问题 选择题

下图所示食物网的生态系统中,能正确描述各种成分和彼此间关系的选项是

[ ]

A.因为老鼠是蚂蚁的天敌,所以老鹰也是蚂蚁的天敌

B.蚱蜢的数量显著减少时,蜥蜴种群较老鼠种群所受的影响大

C.老鹰可以吃蛇,但是蛇无法吃老鹰,因此蛇与鹰是共生关系

D.仙人掌是生产者,老鹰是消费者,蚂蚁是分解者

答案

答案:B

单项选择题
阅读理解

第三部分:阅读理解(共20小题;每小题2分,满分40分)

   阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

        Hsieh.a never--say--die young man,has mastered the technique of painting hy holding

   the paintbrush in his mouth.When he was sixteen,Hsieh had a terrible electrical accident.

   Both of his arms and the lower part of his right leg were cut off.He also lost sight in his

   rigllt eye.But Hsieh didn’t lose heart.He decided to learn art,and took the first difficult

    step toward changing his life.

        “At first.I tried to hoht a pen in my mouth.But I couldn’t control it,”Hsieh said,“Fi—nally,after trying over and over again,I learned tO write my OWn name.”

Learning to paint was even more difficuh.At first,every brushstroke he made caused

deep cuts in his mouth.It was ext remely painful.But Hsieh didn’t let the pain discourage

    him.“lnstead,I held the painlbrusb even tighter,”Hsieh explained in a firm voice.“l   

knew if I gave up.it would not only be the end of my painting,hut also the end of my

struggle for a better life.”No matter what the obstacle(障碍)is,Hsieh always manages to

find the bright side of the situation.

  Hsieh works hard tO inspire others.He is a tireless lecturer,giving about four hundred

formal speeches a year!“If a person like me can lead a happy life,”Hsieh explained,“why

would regular people feel unhappy?It doesn’t always take tWO arms tO achieve your dreams.

A11 it lakes is a warm heart.”

56.What happened tO Hsieh when he was young?

    A.He was struck by electricity.

    B.His left leg was hurt.

    C.He lost heart because of failure.

    D.He was ill for two months.

57.Which of the following is his character?

  A.Realistic thought.    B.Impressive works.

  C.Unexpected news.    D.Belief in SUCCESS.

58.Which is right?

    A.Hsieh once got the help from the government.

    B.Only such a person like Hsieh can succeed.

    C.He touched himself before he began to paint.

    D.It doesn’t always take tWO arms to realize one’S dream.

59.Which is the best title of the passage?

  A.How to learn painting.    B.A painter without hands.

  C.A man who was hurt.     D.How to make oneself well—known.