题目内容

In what ways has global warming changed our world? Rising sea levels, melting glaciers(冰川) are just a few examples. But did you know that global warming can also bring other changes?

Ending racial(种族的) differences

Global warming causes droughts and poor harvests. This can make people leave their homelands and move to other places. In just 125 years, there may be fewer people with dark skin or pale skin. More people will have brown-colored skin.

Making insects hungrier

When it is warmer, insects’ body temperatures go up along with the outside temperature. This is very different from humans, who can keep their body temperature at a certain level. Higher body temperatures can step up the insects metabolism(新陈代谢). This makes them hungrier, so they need to eat more. And this also makes insects bred(繁殖) more quickly.

Helping scientists find historic sites

Britain had a very dry and hot summer this year because of global warming. After the dry weather turned the country’s green landscape yellow, people noticed some unusual patterns in the middle of a field. That s because grass that grows above them has a different color and height from other grass. This helped people see the patterns. After studying these patterns, scientists found something old and a Roman farm.

1.According to the passage, which skin color will be more common in the future?

A.Dark. B.Pale. C.Yellow. D.Brown.

2.How will global warming make insects hungrier?

A.Because they will grow as big as humans.

B.Because only large insects can live in high temperatures.

C.Because their metabolism will go faster as temperatures are higher.

D.Because they can’t keep their body temperature at a certain level.

3.Because of the hot weather, people in England found______________.

A.new landscapes B.grass with different colors

C.some unusual patterns in a field D.an old country under a field

4.What can we infer from the story?

A.Global warming is not a problem at all.

B.Scientists are happy with global warming.

C.Global warming is happening more quickly.

D.Farmers will face problems because of global warming.

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A famous teacher was speaking to the students at our school. He began his lesson by holding up a ¥100 bill. Then he said to the three hundred students, “Who would like this ¥100 bill?” The students began to put up their hands at once.

Then he said, “I am going to give this ¥100 to one of you, but first, let me do this.” He then made the bill into a ball. Then he said, “Who wants it now?” The hands went back into the air.

“Well,” he said, “What if I do this?” and he dropped it on the floor and stepped on it. He picked up the dirty, crumpled bill and said, “Who still wants it?” Hands went back into the air.

“My friends,” he said, “you have learned a valuable lesson today. whatever I did to the money, you still wanted it because it did not go down in value. It was still worth ¥100!”

Many times in our lives, we are dropped, crumpled, and stepped on by the chances we take and the things that happen to us. We feel as if we are worth nothing. But remember, no matter what has happened to you, you will never lose your value: you are always valuable to those people who love you. Your value doesn’t come from what you do or whom you know, but WHO YOU ARE.

You are special and valuable. Don’t ever forget it!

1.Even though it was dirty, the money .

A.still went up in value B.was worth nothing

C.didn’t go down in value D.went down in value

2.What do the underlined words “Hands went back into the air” in the second paragraph refer to?

A.The students dropped the bill.

B.The students put down their hands.

C.The students put their hands behind their backs again.

D.The students put up their hands again.

3.What did the teacher want to tell the students?

A.He wanted to make the bill into a ball.

B.He used to drop a bill on the floor and stepped on it.

C.He wanted to make the students know what value was.

D.He is very rich.

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