I don’t mind picking up your things from the store. _________ the walk will do me good.

A. Sooner or later        B. Still                     C. In time         D. Besides

A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover，these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns，potentially causing certain natural disasters all over the world.

In the past hundred years，humans have begun destroying rainforests in search of three major resources（资源）：land for crops，wood for paper and other products，land for raising farm animals. This action affects the environment as a whole. For example，a lot of carbon dioxide（二氧化碳）in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.There are two main reasons for this. Firstly，when people cut down trees，generally they can only use the land for a year or two. Secondly，cutting large sections of rainforests may provide a good supply of wood right now，but in the long run it actually reduces the world’s wood supply.

Rainforests are often called the world’s drug store. More than 25％ of the medicines we use today come from plants in rainforests. However，fewer than l％of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.

Rainforests can help to adjust the climate because they      

A. reflect more heat into the atmosphere

B. bring about high rainfall throughout the world

C. rarely cause the temperature to drop lower than l6℃

D. reduce the effect of heat from the sun on the earth

What does the word “this” underlined in the third paragraph refer to?

A. We will lose much more than we can gain.

B. Humans have begun destroying rainforests.

C. People have a strong desire for resources.

D. Much carbon dioxide comes from burning rainforests.

It can be inferred from the text that

A. we can get enough resources without rainforests

B. there is great medicine potential in rainforests

C. we will grow fewer kinds of crops in the gained land

D. the level of annual rainfall affects wind patterns

What might be the best title for the text?

A. How to Save Rainforests

B. How to Protect Nature

C. Rainforests and the Environment

D. Rainforests and Medical Development

--- Would you be _____ lend me your bicycle?

    --- Sure.

    A. so kind as to           B. kind enough as to

    C. very kind to            D. so kind to

As I will be away for at least a year, I’d appreciate _____ from you now and then so that I can know how everyone is getting along.

    A. having heard               B. to hear 

    C. hearing                    D. being heard

--- Excuse me, sir. Would you do me a favour?

    --- Of course. What is it?

  　--- I ______ if you could take me to the station.

  　A. would wonder               B. did wonder     

  　C. was wondering              D. had wondered

--- Did he notice you enter the room?

    --- I don’t think so. He ______ to the radio with his eyes shut.

    A. listened                 B. was listening

    C. has listened             D. had listened

When he was a boy, he used to go there and watch _____.

   A. to repair bicycles     

   B. bicycles to be repaired

 　C. bicycles being repaired 

   D. repairing bicycles

Which do you prefer to____ your weekends, playing computer games or watching TV ?

     A．spending               B．to spend                          C．being spent         D．spend

At the______ of the century, Shanghai is developing at a rapid speed.

A. turn    B. change    C. age   D. time

The child enjoyed _____ up the wooden bricks then knocking them down.

A. adding    B. pushing    C. piling    D. forming