问题 选择题

读下图,回答:

1.以上两图反映的地貌形成的主要地质作用是

A.流水侵蚀作用  B.流水沉积作用  C.海水侵蚀作用  D.风力侵蚀作用

2.河流R的水源补给主要来源于

A.积雪融水  B.湖泊水  C.深层地下水  D.冰川融水

3.近年来,河流尾闾地区的农业区不断缩小,尾闾湖基本消失,主要原因可能是

A.下游地区人口迁往上游  B.臭氧层空洞

C.中上游地区沙尘暴增加  D.中上游地区农业用水量增加

4.近年来,分布于冲积—洪积扇前缘的泉水大量消失,主要原因可能是:

A.温度下降  B.温度升高  C.上游森林被大量砍伐  D.过量灌溉

5.协调本地区发展和环境之间关系的途径有:

A.增加移民  B.提高人口素质  C.扩大耕地面积  D.保育天然植被

答案

1.B

2.D

3.D

4.C

5.D

图中显示该地有沙漠、冲积扇等地貌,表明该地的地质作用主要为流水沉积作用和风力沉积作用;R河位于干旱气候区,水源补给主要是夏季冰雪融水和少量的大气降水;河流尾闾地区的农业区不断缩小,尾闾湖基本消失主要是中上游地区工农业发展,用水增加,导致河流尾闾地区水资源减少的缘故。同时上游森林破坏,过度开采地下水,破坏了泉水的补给水源,导致泉水消失。协调本地区发展和环境之间关系的途径只能从可持续发展的角度出发

阅读理解

阅读理解。

     Acting is such an over-crowded profession that the only advice that should be given to a

young person thinking of going on the stage is "Don't!". But it is useless to try to discourage

someone who feels that he must act, though the chances of his becoming famous are slim. The

normal way to begin is too to a drama school. Usually only students who show promise and

talent are accepted, and the course lasts two years.

Then the young actor or actress takes up work with a repertory company, usually as an assistant

stage manager. This means doing everything that there is to do in the theatre: painting scenery,

looking after the furniture, taking care of the costumes, and even acting in very small parts. It is

very hard work indeed. The hours are long and the salary is tiny. But young actors with the stage

in their blood are happy, waiting for the chances of working with a better company, or perhaps

in films or television.

     Of course, some people have unusual chances which lead to fame and success without this

long and dull training. Connie Pratt, for example, was just an ordinary girl working in a bicycle

factory. A film producer happened to catch sight of her one morning waiting at a bus stop, as he

drove past in his big car. He told the driver to stop, and he got out to speak to the girl. He asked

her if she would like to go to the film studio

to do a test, and at first she thought he was joking. Then she got angry and said she would call the

police. It took the producer twenty minutes to tell Connie that he was serious. Then an appointment

was made for her to go to the studio the next day. The test was successful. They gave her some

necessary lessons and within a few weeks she was playing the leading part opposite one of the

most famous actors of the day. Of

course, she was given a more dramatic name, which is now world-famous. But chances like this

happen once in a blue moon!

1. According to the passage, the main reason why young people should be discouraged from becoming

actors is ________.

A. actors are very unusual people

B. the course at the drama school lasts two years

C. acting is really a hard job

D. there are already too many actors

2. According to the context, the sentence "But young actors with the stage in their blood are happy" at

    the end of the first paragraph means ________.

A. they don't care if their job is hard

B. they like the stage naturally

C. they are born happy

D. they are easily satisfied

3. Connie Pratt soon became a famous actress after ________.

A. learning some lessons about the art of speaking

B. playing her part in the "Blue Colored Moon"

C. successfully matching the most famous actors

D. acting a leading part with a most famous actor at that time

4. The phrase "once in a blue moon" in the last line of the passage means ________.

A. all at once                    

B. once for a long time

C. once in a while                

D. once and for all

单项选择题