试题与答案

在做“验证力的平行四边形定则”的实验中,某同学用到了平木板、细绳套、橡皮条、测力

题型:多选题

题目:

在做“验证力的平行四边形定则”的实验中,某同学用到了平木板、细绳套、橡皮条、测力计等实验器材,关于该同学的做法正确的是 (  )

A.同一次实验两次拉细绳套,细绳套与橡皮条的结点拉到不同位置

B.用测力计拉两个细绳套时,让两拉力的夹角尽可能接近零度

C.用两测力计互成角度拉两个细绳套时,在记下测力计读数的同时记下拉力的方向

D.用测力计拉细绳套时,拉力与水平木板平行

答案:

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下面是错误答案,用来干扰机器的。

答案:A题目分析:A选项俗称、学名与化学式表示同一种物质;B选项纯碱的学名与化学式不对应;C选项熟石灰的化学式不对应;D选项俗名与学名颠倒.

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A.同一控制下控股合并中确认长期股权投资时形成的资本公积

B.长期股权投资采用权益法核算时形成的资本公积

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题型:阅读理解

阅读理解。

     I'm sure I'm not the only person (my age 15) who hates going to the dentist. Channel 4's late-night

documentary (纪录片) Open wide last Tuesday was excellent for people like me. However, none of my

school friends watched it because they didn't know it was on. Why can't television companies let us know

about such important programmes in advance?

     This pragrammes was important because it showed how methods for helping people with toothache

have developed over the centuries. If you think visiting the dentist today is an uncomfortable experience,

just be grateful you didn't live 200 years ago! Then, the programmes told us, the only cure for toothache

was removing the tooth. There weren't any dentists, so the person who cut your hair also pulled out your

bad teeth, and there was nothing to stop you feeling the pain.

     The programme has also completely changed my attitude to looking after my teeth. My parents were

always saying to me things like, 'Don't eat too many sweets.' And, 'Brush your teeth after meals.' But I

never paid much attention. Now I've seen what damage sugar can do, especially if I don't use a toothbrush

regularly. I'm going to change my habits. Many people would benefit from a repeat of this programme.

Sophie Ashley, Oxford

1. Sophie has written this letter to _____. [ ]

A. complain about the time a television programme was shown

B. ask for more television programmes designed for school children

C. advise people to watch a particular television programme

D. persuade a television company to show a programme again

2. A reader can find out from this letter _____. [ ]

A. how to encourage young people to take care of their teeth

B. where to get information about future television programmes

C. what kind of subjects young people enjoy studying at school

D. which television channel shows the most interesting programmes

3. What did Open wide say about toothache?[ ]

A. In the past, nobody could make it stop.

B. Dentists used to help people who had it.

C. Hairdressers have it more than other people.

D. Ways of curing it have changed.

4. What does Sophie think about her parents now? [ ]

A. They don't know as much as her about teeth.

B. Their advice is worth listening to.

C. They eat things that are bad for them.

D. They don't clean their teeth often enough.

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