试题与答案

关于运动的合成下列说法中正确的是（） A．合运动的时间等于两个分运动的时间之和

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题型：选择题

题目：

关于运动的合成下列说法中正确的是（）

A．合运动的时间等于两个分运动的时间之和

B．合运动的时间大于任意一个分运动的时间

C．合运动的时间小于任意一个分运动的时间

D．合运动和分运动是同时进行的

答案：

答案：D

合运动与分运动具有等时性，ABC都错

考点：运动的合成与分解
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题型：阅读理解

阅读理解。

                                                         "I Went Skydiving at 84"

     As a young girl growing up in the 1930s, I always wanted to fly a plane, but back then it was almost

unheard of for a woman to do that. I got a taste of that dream in 2001 when my husband arranged for

me to ride in a hot air balloon for my birthday. But the experience turned out to be very dull. Around that

time, I told my husband that they were having an essay competition and the topic was experience of a

lifetime that you wanted to have, I decided to write about my dream.

     In the essay, I wrote about my desire to skydive, stating George Bush Sr. did it at age 80. Why not

me? I was just 84 and in pretty good health. A year went by and I heard nothing. But then at a community

party in late April 2009, they announced that I was one of the winners. I just couldn't believe it. Inspired

by this, I decided to realize my dream, even though some of my family members and my doctor were

against it.

     On June 11, 2009, nearly 40 of my family and friends gathered in the area close to where I would land

while I headed up in the airplane. My instructor, Jay, guided me through the experience. The plane was the

noisiest one I had even been in, but I wasn't frightened-I was really just looking forward to the experience.

When we reached 13,000 feet, Jay instructed me to throw myself out of the plane. When we first hit the

air, the wind was so strong that I could hardly breathe. For a second I thought, "What have I gotten myself

into?" But then everything got calmer. We were in a free fall for about a minute before jay opened the

parachute (降落伞) then we just floated downward for about five minutes. Being up in the clouds and

looking at the view below was unlike anything I have ever felt-much better than the hot air balloon. I was

just enjoying it.

     Skydiving was really one of the greatest experiences of my life. I hope other people will look at me and

realize that you don't stop living just because you are 84 years old. If there is something you want to

experience, look into it. If it's something that is possible, make it happen.

1. What happened to the author in 2001?

A. She flew an airplane.

B. She entered a competition.

C. She went on a hot air balloon ride.

D. She moved into a retirement community.

2. The author mentioned George Bush Sr. in her essay to _____.

A. build up her own reputation.

B. show her admiration for him.

C. compare their health condition.

D. make her argument persuasive.

3. How did the author feel immediately after she jumped out of the plane?

A. Excited.

B. Scared.

C. Nervous.

D. Regretful.

4. What did the author enjoy most when she was skydiving?

A. The beautiful clouds.

B. The wonderful view.

C. The company of Jay.

D. The one-minute free fall.

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