（一）

Every student can learn rope jumping.

You can jump alone or with your classmate. You can also help turn a long rope for many others to jump over, one at a time. If you jump alone, you will need a short rope and it will be just enough for your height. Try ropes of different lengths until you find a right one for your size.

A rope should be turned slowly. It must also he turned high enough to let you jump freely and safely. Turning the rope freely and safely needs careful timing. In rope jumping, timing means turning the rope slowly enough for you to jump over at the right time without its striking your feet.

When you jump rope, your heart beats faster and your face has a healthy color. But if you jump too many times at first, you will get fired. You must learn when to stop for a rest before you jump again, If you practice, you can increase the number of limes you jumpers without resting.

1. This passage is about _______.

A. a game B. a rope C. rope jumpers D. careful timing

2. How many people can join in rope jumping?

A. One alone. B. Two. C. One or more. D. Two or more.

3. The word “one” in the last sentence of the first paragraph means _______.

A. man B. rope C. thing D. size

4. Before you do rope jumping, you must _______.

A. fined a good player

B. tries whether the rope will be right for you

C. stops to rest for an hour

D. tries whether the rope will be strong enough

5. Which of the following is true?

A. A rope must be turned as slowly as possible.

B. A rope must be turned as high as possible.

C. People can do rope jumping without resting.

D. Careful timing is needed to turn a rope.

【答案与解析】本文是介绍怎样有技巧地玩跳绳这种游戏。

1. A。全文的每一个段落都在讨论rope jumping，即跳绳这种Game。

2. C。由文章的第1段You can jump alone or with your classmate，既然是alone或with classmate，我们可以得知跳绳是一人或一人以上玩的游戏。

3. B。第1段的最后一句讲到Try ropes of different lengths until you find a right one for your size(试试各种不同长度的绳子，直到你找到适合你的身材的一个 right on)，据此显然可推出其中的one指的是“绳子”。

4. B。文章的第1段最后两句告诉我们If you jump alone, you…，所以玩跳绳以前，必须找到适合自己的绳子。

5. D。我们可以在第2段找到Turning the rope freely and safely needs careful timing，这是与D项完全对应的;另外，文中说的是slowing enough，而不是像A、B项所说的as slowly as possible和as high as possible，故排除A和B。根据文章最后一段中的You must learn when to stop for a rest before you jump again可将C项排除。

（二）

Scientists are developing a new kind of machine to take the place of humans. These machines can do jobs in places that are too dangerous for humans. For example, they are being developed to work in nuclear power center, deep under the oceans and in outer space.

John Marrit, a psychologist(心理学家) in Williamsburg Massachusetts, helped develop the new machine. This is how they work. A machine is placed in an area far away from the person who operates it. The person wears special hard hat with television screens and sound equipment. The screens and sound equipment let the person see and hear exactly what the machine is seeing and hearing. Mr. Marrit says this gives the person the feeling of being in the same place as the machine. The idea, he says, is being there without going there. The person uses an electronic control to make the machine move. The machine copies the person’s movements exactly. If the person raises his right arm, the machine raises the right arm, too. This means an expert can do a dangerous job while staying in the safe place. For example, a person can direct the machine to destroy a bomb without going near the bomb himself.

1. The new kind of machine being introduced in the passage is _______.

A. in existence B. only an idea

C. being tried out D. being researched and developed

2. The machine _______.

A. follows the person’s order

B. is controlled by a computer

C. does exactly what the person does

D. is controlled by a television on the person’s head

3. The difference between such a new machine and a robot is that _______.

A. the new machine is more difficult to make than a robot

B. the new machine is mo re difficult to be controlled

C. a robot is controlled by man indirectly

D. a robot can’t be used in places too dangerous or faraway

【答案与解析】科学家正在开发一种代替人的机器，这种机器能代替人们从事一些危险的工作。

1. D。判断题。从第1句话Scientists are developing a new kind of machine to take the place of humans 可以看出，既然是正在开发当中，那肯定还未形成。

2. C。语义理解题。从第2段中的The machine copies the person’s movements exactly 可以明显看出为什么选C的原因。A项有一定的干扰性，但这种机器是人通过电控开关控制的，所以应排除。

3. A。判断题。这种机器还在开发当中，而机器人则有几十年历史了，由此可以肯定答案应该选A。