题目内容
these things grow in the fields. They were all made in factories. And, of course, they were invented by
some people. There have not always been pencils or pens, a ruler and books. Thousands of years ago
no one knew about these things.
Who invented them first? How did they have such clever ideas? We always don't know. There have
been many thousands of inventions, large and small, in the human history. Some of these inventions have
changed the world. Such as paper, printing, radio, telephone and computer, and we know the inventors.
But we have forgotten most of the other inventors.
Who invented the clock, for example, or the lock to the door? We don't know. There have been
thousands of inventors and we should grateful (感激的) to them for their clever ideas. Will you be one
of them when you grow up?
B. wood
C. metal
D. nylon
B. they hoped to save some money
C. they have a lot of clever ideas
D. they have good machines
B. who invented clocks and doors
C. when the first key was invented
D. how much the silk cost
B. the names of the inventors of telephone
C. the names of the inventors of lamp
D. the names of most inventors
B. if you want to be an inventor
C. what's invented by you
D. how many inventors you know
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. |