完形填空（本题共10小题，每小题2分，共20分）

Once a man wanted to go 　 1 　 one side of a river to　 2 　 in a boat. He　 3 　 take　 4 　 him a sheep, a wolf and a basket of vegetables. But he could take only one of them　 5 　, because the boat was very　 6 　. “If I　 7 　 the wolf and the sheep together, the wolf may eat the sheep,” he said to　 8 　.“If I leave the sheep and the vegetables together, the sheep may eat the vegetables.” He thought and thought. At last, he had an idea. And he　 9 　 able to get to the other side of the river with the sheep, the wolf, and the vegetables. Do you know 　 10 　?

1.                A．on　　         B．in　　          C．from　　 D．with

2.                A．another 　      B．the other　      C．others 　     D．other

3.                A．had to 　　     B．has to　　       C．have to 　　  D．must

4.                A．after　　       B．with　　        C．about 　　　 D．up

5.                A．once a time     B．at time　　　    C．in time   D．at a time

6.                A．large　　       B．big　           C．small 　　    D．beautiful

7.                A．will leave       B．left　          C．leave　   D．have left

8.                A．oneself　　     B．myself　        C．itself　　 D．himself

9.                A．was　　        B．is　　          C．be 　　  D．can

10.                                A．how did he it     B．what did he it

C．how did he do it                   D．how he did it

Working parents feel that they are not giving their children enough care. They think that their children feel　1　and　2　 to spend more time with them.
Scientists in some colleges have found that working parents believed that they knew　3　 their children, but 　4 had ever asked their children what they thought. So scientists interviewed (采访) over 1,000 children of working mothers or fathers to　5　 what they wanted. They asked the children　6　they wanted their parents to stay　　7　 and some　8　questions．After they collected the answers, it was   9  that only 10% of the children in their study said that they wanted more time with their parents. _10_, the children who were interviewed said they wanted their parents to give more   11 to them. They said that their parents were as   12  as a bee. When they were asked about what they 13   most, a large number of the children said that they wanted to feel important and   14 .
So parents should know what their children really want and how to get along  15  with them.

Every object has weight. But the center of its weight is not always in the middle of the object. If the top of an object is heavier than its bottom, it will fall over easily. We say that its center of gravity is high. But if the bottom is heavier, it won’t fall easily. Then we say that its center of gravity is low.
Look at the first picture. This empty box must fall over, because its center of gravity (C) is not above the line of its bottom (AB).
Now look at the second picture. There is some heavy iron in the bottom of this box. It will not fall, because its center of gravity is above its bottom.

【小题1】If the bottom of an object is ______ its top, it will fall over easily.

"Can I see my baby?" asked the happy new mother. When the baby was in her arms, she couldn’t believe her eyes. The baby was born without ears.
Time proved(证明) that the baby’s hearing was very good though he had no ears. He got on well with his classmates. But one day, he said to his mother, tears in his eyes, "A big boy called me a freak (畸形的)."
　　The boy’s father asked the family doctor. "Could nothing be done?"
　　"I believe I could graft (植入) on a pair of outer ears if they could be got," the doctor said. They tried to find a person who was helpful for the young man.
　　One day, his father said to the son, "You’re going to the hospital, son. Mother and I have someone who will donate the ears you need. But we must keep it a secret who the person is."
　　The operation(手术) was a great success, and a new person appeared. His cleverness and hard work made him a very successful person. He married and lived a happy life.
　　He once asked his father, "Who gave me the ears? I could do enough for him or her."
　　"I do not believe you could, "said the father." The agreement was that you are not to know...not yet."
　　For years they kept it a secret, but the day did come. He stood with his father over his mother’s body. Slowly, the father raised the thick, brown hair. To his surprise, the son found his mother had no outer ears.
　　"Mother said she was glad she never needed to cut her hair," his father said in a low voice, "and nobody ever thought mother less beautiful, did they?”
【小题1】The mother was surprised to see her baby for the first time because the baby__.

It’s difficult _____ your sound because the noise is too high.

A．to listen　         B．to know　         C．to learn           D．to hear