课堂练习

I. 根据下列各句句意及所给单词的首字母或汉语提示，写出所缺单词的正确形式。

1. Most graduates nowadays prefer to find a p_____ job rather than a temporary one.

2. A businesswoman d_____ one million dollars to the charity.

3. I bought a model of the Eiffel Tower as a s_____ of Paris.

4. Language is a social and cultural _____ (现象).

5. The noise made by planes flying _____ (头顶上) can do harm to our hearing.

6. The mountains acted as a natural _____ (屏障) to the spread of the disease.

II. 根据句意用括号内所给单词的适当形式填空。

1. The _____ (explore) for new sources of energy is important for the future of our planet.

2. The tomatoes quickly _____ (ripe) in the hot weather.

3. She was bitten on the ankle by a _____ (poison) snake.

4. Many factors have influenced American pronunciation since the first _____ (settle) arrived four hundred years ago.

5. Weather _____ (permit), we're going to the beach this weekend.

III. 根据句意选用所给短语的适当形式填空。

　　defend ... against; drop in on; kick off; drop off; make headlines; in case;

　　end with; a stepping stone; in all four corners of the globe

1. What has _____ this year is the issue of food safety.

2. It is cloudy. Take an umbrella with you _____ it rains.

3. The shows _____ at 8:00 on October 24th, 2007.

4. Despite its high price, the demand for this goods shows no sign of _____.

5. I _____ my first English teacher when I returned home last month.

6. The wedding ceremony will _____ a dancing party.

7. It is soldiers' duty to _____ their motherland _____ enemies' attack.

8. The courses in universities will be _____ to your future career.

9. Because it is universal, it doesn't just apply in London. It applies in every big city