In recent years, the Earth has been getting w...

In recent years, the Earth has been getting warmer. Average temperatures have risen. Possibly this is natural, but probably we are causing it. Modern people use a lot of electricity and drive a lot of cars. This puts carbon dioxide（二氧化碳）into the air and helps to make the planet warmer. When we hear the news, we may smile. No one likes long, cold winters, but, unluckily, there are many bad points about a warmer Earth.

First, the ice at the Poles melts and becomes water. The result is that the sea level becomes higher. Low islands will vanish（消失）. Cities on the coast will be in danger from the sea. Will Tokyo, Bangkok, Hong Kong and Shanghai become like parts of Holland — lower than the sea? Possibly we will have to build walls to keep the water out. Typhoons will become even more dangerous and frightening.

Sadly, the second point is that storms will become bigger. Super-typhoons will be born in the Pacific and do great damage to East Asia. The same will happen to the Eastern United States.

As the weather changes, some places that now have rain will become dry. The farmers will not be able to grow plants. Maybe some dry places will become wet — we don’t know, but we will soon find out, and the change will cause many problems. There might be wars because of it.

1.The sea level becomes _________ if the ice at the Poles melts and becomes water.

A.lower B.smaller C.higher D.bigger

2.Super-typhoons born in the Pacific will damage _________.

A.East Africa B.the Western United States C.Tokyo D.the Poles

3.What will happen to low islands when the Earth gets warmer and warner?

A.They will melt and become water. B.They will disappear.

C.They will become higher. D.They will keep the water out.

4.Which of the following sentences is NOT TRUE?

A.Shanghai will possibly build walls to prevent the water.

B.Some farmers will not be able to grow plants because of the dry weather.

C.Only electricity puts carbon dioxide into the air.

D.The warmer the Earth is getting, the higher the average temperature will be.

5.In the last sentence, “it” refers to _________.

A.the change of the weather B.the strong typhoon

C.the ice at the Poles D.the average temperature

6.Which is the best title of this passage?

A.The Earth is Getting Warmer. B.How to Protect the Earth.

C.We Make the Earth Warmer. D.Global Warming Problems.

八年级英语阅读单选简单题查看答案及解析

For many years scientists have said that the earth is getting warmer. Now they have found something new-hot cities! In the southern US, they have found that cities become very hot in summer. For example, the city of Atlanta in Georgia has roof(屋顶) temperature of up to 50^oC while it is 27℃ in the streets! At night, the outside of buildings stays so hot that the heat of the city causes storms over the city!

China also has the same kind of problems. Every year more farmland is used for factories or offices. More housing is needed, too. As people become richer, they buy more cars. New roads are needed and new car parks are built in the city centers. This all makes cities hotter.

It isn’t easy to change the situation. City planners say that we should plant more trees in the middle of cities. Every new street should have trees on both sides, they say. Trees make the temperature lower, so we should have more trees in our parks and squares. We should also paint our roofs white. If we do this, they do not become so hot. Every roof in a hot and sunny country should have solar(太阳的) roof panels. The electricity from these can be used to run the air conditioners (空调)in the buildings.

People continue to cut down forests around the cities. This makes the problem worse. Cities are growing faster and faster. By the year 2025, four fifths(五分之四) of the population will be living in cities. If we go on like this, there will not be enough farmland to feed everyone in the world

1.The scientists have found________.

2.The way to make the city cooler is to ________.

3.What will probably happen in the future according to the fourth paragraph(段落)?

4.What is the best title(题目)for the passage?

八年级英语阅读理解中等难度题查看答案及解析

The Earth has warmed by about half a degree (0.5度) over the last 100 years. It could be getting warmer on its own, but many scientists think people are making the Earth warmer by making a greenhouse effect (温室效应). The greenhouse effect is very important, Without it, the Earth would not be warm enough for us to live on. But just a little warmer than it is now could cause problems for humans, plants and animals.

Many of the things we do every day can change the Earth’s temperature. We send greenhouse gases (气体) into the air when we watch TV, turn on lights, dry hair, play video games, wash or dry our clothes or drive cars. The rubbish (waste) from factories and homes also produces (生产) greenhouse gases.

Even a small change in temperature can affect (影响) our weather. This can cause changes in the sea, the air, flooding (洪水) and our fresh water.

The change in the temperature can also cause changes in the living places for animals and plants.

Global warming (全球变暖) is a big problem, and we can do every little bit to help. We can also save many things. Remember: If you do a little, you can bring a better world.

1.Which of the following does not send greenhouse gases into the air?

A. Turning on a light. B. Walking to school.

C. Driving a car. D. Watching TV.

2.In this passage, the scientists are mainly trying to make the readers realize （意识到）________.

A. the earth could be getting warmer by itself

B. the earth is getting warmer in 100 years

C. the greenhouse effect is important

D. humans are making the earth warmer

3.Without the greenhouse effect, we would ________.

A. not be able to live B. be safer

C. have a cleaner earth D. have a better world

4.Global warming is a big problem, but ________.

A. we can’t do anything to help B. we don’t need to do anything

C. we can do something to help D. we can do something to stop it

八年级英语阅读单选困难题查看答案及解析

It_______ ten years since Professor Du last_______ to the earth.

A. was； came　　 B. has been； come

C. was, come　　 D. is； came

八年级英语单项填空中等难度题查看答案及解析

词汇运用

1.A large number of　 　　　　　　 __(工厂) have been built in Wuxi in recent years.

2.Can the government do something to reduce water _____________ (污染) ？

3.There are many 　　　　　　 ____ (高山）in china.

4.I have to go to school every day　 ____________ (除了) on weekends.

5.There will be some rain in the　 ____________ (north) part of China next week.

6.It is __________(possible) for me to finish doing so much homework in such short time.

7.It’s nice to visit the places of natural　 _______ (beauty) ,they are very beautiful.

8.How many years has your grandmother been _______(die )?

八年级英语单词拼写中等难度题查看答案及解析

—How many years has life been on earth?

—______ years, I think.

A. 5 millions　　　　　　　　　　　　　　　 B. 5 millions of

C. Million of　　　　　　　　　　　　　　　 D. Millions of

八年级英语单项填空中等难度题查看答案及解析

1

Scientists think that there has been life on Earth for 1 (百万) of years. However, we haven’t found life on other 2 (行星) yet. The earth, the moon, and the sun are a small part of our galaxy. Scientists have 3 ( 发现) many other galaxies in the universe. And there are many books about the universe. I’ve just finished 4 (看) a great book at school. It is a book about the solar system. It is so good that I’ve5(已经) asked the library to keep the next book for6 (我). In the book, it says that astronauts have 7 (去) to Mars and even to Jupiter. I’ve never read that before. I’ve 8 (写信) to NASA to ask them for9 （更多）information about astronauts and space. I hope they will write 10 (回) soon.

八年级英语其他题困难题查看答案及解析

Scientists think that there has been life on Earth for _______ years.

八年级英语单项填空中等难度题查看答案及解析

There _____ great changes in our hometown in the past fifteen years.

A. has been　　　　 B. have been　　　　　　　　 C. was　　　　　　　　 D. were

八年级英语单项填空中等难度题查看答案及解析

There ______ great changes in our hometown in the past fifteen years.

A. has been　　 B. have been　　 C. was　　 D. were

八年级英语单选题困难题查看答案及解析