题目内容

【题目】地球在自转的同时也在围绕太阳公转,据此回答下列小题。

1

A. 地球的自传 B. 地球的公转 C. 水循环运动 D. 地壳的运动

2

A. 地球表面任何一地点的自转角速度均相等,约为15°/h

B. 在地球上看北极星连续两次上中天的时间间隔为24小时

C. 我国选择在海南文昌建设卫星发射基地的原因主要是海南海拔低、周围临海

D. 站在北极仰视星空,能发现天空中恒星运动方向为逆时针

【答案】

1B

2D

【解析】试题分析:

1】由于太阳直射点的南北移动,东非高原受赤道低气压带和信风带交替控制形成热带草原气候,当受赤道低气压带控制时降水多,草类茂盛,东非高原野生动物大迁徙的根本原因是地球的公转,B正确。

2】除南北极点外,地球表面任何一地点的自转角速度均相等,约为15°/h ;在地球上看北极星连续两次上中天的时间间隔为23564秒;我国选择在海南文昌建设卫星发射基地的原因主要是海南纬度低,地球自转线速度大;站在北极仰视星空,能发现天空中恒星运动方向为逆时针,D正确。

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【题目】I gain a lot of rewarding experiences from some social activities. Our local Community Youth Club is a very popular organization with young people in my town. I have been a member for four years now and I’ve taken part in a lot of interesting projects, _ 【1】 include fun activities such as holiday camps and discos. We have organized sports competitions and we have even made a video.

But it isn’t all just enjoyment, we have also started doing social work to help people in our neighbourhood. We 2 (organize) activities for small children during the holidays. We have also formed a special support group to help young people stop 3 (smoke).

We are particularly proud of the most recent group we have created. It organizes regular visits 4 the local old people’s home .My class spent an afternoon at a home and everyone found the visit very rewarding. The old people there were 5 (talk) and they told us their personal stories 6 _ (cheer).During our visit, the home was filled with 7 (laugh).But we realized that life wasn’t always easy. Some of them were in poor health and were very 8 (happy).

Many young people like me do not live with our grandparents and we have little contact with elderly people. As a result, many young people don’t know 9__ they are like. After this visit, my friends and I decided that we should do _ 【10 to help improve the quality of their lives.

【语篇导读】作为社区青年俱乐部的一名成员,我参加了许多社会活动,从中获得了很多经验。

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