—How many years has life been on earth?—_____...

—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

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

A. millions of　　 B. hundreds of　　 C. five million of　　 D. million of

八年级英语单选题简单题查看答案及解析

Scientists think that there _____ life on Earth for millions of years.

A. has had　　 B. have had

C. has been　　 D. have been

八年级英语单项填空中等难度题查看答案及解析

阅读短文，选择话题(其中有一项多余)5分

1.What do you think the life on the earth will be like in 100 years?

Many scientists say that by the year 2100 the earth will become a worse place for us to live on.

2.Water is around us .All the creatures must have water to live. The plants must have it. The animals must have it .We must have it, too. We can’t live without drinking.

3.In some places of America, lots of people found some unidentified flying objects. They have different shapes. Some look like round plates, some look like　 bright planes and so on.

4.When you are learning English, listening, speaking and writing are important , but reading can also be very helpful. When you read, you can’t only learn some new words, but also you can learn how to use these English words.

5.The internet is a net-work . It uses the telephone to join millions of computers together around the world .

八年级英语其他题中等难度题查看答案及解析

Scientists think that there has been life for__31_ of years. However we haven’t found life on other planets _32_ . The earth is a planet and it _33__ around the sun. Seven other planets also go _34_ the sun. The sun and its planets are __35  the solar system. The solar system is a small part of our galaxy.

Scientists __36_ lots of spacecraft to look at other planets in the solar system, and some spacecraft have gone __37_ the solar system. However, no one __38_ any life in space yet.

But why has no one from other planets sent us a message ? Have they tried to send _39_ to us ? _40_so many stars in the universe, are we alone, or is there life out there in space ? We don’t know.

八年级英语完型填空中等难度题查看答案及解析

----______has Tom been a doctor ?　　　　 -----Since two years ago.

A. How soon　　　　 B. How much　　　 C. How many　　 D. How long

八年级英语单项填空中等难度题查看答案及解析

----______has Tom been a doctor ?　　　　 -----Since two years ago.

A. How soon　　　　 B. How much　　　 C. How many　　 D. How long

八年级英语单项填空中等难度题查看答案及解析

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