;探索;探讨

 exploration  探索;勘探;考察;钻研

 explorer  n.  探险者;考察者;探险者

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3. convenient for sb /sth 方便某人/某事

It’s convenient to do sth 方便做某事

sth is convenient to do sth方便做某事

convenient for / to sth 离…近便

conveniently adv 方便的

convenience  n. 方便

inconvenient adj. 不方便的

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2. provide 提供

provide sth for sb / provide sb with sth 为某人提供某物

provide for sb 供应某人所需

provide for sth  为某事做好准备

provide that ( 法律、 规章、协议)规定……

provide against 预防;防备

provided that 如果、假如

provider  n. 供应者

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 词的拓展与延伸

1. limit 限制

limit sth to ……把…. 限制在。。。。

be limited to ……限于…….

within limits 在一定程度上; 有一定的限制

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1.__________________________________________________.

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2. ---Alice, you feed the bird today, ________ you?

 ---- But I fed it yesterday.

 A do  B didn’t  C will  D don’t

用以上语法结构造句。

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1. Try adding more sugar, _________you’ll like it .

 A or  B and   C while   D nor

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5.__________________________________________________.

语法 (复习祈使句)

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4.__________________________________________________.

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