“When it comes to Earth, there’s no time to w...

“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

“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

阅读下面材料，根据要求完成各题。

Save the world’s trees

“When it comes to the Earth, there is no time to waste.” says the Earth Day Network. And that is right. Protecting our environment is very important, and World Earth Day was created in 1970 to ask more people to protect our environment. On April 22, people around the world celebrate Earth Day.

Every year there is a special topic, and this year it is “Trees for the Earth”, so Earth Day this year will be all about planting trees. They are planning to plant 7.8 billion trees within the next five years.

That’s a big goal, and you might wonder why trees are so important. Because they can take in carbon dioxide (CO2) and protect the air quality(质量). CO2 is a chemical in our atmosphere, but humans make too much of it. Each person makes about 2.3 tons a year, which is bad for the environment.

Well guess what! Planting new trees is important because people cut down a huge number of trees. Last year, there were 3 trillion trees in the world, about 139 billion in China. But according to China Daily, the world’s total number has been almost 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 make up for（弥补）the ones we lost. One tree can take in 21.8 kilograms of CO2 per year. And it’s still one of the cheapest and best ways to get rid of CO2.

But don’t forget that we can also help the environment by cutting down on how much energy(能源) or water we use every day. Every little thing helps.

根据短文内容，回答问题。

1.When do people around the world celebrate World Earth Day?

________________________________________

2.What is the topic of Earth Day?

________________________________________

3.Why are trees so important to the earth?

________________________________________

4.How much CO2 can two trees take in each year?

________________________________________

英译汉

5.Put the sentence “It’s still one of the cheapest and best ways to get rid of CO2.” into Chinese.

_________________________________________________________________________

九年级英语任务型阅读困难题查看答案及解析

阅读表达

When it comes to the letter grade on your test or homework, you might notice that there is no letter E. Have you ever thought about why that is so?

In the A, B, C, D and F grading system, the first four letters are typically considered passing grades. An F in this system simply stands for "fail". The word "fail" happens to start with the letter F, which seems to leave out the letter E.

The first college in the US to use a letter grading system like the ones we use today is Mount Holyoke College. In 1897, they began to use the following grading scale;

A: 95-100% (excellent)　　　　　　 B: 85-94% (good)　　　　 C: 76-84% (fair)

D: 75%( nearly passed)　　　　　　 E: below 75% (failed)

We can see the inclusion of E instead of F.

Gradually, the letter grading system became more popular all over the US. However, many schools decided to drop the E grade and go straight to F. There is no evidence(证据) to really support this, but one possible explanation is that teachers were worried that some students and parents might mistake E for "excellent".

Why do we have letter grades? Well, part of the reason is that they made grading simpler during a time of great change for schools. As the 20th century began, growing cities and an increase in immigration led to larger school classrooms. Most teachers at that time thought this new letter grading system was an easy, fair and clear way to grade students.

Today, more and more people think that letter grades don't fully show students' learning. However, as teachers try to improve grading methods, many parents continue to prefer the letter grades they got as kids,　 as they are familiar and easy for parents to understand. So while they might not be perfect, the letter grades probably aren't going away any time soon.

1.When was the letter grading system first used in the US college

______________________________________________________________________________

2.What is one possible reason for dropping the E grade

______________________________________________________________________________

3.If you're a teacher, do you prefer the letter grades? Why or why not?

______________________________________________________________________________

九年级英语回答问题困难题查看答案及解析

I'm afraid that Rare Earth(稀土) will 　　　　 if we continue to waste it．

A. run out　　 B. break out　　 C. come down　　 D. fall down

九年级英语单项填空中等难度题查看答案及解析

The final exam is coming. Our teachers tell us _____ time.

A. not to waste            B. not waste                C. don’t waste

九年级英语单项填空中等难度题查看答案及解析

--- How was the talk this morning?

---It’s just a waste of time. There is ________ nothing worth listening to.

A. hardly　　　 　　　　 B. almost

C. mainly　 　　　　　　 D. already

九年级英语单项填空中等难度题查看答案及解析

--- How was the talk this morning?

---It’s just a waste of time. There is ________ nothing worth listening to.

A. hardly　　　　　　　　 B. almost

C. mainly　　　　　　　 D. already

九年级英语单项填空中等难度题查看答案及解析

Time waits for no man. But teenagers won’t realize the value of time until it’s gone. Don’t waste your time, ________ you will regret it.

A. and               B. or                  C. but

九年级英语单项填空中等难度题查看答案及解析