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 is the man’s original opinion of the Ice Age people?

    A.They were surprisingly advanced. 

    B.They were primary cave dwellers.

    C.They were inventors of art and music.

2.How did the early Ice Age people keep warm?

    A.They put heated stones on the roof.              

    B.They faced their houses towards the south.

    C.They covered their houses with animal skins.

3.Why does the man want to read the article about the Ice Age people?

    A.To impress his teacher.         

    B.To write his homework.         

    C.To fulfill his curiosity.

    听第二段独白,回答第4-6题。

4.What does the speaker think the biggest problem is?

    A.Packaging.                                   

    B.People spitting.                                

    C.People not cleaning up after their dogs.

5.Why is spitting on the street bad?

    A.Because it is dirty and can spread illnesses.                      

    B.Because it is dirty and makes the street look bad.    

    C.Because it is not nice for others to see someone spitting.

6.What can you help do in your area if you walk or ride a bike more often?

    A.Reduce using gases.            

    B.Cut down the pollution.                         

    C.Improve the traffic.

    听第三段对话,回答第7-9题。

7.Where did the woman find the information about the job?

    A.From an advertisement.                         

    B.From her teacher.                             

    C.In a newspaper.

8.When is the woman expected to work Monday through Friday?

    A.4:00 p.m.to 6:00 p.m.                        

    B.4:30 p.m.to 6:30 p.m.                        

    C.6:00 p.m.to 10:00 p.m.

9.What can we learn from the conversation?

    A.The woman studied Spanish in high school.

    B.The cassettes in the yellow boxes are French lessons.

    C.The man will contact the woman in two weeks.

    听第四段对话,回答第10-12题。

10.What are the two speakers talking about?

    A.The National Day holiday.       

    B.A vacation plan.               

    C.A reservation in some cities.

11.How does the woman feel about Xi’an?

    A.Beautiful but not big enough.    

    B.Worth going but too far away.    

    C.Beautiful but there are too many people.

12.What advice does the woman give in the end?

    A.Going to a hot spring resort.     

    B.Reserving a room as soon as possible.

    C.Going to a big city like Shanghai.

    听第五段独白,回答第13-15题。

13.What should teens learn according to the talk?

    A.How to manage some financial matters well.

    B.How to be a financial manager.

    C.How to help to support the family.

14.What does it mean by Warren Buffett’s statement?

    A.The young generation do not know what they are doing.

    B.If people do not understand how to look after their money, there will be economic crisis.

    C.The new generation do not know they are taking risks.

15.What is the talk mainly about?

    A.The current economic situation has a negative influence on America.

    B.Teens should learn to handle money matters on their own.

    C.Teens should be taught to be financially independent.

34.(18分)

  (1)(8分)在用打点计时器研究小车的匀变速直线运动的实验中:

① 某学生将打点计时器接到频率为50 Hz的交流电源上,实验时得到一条纸带。他在纸带上便于测量的地方开始,每隔4个打点标定一个计数点,共标出了ABCDE五个连续的计数点(相邻两个计数点间还有4个点没有标出)。测量时发现B点已模糊不清,于是他测得AC长为14.56 cm,CD长为11.15 cm,DE长为13.73 cm。则打下C点时小车的瞬时速度大小vC                                   m/s,小车运动的加速度大小a                      m/s2 。(均保留3位有效数字)

② 如果在实验过程中,交流电源的频率变为52Hz,而实验者并不知道,仍然按50Hz来进行计算,则其得出的加速度a的测量值与真实值相比,应该     。(选填:“偏大”、“偏小”或“不变”)   

③ 实验中如果是通过悬挂钩码(借助滑轮和细线)来牵拉,使实验小车做匀加速直线运动的,则是否需要记录所悬挂钩码的质量或重力?       (选填:“需要”或“不需要”)

  (2)(10分)如下图(a)所示,用铁架台、弹簧和多个已知质量且质量相等的钩码,探究在弹性限度内弹簧弹力与弹簧伸长长度的关系实验.

① 为完成实验,还需要的实验器材有:            

② 实验中需要测量(记录)的物理量有:        

③ 图(b)是弹簧所受弹力F与弹簧伸长长度xFx图线,由此可求出弹

簧的劲度系数为   N/m.图线不过原点的原因是由于          

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