问题 选择题

Some scientists believe that         is no doubt         a cure for AIDS will be found.

A.it; that

B.it; whether

C.there; that

D.there; whether

答案

答案:C

句意:科学家相信,毫无疑问,艾滋病的治疗方案终将被找到。Believe后面的that引导宾语从句,在从句中第一空用it做形式主语,that引导真正的主语。

阅读理解
任务型阅读 (每空一词)。
     Animals are people's friends. Buy many wild animals are facing the danger of dying out, because the
environment that they are living in has changed greatly.
     For example, their living area has become smaller and smaller because of the development of cities
and the increasing of population (人口). They have no enough room to live in or enough food to eat. At
the same time, men are trying their best to kill the animals just for getting their fur and skin, teeth and meat.
     People should realize how serious it is and something should be done to protect the animals. We should
build some reserves, so that animals can live freely. And people should not be allowed to kill the endangered
animals or eat their meat.
     We should do something to make our world cleaner. Fresh air, clean water and green grass are all
important for animals. The death of the endangered animals will bring a disaster to human beings (人类).
Research Report

The reason 1______ many wild animals are facing the danger.

                  ↓
Their 2______ area has
become smaller and
smaller.
                   ↓
Fresh air, clean and green
grass are 6______ for
animals.
                ↓
More nature reserves
should be 7______.
                                                         
                  ↓
There is no enough 3______ to
live in and no enough 4______.
                                                           
                       ↓
The endangered animals
shouldn't be 8______ and their
meat shouldn't be 9______.

                     ↓
Men are 5______ their best
to get their fur and skin,
teeth and meat.
                                                     
                    ↓
We should make the world
10______.

单项选择题