The world is filled with many interesting sounds. Some are very pleasant to hear; others are unpleasant to our ears. In a day, you probably hear hundreds of different sounds.

    All sounds are different. Some may be soft; others may be loud. Some sounds are high; others are low.

Some sounds are useful. Without sound we cannot talk or listen to one another. The ringing alarm clock (闹钟)makes people wake up. The hooting of a horn (喇叭声) on the road warns careless people of danger.

We make sounds by making things move to and fro(来回地). This to-and-fro movement is called vibration (振动). It means moving up and down or forwards(向前地) and backwards(向后的) very fast. This makes sound waves(波).

We can make sounds in many ways, for example, by shouting, clapping our hands and striking the table. We can make sounds only by making things vibrate. We can talk because we can make our vocal cords (声带) vibrate. Our vocal cords are in a sound box or voice box. Two vocal cords vibrate when our lungs(肺) force the air through them.

1.We can make sounds ______.

A. by making things still               

B. by making things vibrate

C. by making things jump up and down  

D. by changing the positions of things

2. Some sounds are useful because ______.

A. they can wake people up

B. they can warn people to be careful when they are crossing the road

C. they make it possible for people to talk or listen to each other

D. all of the above

3.When the air is through our vocal cords, it can make them ______.

A. vibrate                               B. breathe the air

C. talk to each other                              D. move forward and backward

4.Sounds are different because ______.

A. different sounds have different vibrations

B. different sounds have different sound waves

C. different sounds have different vocal cords

D. both A and B

阅读下列各小题，根据汉语句子，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。

1.you pay????????????? by cash or credit card in this store. (matter)

在这家商店，你是用现金还是用信用卡结账都没关系。

2.It rained for three weeks on end, completely _________________.????????????? (ruin)

连续下了三个星期的雨，完全毁了我们的假期。

3.There is no sense ___________________now.Look????????????? forward and????????????? everything will be all right. (upset)??

你现在为这件事苦恼是没有意义的，向前看，一切都会好起来的。

4."They didn’t take measures in time, otherwise the explosions __________________," some experts said. (happen)

“他们没有及时采取措施，否则就不会出现这几次爆炸，”一些专家说。

5.The house was greatly damaged by the truck and we'd better leave things________________________ until the police arrive. (be)

卡车严重损坏了这座房子，我们最好保待原样直到警察到来。

6.Research finds that social network users have more than _________________online as in re­al life. (many)

研究发现社交网络用户在网络上拥有的朋友是现实生活中两倍多。

7.What an annoyance!? Hardly__________________my computer ????????????? when a lot of advertisements came pouring in. (turn)

真烦人！我一打开电脑就有很多广告涌入.

8.Huo Zun said that his dream was_______________________to sing a song at the CCTV Spring Festival Gala. (invite)

霍尊说他的梦想是受邀上中央电視台春节联欢晚会唱一首歌。

9.We have launched another man-made satellite,___________________intoday's newspaper. (announce)?????????????

我们发射了另一颗人造卫星，这件事在今天的报纸上被公布了。

10.China is attacked by such a terrible smog _____________________ "nuclear winter". (call)?????????????

中国遭受着被称之为“核冬天”的可怕雾霾的袭击。

句子：根据汉语意思完成下列句子，每空填一词。（每空0.5分，共5分）

1. 很明显，咖啡店的经理在等李方离开。

  It was _________  _________ the manager of the coffee shop was waiting for Li Fang to leave.

2．王鹏可不能让雍慧哄骗人们后而跑掉。

  Wang Peng could not have Yong Hui _________  _________ with telling people lies!

3. 亚当斯先生，不知你是否介意我们问几个问题？

  Mr Adams, I _________  _________ you would mind us asking a few questions? 

4. 当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍。

  When I tried to step forward, I found I was carried __________  __________ far as on the earth.

5. 她们决定先飞到温哥华而不愿一路乘飞机。

  They decided to fly to Vancouver ___________  ___________ take the aeroplane all the way.

阅读下列各小题，根据汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。

71．_____________the present American President Obama is a black man. （it）

众所周知，美国的现任总统奥巴马是一位黑人。

72．Well, towards nightfall I found myself _____________by a strong wind.（carry）

哎，傍晚时分，我发现自己被一阵大风刮到了大海上。

73．Dr Yuan Longping is quite satisfied with his life. However, he doesn’t care much about _____________ （famous）

袁隆平博士很满意他的生活。然而，他对自己的成名并不关心。

74．We were very excited at the news _____________. （win）

当听到我们队获胜的消息时，我们非常激动。

75．Several days later, an expert together with some assistants _____________ help in this work. （send）

几天后，一位专家和几位助手被派去协助这项工作。

76．So whether life will continue on the earth for millions of years to come will depend on _____________. （solve）

因此在未来的数百万年中，生命能否在地球上延续取决于这个问题能否得到解决。

77．But when I tried to step forward, I found I was carried _____________on the earth and fell over. （far）

而当我试着向前迈步的时候，我发觉我被送出去很远，（其距离）相当于在地球上的两倍，因而我摔倒了。

78．Only by shouting _____________ make people on the other side of the river hear him. （able）

只有大声喊叫，才能让河对岸的人听见他说的话。

79．His wife doesn’t like the second-hand car, _____________ is too high, and it looks ugly.（which）

他妻子不喜欢那辆二手车，其价格太高了，而且样子难看。

80．The fine weather _____________ go for an outing next week. We all feel happy.（possible）

好天气使我们的下周出游成为可能。

But when I tried to step forward, I found I was carried _____________on the earth and fell over. （far）

而当我试着向前迈步的时候，我发觉我被送出去很远，（其距离）相当于在地球上的两倍，因而我摔倒了。