There ________ no mountain on the earth that can grow taller than Qomolangma.
A.be B.am C.is D.are
九年级英语单选题中等难度题
There ________ no mountain on the earth that can grow taller than Qomolangma.
A.be B.am C.is D.are
九年级英语单选题中等难度题查看答案及解析
----There can be no life on the earth without water.
----That’s right. Water _____ everywhere.
A.needs B.is needing C.is needed D.needed
九年级英语单项填空中等难度题查看答案及解析
---Who is the boy over there? Is it John?
--- No, it ______ be him. John is much taller.
A. can’t B. may not
C. mustn’t D. needn’t
九年级英语单项填空中等难度题查看答案及解析
“When it comes to Earth, there's no time to waste, ” says the Earth Day Network. And that is right. Protecting our environment is very important, and World Earth Day was _______ in 1970 to raise people's environmental awareness. On April 22, people around the world _______Earth Day.
Every year there is a special _______, and this year it is “Trees for Earth”, so Earth Day will be all about _______ trees. Their goal is to plant 7. 8 billion trees in the next five years. That's a big goal, and you might wonder _______ trees are so important. Well, for one, they can help stop climate _______. Carbon dioxide(二氧化碳)is a chemical in our atmosphere, but _______ make too much of it. Each person makes about 2. 3 tons a year, which is _______ for the environment.
Well, guess what? Trees _______ carbon dioxide and protect the air quality. Planting new trees is important because people cut down __________ trees. Last year, there were 3 trillion(万亿)trees in the __________, about 139 billion in China. But according to Time, the world's total number has been __________ cut in half since human civilization(文明)began. That's because 15 billion trees are cut down every year.
So we need to __________ more to replenish(补充)the ones we've lost. One tree can take in 48 pounds (14 kg)of carbon dioxide per year. And it's still one of the cheapest and __________ ways to get rid of carbon dioxide.
But don't forget that you can also help the environment by __________ on how much energy or water you use every day. Every little thing helps!
1.A.set B.produced C.created D.found
2.A.celebrate B.introduce C.suppose D.admire
3.A.name B.subject C.saying D.sign
4.A.protecting B.choosing C.watering D.planting
5.A.what B.why C.whether D.how
6.A.standard B.influence C.change D.effect
7.A.humans B.animals C.factories D.plants
8.A.useful B.bad C.special D.possible
9.A.take out B.put out C.take in D.put in
10.A.countless B.hopeless C.useless D.endless
11.A.wild B.world C.forest D.space
12.A.hardly B.never C.really D.almost
13.A.spread B.pick C.plant D.try
14.A.fastest B.best C.nearest D.hardest
15.A.turning down B.pulling down C.cutting down D.speeding down
九年级英语完型填空困难题查看答案及解析
Wild animals are important to us. They live 1. with us on the earth. If there are no animals on the earth, we will not live on, 2.. So we should take good care of them to help the earth live a 3. life.
But some people still don’t realize the importance of protecting them. They kill wild animals for food and 4.. Every day many wild animals are being killed. So far, lots of wild animals 5.. If this goes on, there will be no animals 6. on the earth.
7., many people have begun to realize the importance of protecting wild animals. They ask others to stop 8. wild animals. Now many countries have made some laws to protect wild animals and to stop people from killing them.
Protecting wild animals is the duty of each of us. We should do our 9. to protect them because protecting them is protecting 10. too.
九年级英语选词填空困难题查看答案及解析
“When it comes to Earth, there’s no time to waste,” the Earth Day Network says. And that is true. 1. (protect) our environment is very important. World Earth Day was created in 1970 to raise people’s e2. awareness.3. April 22, people around the world celebrate Earth Day.
Every year there is a special theme. The theme was “Trees for Earth” in 2016. Their goal is to 4. 7.8 billion trees by 2020.
That’s a big goal, and you might wonder5. trees are so important. Well for one, they can help stop climate change. Carbon dioxide (二氧化碳) is a chemical in our atmosphere, but humans make too much of it. Each person makes about 2.3 tons a year, which is b6. for the environment.
Well guess what! Trees take in carbon dioxide and improve air quality. Planting new trees is important because people cut down countless t7..
According to Time, the total number of trees in the world has been almost cut in half since human civilization (文明) 8. (begin). So we need to plant more to replenish (补充) the ones we’ve lost. One tree can take in 48 pounds (21.8kg) of carbon dioxide per year. And it’s still one of the9. (cheap) and best ways to get rid of carbon dioxide.
But don’t forget that you can also help the environment by cutting down on how much energy or w10. you use every day. Every little bit helps!
九年级英语单词填空中等难度题查看答案及解析
完形填空
“When it comes to Earth, there’s no time to waste,” says the Earth Day Network. And that is right. Protecting our environment is very important, and World Earth Day was in 1970 to raise people’s environmental awareness. On April 22, People around the world celebrate Earth day.
Every year there is a special , and this year it is “Trees for Earth”, so Earth Day will be all about planting trees. Their goal is to plant 7.8 billion trees the next five years.
That’s a big goal, and you might wonder trees are so important. Well for one, they can help stop climate change. Carbon dioxide (二氧化碳) is a chemical in our atmosphere, but make too much of it. Each person makes about 2.3 tons a year, which is bad for the environment.
Well guess what! Trees carbon dioxide and protect the air quality. Planting new trees is important because people cut down trees. Last year, there were 3 trillion(万亿) trees in the , about 139 billion in China. But according to Time, the world’s total number has been cut in half since human civilization (文明) began. That’s because 15 billion trees are cut down every year.
So we need to plant more to replenish (补充) the ones we’ve lost. One tree can take in 48 pounds (21.8kg) of carbon dioxide per year. And it’s still one of the cheapest and ways to get rid of carbon dioxide.
But don’t forget that you can also help the environment by cutting down on how much energy or water you use every day. Every little thing helps!
1.A. set B. produced C. created D. found
2.A. name B. theme C. saying D. sign
3.A. for B. after C. by D. in
4.A. what B. why C. whether D. how
5.A. humans B. animals C. ghosts D. plants
6.A. take out B. put out C. take in D. put in
7.A. countless B. hopeless C. useless D. endless
8.A. wild B. world C. forest D. space
9.A. hardly B. never C. really D. almost
10.A. most B. best C. fewest D. worst
九年级英语完形填空中等难度题查看答案及解析
—Perhaps we will live on Mars some day.
—Then we can do anything can be done on the earth.
A. that B. which C. who
九年级英语单项填空中等难度题查看答案及解析
Scientists think that there has been life on the earth for hundreds of millions of years. However, we haven't found life on other plants yet. Why not?
The Earth is a planet and it goes around the Sun. Seven other planets also go around the sun. None of them has an environment with air, so people and living things cannot grow. The Sun and its planets are called the solar system(太阳系). The solar system is a small part of our galaxy(星系).
But scientists have discovered many other galaxies in the universe. But they are far away and their light has to travel for many years to reach us. It is hard to understand how large the universe is.
So far, scientists have sent lots of spaceships to look at other plants in our solar system, and some spaceships have gone beyond the solar system. However, no one has discovered any life in space yet.
But why has no one from other plants sent us a message? Have they tried to send information to us? With so many stars in the universe, are we alone, or is there life out there in space? We don't know yet.
1.How many planets go around the sun?
A.Seven B.Eight C.Nine D.Ten
2.In order to look at other planets in the solar system, scientists have sent many________.
A.e-mails B.planes C.spaceships D.messages
3._______ has found life on other planets.
A.No one B.A scientist C.A traveler D.A student
4.Which of the following is TRUE?
A.All the planets have an environment with air. B.It’s easy to know how large the universe is.
C.There is only one galaxy in the universe. D.The solar system includes the sun and its planets.
5.The best title of this passage should be ________.
A.The Moon B.The Solar System C.The Stars at Night D.The Sun
九年级英语阅读单选中等难度题查看答案及解析
阅读短文,完成各题。
Scientists think that there has been life on the earth for hundreds of millions of years. However, we have not found life on any other planets yet.
The earth is a planet and it goes around the sun, which is a star. Seven other planets also go around the sun. None of them has an environment like that of the earth, so scientists do not think they will find people and things on them. The sun and its planets are called the solar system (太阳系). The solar system is a small part of our galaxy (星系). 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 (宇宙). They are very far away and their light has to travel for many years to reach us. So how large is the universe? It is impossible to imagine.
Scientists have sent spaceships to the planet Mars (火星) to take photos. They have even sent spaceships to travel outside the solar system. However, no spaceship has travelled far enough to reach other stars in our Galaxy.
Scientists have always asked questions: with so many stars in the universe, are we alone, or is there life out there in space? Have there been visitors to the earth from other planets? Why has no one communicated with us? We do not know the answers… yet.
根据短文内容,判断下列句子正误。正确的用“A”表示,不正确的用“B”表示。
1.There are eight planets in the solar system.
2.There is more than one galaxy in the solar system.
3.The light from the stars in other galaxies has to travel for a long time to reach the earth.
4.Spaceships have visited most of the universe.
5. Scientists have received many messages from space.
九年级英语阅读理解中等难度题查看答案及解析