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.
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八年级英语完型填空中等难度题
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.
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八年级英语完型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.
| A. millions | B. millions of | C. million of | D. million |
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
完形填空
Scientists think that there life on the earth for hundreds of millions of years. However, we have not found life on any other planets .
The earth is a planet and it around the sun. Seven other planets also go around the sun. of them has an environment like that of the earth, so scientists do not think they will find life on them. The sun and its planets are called the solar system, and our solar system is a small part of a much larger group of stars and planets, the Galaxy or the Milky Way.
There are billions of stars in the Galaxy, and our sun is only one of them.
Scientists have also discovered many other galaxies in the universe. They are very far away and their light has to travel for many years to reach us. So is the universe? It is impossible to imagine.
Scientists have sent spaceships to the planet Mars . They have even
sent spaceships to travel outside the solar system. However, no spaceship has travelled to reach other stars in our Galaxy.
Scientists have always asked the questions: with so many stars in the universe, are we , or is there life out there in space? Have there been visitors to the earth from other planets? Why has communicated with us? We do no know the answers... yet.
1.A. have been B. has been C. is D. are
2.A. yet B. already C. just D. ever
3.A. go B. went C. goes D. going
4.A. no one B. neither C. either D. none
5.A. called B. call C. to call D. calls
6.A. what large B. how small C. how large D. how long
7.A. to take photos B. take photos C. taking photos D. takes photos
8.A. enough far B. enough near C. far enough D. near enough
9.A. lonely B. alone C. along D. alonely
10.A. someone B. anyone C. somebody D. no one
八年级英语完形填空简单题查看答案及解析
1.科学家们认为世界上存有生命已有几百万年的历史了。
Scientists ________ ________ there has been life ________ ________ for ________ ________years.
2.我们还没有在其他行星上发现生命。
We haven’t ________ ________on other ________.
3.科学家们已经在宇宙中发现了许多别的星系。
Scientists ________ ________ many other ________ in the ________.
4.弄清楚宇宙有多大是困难的。
It is hard ________ ________ ________large the ________is.
5.为什么没有人从别的行星上给我们发送信息呢？
Why has ________ ________ ________other planets ________us a message?
6.飞机已经到达了吗？
________the plane ________ ________?
7.我听说你父母到北京出差去了。
I hear your father and mother ________ ________ ________Beijing ________ ________.
8.你觉得这本小说怎么样？
________ ________ ________ ________ ________the novel?
9.你在忙什么呢？
________ are you ________ ________?
10.请记住给我回信。
Please ________ ________ write ________ ________ me.
八年级英语补充句子中等难度题查看答案及解析
Some scientists think that it will take of years to make robots do most work for humans.
A. hundreds B. hundred C. thousand D. million
八年级英语单选题中等难度题查看答案及解析
1.The woman has been to England for three years.
2.I think I’ve gone there once.
3.Mr.Wang taught our maths last year.
4.This is my first visit for Beijing.
5.Miss Wang with her students have gone to the factory.
八年级英语改错困难题查看答案及解析
连词组句：
1.eighty , for , over , he , has , popular , years , been .
2.it , become , of , life , since , my , part , then , has.
3.have , found , on , other , yet , we , not , life , any , planets.
4.speak , when , feel , I , nervous , I , Chinese .
5.you , prizes , heve , ever , any , before ,won ?
八年级英语其他题中等难度题查看答案及解析