第一节  听力理解(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ABC项中,选出最佳选项,并在该答题卡上将该项涂黑。

听下面一段对话,回答第1~3三个小题。

1.Where does the talk take place?

A.At a radio station.

B.At a concert.C.At a Music Club.

2.What does the woman think of her experience in America?

A.It is boring.

B.It is relaxing.

C.It is crazy.

3.Why will the woman go back to America next year?

A.To give more shows.

B.To meet local fans.

C.To record some songs.

听下面一段对话,回答第4~6三个小题。

4.What does the man think of the woman’s new hairstyle?

A.It is very nice.

B.It doesn’t look good.

C.It is the same as his.

5.What did the woman want to do with her hair at first?

A.Wash it .

B.Grow it.

C.Oil it.

6.What do we know about the man?

A.He has a new hairstyle.

B.He wants a hair cut.

C.He has no hair.

   听下面一段独白,回答第7~9三个小题。

7.What is giving the girl the most trouble?

A.Homework from teachers.

B.Pressure from friends.

C.Speaking in front of others.

8.How did the girl’s mother try to help her?

A.She bought a book for the girl.

B.She suggested the girl practice in front of her.

C.She asked the girl to think about Fruit and vegetables.

9.Which word best describes the girl?

A.Friendly.

B.Angry.

C.Nervous.

听下面一段对话,回答第10~12三个小题。

10.Where will the boy stay during summer?

A.At his mother’s home.

B.At his grandparents’ house.

C.At his friend’s place.

11.How does the boy usually spend most of his time there?

A.Swimming in the sea.

B.Playing with the neighbours’ kids.

C.Staying in his room.

12.What is the talk mainly about?

A.School exams.

B.Summer fun.

C.Unhappy relationships.

   听下面一段独白,回答第13~15三个小题。

13.Who is the speaker?

A.A teacher.

B.A theatre manager.

C.A customer.

14.Why will the listeners visit the theatre?

A.To watch a film.

B.To practice their English.

C.To prepare a report.

15.How does the speaker want the listeners to work?

A.Alone.

B.With a partner.

C.With the secretary.

23.小铃为了鉴别一工艺品是否铜做的,做了以下实验:

   (a)称出工艺品的质量,如图25所示.

   (b)A、B两量筒分别装上30mL的水.

   (c)把工艺品放入A量筒,如图26.

   (d)把与工艺品相同质量的实心铜块放入B量筒,如图27.

   问:

   (1)工艺品的质量m=    g.

   (2)实心铜块的体积V=     cm3.图27中铜块所受浮力F=   N.

     (水密度ρ=1× 103kg/m3,g=10N/kg)

   (3)由上述实验可知该工艺品的体积比铜块的体积  、密度比铜的密度  .

     (选填“大”、“小”).

   (4)小铃根据工艺品的密度与铜的密度不等而得出工艺品不是铜做的结论.此结论是

      否可靠?为什么?

[答案](1)89;(2)10;0.1。(3)大、小.(4)这个结论不完全对,因为它也可能是铜做的,只是内部空心了;当然,如果是实心的,则肯定不是铜做的。

[解析](1)用天平测物体的质量,当操作正确是,物体的质量是砝码的示数与游码的示数和。

(2)F浮=ㄗ液gV排=1.0×10-5  m3× 1.0×103kg/m3  ×10N/kg  =0.1N                                            

(3)由于质量相等,铜块排开水的体积小于工艺品排开水的体积,所以铜块的密度大。

(4)根据计算得出的是工艺品的密度小于铜的密度,但若是空心的,它也可能是铜做的

[考点]天平的使用,浮力公式

 0  342843  342851  342857  342861  342867  342869  342873  342879  342881  342887  342893  342897  342899  342903  342909  342911  342917  342921  342923  342927  342929  342933  342935  342937  342938  342939  342941  342942  342943  342945  342947  342951  342953  342957  342959  342963  342969  342971  342977  342981  342983  342987  342993  342999  343001  343007  343011  343013  343019  343023  343029  343037  447090 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网