—Can we please get a new air conditioner for our bedroom?　　—

23． We-d better read in the morning because________ ．

A．it is difficult to get good results

B． the air is fresh and our minds are clear

C．it is easy to remember what we have learned

D． both B and C

25．In studying ，we must always ask "whys" in order to ________．

A． understand the book well

B． get some questions to ask our teachers

C． do with the new words

D． write down the questions

29． When it thunders, we always see the light before we hear the sound．______ It’s because

A． our eyes are in front of our ears

B． our eyes are cleverer than our ears

C． our eyes can see but our ears can-t

D．light goes faster than sound

() please find a price list of our new products.

A、Enclosing

B、Enclose

C、Enclosed

D、Encloses

In Leon Nacson’s view, air and water are our Number One priorities for the following reasons except ().

A、he cannot understand why people are polluting air and water

B、there will definitely be no fresh air and clean water for future generations

C、we would run out of air and water if we didn’t stop polluting them

D、air and water polluting are the current and futu

24．1f we can-t put our hearts into the book when we read，it is___________'

A． possible to learn something from it

B． easy to understand it well

C． impossible for us to get something from it

D． hard to get something from it

Passage Three

How can we get rid of garbage.9 Do we have enough energy sources to meet our future energy needs?

These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the time it can save the land to hold garbage.

For a long time, people buried garbage or dumped it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil fuels. As we use up our fossil-fuel supplies, we might be able to use garbage as an energy source. Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil.

Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs.

44. What two problems can man solve by burning garbage?

A. The shortage of energy and air pollution.

B. The shortage of energy and the land to hold garbage.

C. Air pollution and the shortage of fossil fuel.

D. Air pollution and the shortage of land to hold garbage.

A

The aim(目的) of students who come to school is ro srudy． But if we haven't a right way to study we will waste the time or the money． The following are ways for studying．

The best time for reading js morning． Because in the morning， the air is fresh and our minds are clear．For that reason，we can get good results．

Jt- studying we must be'patient(耐心的)． If w．e don't understand a text well，we must read it again． We should not read the next one till we have learned the first one well．

When we are studying，we must put our hearts into the book． We can not read absent-．mindedly(心不在焉地) ，or we can get nothing from the book while we are reading．

We must always ask "whys"． If it is not well understood，write it down and ask our teach-ers or parents，brothers or friends，in any possible way． We must know it completely and then our knowledge can be used well．

Though there are many ways for studying，however，the above mentioned(提及的) will be quite enough if we can keep them in heart and do so，

( )21． The article tells us_________

A． to read in the morning

B． to pay close attention to ways for studying

C． the importance of reading

D． to have patience in studying

Upon departure, please switch off / turn off the air-conditioner. (英译汉)

A、Enclose please find

B、We are enclosed

C、WE enclose

D、Enclosing please find