4. _____H1N1 flu from spreading, our government has taken some effective measures.

A. Prevent　　　　　　 B. Preventing

C. Prevented　　　　　 D. To prevent

[解析]选D。考查非谓语动词。此处用不定式作状语表示目的，分词作状语一般不表示目的。

3. Every day, after work, he will___himself to a glass of wine to help him relax.

A. provide　　　　　 B. devote　　　　　 C. contribute　　　　 D. treat

[解析]选D。考查动词词义辨析。句意为：每天下班后，他都用一杯酒款待自己以使自己放松。treat sb. to. . . 以……款待某人; provide sb. with sth. 提供某人某物; devote oneself to致力于; contribute to有助于，促进。

2. I think it is your husband who___for the spoiled child.

A. is to blame　　　　 B. is going to blame

C. is to be blamed　 D. should blame

[解析]选A。考查blame的用法。be to blame属固定短语，意为：应受责备。

1. Eating too much fat can____to heart disease and high blood pressure.

A. turn　　　　 B. attend　　　　　 C. contribute　　　　　 D. result

[解析]选C。考查词组搭配及意义。turn to求助于；attend to处理；contribute to促进；result与in搭配，表示“导致”。句意为：吃太多的含脂肪的食物能导致心脏疾病和高血压，故C项正确。

5. The child who is swimming in the river is my brother.

The child swimming in the river is my brother.

4. With winter approaching, it becomes colder.

The approach of winter brings cold weather.

3. Several companies are competing with each other for the contract.

Several companies are in competition with each other for the contract.

2. A medical team which is made up of ten nurses and five doctors has been sent to the front.

A medical team consisting of ten nurses and five doctors has been sent to the front.

1. The actor is very humorous.

The actor has a good sense of humor.

8. She looks forward every spring to enjoying (enjoy)the flowers in the mountains with her parents.