生长激素的促生长作用依赖于A．肾上腺髓质激素介导B．生长激素介质的介导C．糖皮质激素的介导D．甲状

Which ofthe following statements is correct？

A．Energy from coal would not pollute our living environment．

B．Energy from natural gas would not pollute our living environment．

C．Energy from the sun would not pollute our living environment．

D．Energy from oil would not pollute our living environment．

(natural) ______ speaking, living in city is more expensive than in village.

Our decision rests on the results of several experiments.()

A language is not a natural and living language unless ______.

A．it is invented

B．it is changing

C．it has a complex language system

D．it can be used naturally

About two thirds of our population ______ in the countryside.

A．are still living B．is still living

C．were still living D．was still living

"Are there living things in space？" " ______."

A．We have already got an answer to this question

B．We will never get an answer to this question

C．We got an answer to this question long ago

D．We may get an answer to this question in the next few years

SECTION A COMPOSITION (35 MIN)

With the improvement of our living standard, people are more concerned with their health than ever. So now you can see many people take vitamin pills to keep healthy. State your ideas on the advantages and disadvantages of taking vitamin pills for health.

Write on ANSWER SHEET TWO a composition of about 200 words on the following topic:

Advantages and Disadvantages of Vitamin Pills for Health

You are to write in three parts:

In the first part, state your point of view clearly.

In the second part, support your view with details.

In the last part, bring what you have written to a natural conclusion or a summary.

Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.

Our living standard is still very low, but we are ______ living in poverty.

A．by all means

B．by no means

C．by every means

D．by means of

Researchers state that ______.

A．larger families are more efficient in consuming natural resources than smaller families

B．both larger and smaller families need the same amounts of natural resources

C．smaller families are more extravagant in living

D．larger families are more frugal in living

thought it over, and the thing is, we made technology. It is only an expression of our humanity, so its wrong to think of it as something given to us by aliens—and then we can blame technology, not ourselves, when something goes wrong. The question that was really asked was, "Are humans going to kill themselves？" The answer would be the exact same answer that would be given 10 years ago, 2,000 years ago or 1,000 years in the future. We re still around, so the answer is no, we re not, but this still doesnt change the fact that were now stuck living inside the future where were stuck worrying about this question for all of our waking hours.