题目内容
are sent by air. You send a letter by air so that your friend may receive it sooner. A letter takes about twelve
days to go from England to India by train and by ship. A letter can get to India by air in five days now, but
soon the time may be made shorter. At first, people were afraid to send letters by air. They thought that the
plane may fall and their friends may not receive the letters. So they sent two letters, one by air and the other
by train or ship. They wanted to make sure that the letter would be received. Planes are now almost as safe
and sure as trains or ships. More and more letters are sent by air.
B. only by ship
C. only by train
D. by plane
A. as fast as
B. much slower than
C. not as safe as
D. faster than
B. fifteen
C. twelve
D. ten
by air or by train and by air at the same time.
B. two different letters
C. some letters
D. two same letters
B. Planes are as safe as ships and trains.
C. Now people send all letters by air.
D. Now people send letters in different ways.
阅读理解
High in the mountains, and deep in the forest, lives a lake with many plants and animals in and around her. The plants and animals have enough food and clean water to keep them healthy. The wind carries pure air, and the rain comes down clear and clean.
But recently, Lucy Lake and her friends haven’t been feeling very well. All the plants and animals get together to talk about the problem. “Why are we sick?” “What can we do?” ask all of them. No one has any answers.
Just then two hikers appear. The animals tell them about their problems. “Can you help us?” they ask. “Yes,” one hiker says. “I think it’s because of acid rain.”
“Acid rain comes from chemicals(化学物质) in the air. The pollution comes from factories, cars and trucks.”
“So, although I don’t want to, I help the pollution travel through the air!” says the wind. “And I carry it to the land!” cries the rain.
“If you can help us think of some solutions(解决方法), we will send a message to tell people how to clean up our environment,” one hiker says.
With the help of the plants and animals, the two hikers make a list of ideas for saving Lucy Lake and her friends.
Time passes, and the forest and lake begin to feel a little better.
The next time the hikers climb up the mountains to Lucy Lake, they smile at what they find. “We’re glad things have started to change,” one hiker says. “And we’re glad you helped us make a difference,” says the other.
1.The underlined word “pure” can be replaced by “____”.
A.polluted |
B.clean |
C.cold |
D.cool |
2.The two hikers are most probably ____.
A.scientists |
B.teachers |
C.doctors |
D.reporters |
3.____ have (has) nothing to do with the cause of acid rain.
A.The rain |
B.Human beings |
C.The wind |
D.The plants and animals |
4.The underlined word “you” refers to (指) ____.
A.Lucy Lake |
B.the plants and animals |
C.one of the two hikers |
D.the wind and the rain |
5.Which of the following is NOT true?
A.Acid rain is very harmful only to plants and animals. |
B.Human activities are the main cause of acid rain. |
C.Acid rain can make the living things in the environment get sick. |
D.We should clean up our environment to protect us against acid rain. |