重點(diǎn)單詞、詞組詳講

1. astronomer: n天文學(xué)家；astronomy: n天文學(xué)

2.explode: v爆炸,由此聯(lián)想：explosive: a爆炸性的/n炸藥；explosion: n爆炸1). When the bomb______, many people were seriously wounded.

2). The unexpected ________ frightened the little girl.

3). It might be possible to convert _____ energy into heat.

Answers: exploded, explosion, explosive

3. density: n密度；聯(lián)想產(chǎn)生：dense: a密度大的，反義詞：sparse;

densely: ad高密度地；densely-populated人口稠密的；sparsely-populated人口稀疏的1). The ____ fog kept the travelers from finding the correct direction.

2). The business area of the city is _____ populated.

3). This liquid has a much greater ____ than water.

Answers: dense, densely, density

4. shrink: v收縮、退縮、縮水

1). As a result of careless washing, the jacket has shrunk to a child's size.

2).The girl shrinks at the sight of blood.

5. measurement: n衡量、測(cè)量；

由此聯(lián)想：measure: n措施/v衡量、測(cè)量；measurable: a可衡量的，可測(cè)量的

1). We must take _____ to protect our environment.

2). We have come within ______ distance of success.

3). Clocks give us a ______ of time.

4). There the rainfall is ______ not in inches but in feet.

Answers: measures, measurable, measurement, measured

6.implication: n含義、暗示；imply: v暗示

7. basis: n基礎(chǔ)、根據(jù)，

由此可以聯(lián)想得到：base: n底部；v以…為底，為根據(jù)；basic: a基礎(chǔ)的，根本的；

basically: ad根本上來(lái)說(shuō),

1). If you want to improve your English, you must have a solid ______.

2). The furniture of out dorm is really _____: two beds, two chairs and tables.

3). The charges are false for they are not ______ on proven facts.

4). Since no better plan can be worked out, we have to adopt the ____ workable one.

Answers: basis, basic, based, basically

8. observatory: n天文臺(tái)；由此可以聯(lián)想得到：

observe: v觀察；observation: n觀察；observer: n觀察家

9. convincing: a有說(shuō)服力的，使人信服的；convince: v使人信服；convinced: a感到有說(shuō)服力的，常見(jiàn)搭配：convince sb of sth; convince sb that

1). He gave us a convincing speech.

2). He convinced me f his sincerity.

10. operate: v運(yùn)轉(zhuǎn)、操作、動(dòng)手術(shù)；operation : n手術(shù)，操作；operator:操作者

11. research into對(duì)…進(jìn)行研究

She is researching into possible cures for AIDS.

12. swallow up:吞沒(méi)、耗盡

Many small businesses have been swallowed up by large companies.

13. apply to sb/sth：適用于某人/某事，請(qǐng)對(duì)比：

apply to sb for sth向某人申請(qǐng)某事；apply A to B將 A應(yīng)用于 B

1). You should apply what you have learned to your work.

2). I applied to him for a new job.

3). The study method doesn't apply to everyone