0  294081  294089  294095  294099  294105  294107  294111  294117  294119  294125  294131  294135  294137  294141  294147  294149  294155  294159  294161  294165  294167  294171  294173  294175  294176  294177  294179  294180  294181  294183  294185  294189  294191  294195  294197  294201  294207  294209  294215  294219  294221  294225  294231  294237  294239  294245  294249  294251  294257  294261  294267  294275  447090 

2.氘核由1个中子和1个质子组成,若用表示质子的静止质量,表示中子的静止质量,表示氘核的静止质量,c表示真空中的光速。则中子和质子结合成氘核时释放出的能量为

A.        B.

C.        D.

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1.下列说法中正确的是

A.射线比射线更容易使气体电离

B.核反应堆产生的能量来自轻核的聚变

C.射线在电场和磁场中都不会发生偏转

D.太阳辐射的能量主要来源于太阳内部重核的裂变

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第一节:  基础写作(共1小题,满分15分)

上个月,你市的一家报社对你市道路空气质量进行了一项调查。 调查的内容情况如下:

[写作内容]

调查项目
调查结果
空气质量
污染严重,特别是在上下班的高峰期,情况更加严重。
原因分析
1. 私家车太多,近三年来以10%的速度增加。2. 路面窄, 车流速度慢。3. 道路附近的工厂排放的废气也是道路空气污染的原因之一。
呼吁
控制私家车的数量,大力发展公共交通。

[写作要求]

请用五个句子描述以上表格的内容要点。

[评分标准]

句子结构准确,信息内容完整,篇章结构连贯。

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第二节  听取信息 (共5小题;每小题1分,满分5分)

听下面1 段独白。请根据题目要求,从所听到的内容中获取必要的信息,填入答题卷标号为16~20的空格中。听录音前,你将有10秒钟的阅题时间。录音读两遍,你有80秒的作答时间。

Drinking
A person may not buy alcohol in 16.____________ if he / she is under the age of 18.
Noise
Don’t make unnecessary noise, particularly at night, and respect other people who may wish 17.____________
Traffic
Drive on the left side of the road. Use the crossing for walking and do not take 18.___________ when crossing the road.
Littering
It is against the law to throw away waste materials 19.___________.
Smoking
It is 20. __________ to buy cigarettes or tobacco if you are under the age of 16.

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第一节  听力理解(5段共15小题;每小题2分,满分30分)

每段播放两遍,各段后有几个小题,各段播放前每小题有5秒钟的阅题时间。请根据各段播放内容及其相关小题,在5秒钟内从题中所给的A、B、C项中,选出最佳选项,并在答题卡上将该项涂黑。

听第一段对话,回答第1-3题。

1.      What’s the relationship between the two speakers ?

A. Professor and student.

B. Manager and secretary.

C. School master and teacher.

2.      What can we learn about the man?

A. He is kind.       B. He is helpful.        C. He is careful.

3.      What can we learn from the dialogue?

A. The man only pointed out two mistakes by the woman.

  B. The woman always makes many mistakes in her work..

  C. The man is too hard on the woman all the time.

听第二段对话,回答第4-6题。

4.      What are the two talking about?

A. Mrs. Smith.       B. Mr. Downs.        C. Mr. Downs’ son.

5.      How long does a school day last?

A. At least 8 hours.     B. About 6 hours.       C. Less than 4 hours.

6.      How does Jack usually go to school?

A. By bus.         B. On foot.         C. By car.

听第三段对话,回答第7-9题。

7.      Who answered the phone?

A. Tom.          B. Tom’s wife.        C. Susan.

8.      When are they going to New Zealand?

A. In half a year.       B. In a couple of months.    C. In two weeks.

9.      Where are they going to meet?

A. At Susan’s.       B. At Tom’s.         C. In New Zealand.

听第四段对话,回答第10-12题。

10.      Why does the speaker give the talk to the students?

A. To scold them.      B. To praise them.       C. To encourage them.

11.      How does the speaker offer to help the students?

A. By letting them skip(不参加)the test.

B. By talking to them in person.

C. By treating them like Einstein.

12.      What exam will the students have after their meeting with the teacher?

A. The final.        B. The midterm.        C. The test on Einstein.

听第五段对话,回答第13-15题。

13.      What can Maria see?

A. Many trains.       B. Many planes.        C. Many people.

14.      What’s the woman afraid of?

A. Driving in.       B. Taking ferries.        C. Getting lost.

15.      What kind of city is New York, according to the man?

A. An easy city to get around in.

B. A city full of subways.

C. A city difficult to get around in.

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