问题 选择题

如图所示,一自耦变压器(可看做理想变压器)输入端AB间加一正弦式交流电压,在输出端CD间接灯泡和滑动变阻器。转动滑片P可以改变副线圈的匝数,移动滑片Q可以改变接入电路电阻的阻值。则

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A.只将P顺时针转动,灯泡变亮

B.只将P逆时针转动,灯泡变亮

C.只将Q向上移动,灯泡变亮

D.只将Q向下移动,灯泡变亮

答案

答案:B

阅读理解

In the United States, people like going camping for vacation. They do everything for themselves to relax in the woods instead of staying at a modern hotel or a restaurant. They enjoy themselves far away from the noisy cities for a few days.

What should you prepare if you want to go camping like them? When you are camping, you make all of your own food. Barbeques(烤肉架) are very necessary while camping. You can bring bread, drinks, meat and vegetables to the camp. You’d better bring some wood and a lighter(打火机) to make a fire. Remember to put stones around the fire to make sure it won’t get too big and dangerous. When the fire is ready, you can cook food over it.

Children really like this activity at night. The whole family sit around the fire, eat their favorite food. Certainly they can sing songs and dance together. What a pleasant and exciting moment.

Camping is a fun activity for the family to do. Vacation does not have to mean going to visit a place far away. It could be as simple as setting up a tent in the nearby woods.

小题1:Where do people in the United States like to go camping according to the passage?

A.In big cities.

B.In a place of interest.

C.In a modern hotel or a restaurant.

D.In the woods.小题2:What are NOT necessary if you are camping?

A.Sunglasses.

B.Barbeques.

C.Some wood.

D.Tents.小题3:What does the phrase “make a fire” mean in Chinese?

A.烧烤

B.生火

C.煮饭

D.搭桥小题4:What should you do while using fire?

A.Put stones around the fire.

B.Cover(盖) the fire with grass.

C.Cook food under the fire.

D.Keep far away from the fire.小题5:What can we know from the passage?

A.Camping is popular in China.

B.You needn’t prepare the food for yourselves while camping.

C.Children like camping very much at night.

D.We shouldn’t go camping for it’s dangerous.

多项选择题