(2020原创) Water on the earth is becoming less ...

(2020原创) Water on the earth is becoming less and less. We should try not to ________ it.

A.save B.throw C.keep D.waste

八年级英语单选题困难题查看答案及解析

We can use less________and plant more trees to help save the earth.

A.paper cups B.cars C.water

八年级英语单选题简单题查看答案及解析

Although the world is hungry, it is even thirstier. While nearly 3/4 of the earth is covered1.water, we are short of drinking water.2.(actual) about 97% of the water on the earth is sea water.

How can we deal with the problem of lacking drinking water?3.(one), we should save water and not waste it. Second, we should protect our water resources and not pollute 4.(they). Lastly, we should discover ways to reuse water. Scientists have got some5.(achieve) in this field. But people's n6.for water is increasing day by day. We still don't have enough water. What else can we do?

The sea seems to have the 7.(good) answer. There is plenty of water in 8. sea. But we need to take the salt away from the sea water. This is very expensive. We haven't 9.(success) in dealing with the problem.10. scientists can find cheaper ways to do it, we will solve the problem gradually.

八年级英语语法填空中等难度题查看答案及解析

We must look after our home—the earth，because its________is getting worse and worse.

A. water　　 B. environment　　 C. planet　　 D. prediction

八年级英语单选题中等难度题查看答案及解析

Saving water is an important part of going green. As water becomes less and polluted more, conservation(保护)[becomes more and more important. The less water you use, the less wastewater will end up in our rivers and lakes. Wasting water means that more water needs to be treated and cleaned, a process that needs quite a lot of energy.

As it is said above, cutting down on water usage is one of the most important things you can do for your local environment and the planet as a whole. That is why more green households are going blue: cutting down their water footprint by conserving and harvesting (收获) water.

It may seem like a big concept, but going green starts with small changes that everyone can make. Something as simple as turning off the tap while you brush your teeth can save a lot of water. Wash your fruits and vegetables in a bowl rather than under a tap to save even more. Make sure that the taps are fully turned off every time you step away from the sink or the shower - all those little drops can add up to a lot of water waste.

Another way of reducing your water footprint is reducing your dependence on the main water supply. Rainwater harvesting can meet a lot of your home's water needs. Many of us already practice rainwater harvesting in a small way. Collecting water from your gutters (檐沟) is a great way to keep your garden green without running the sprinkler (洒水器).

1.The underlined word "green" means _______ in this passage.

A. 未成熟的　　         B. 环保　　         C.嫉妒　　         D. 健康的

2. According to the passage, which is NOT the reason that people should save water?

A. Treating wastewater needs much energy.

B. The water on the earth is becoming less and less.

C. The water on the earth is becoming polluted more.

D. Rainwater harvesting can meet a lot of your home's water needs.

3. According to the passage, all of these can be used to save water except_______.

A. washing fruit and vegetables under a tap

B. using a bowl to wash your fruit and vegetables

C. making sure taps are fully turned off all the time

D. turning off the tap every time after brushing your teeth

4.Which of the following is the best title of this passage?

A. Save Water by Turning off the Tap

B. How to Treat and Clean Wastewater　 .

C. Keep Your Garden Green with Rainwater

D. Save Water Starting with Small Changes

八年级英语阅读理解中等难度题查看答案及解析

By the year 2050, nearly 80% of the earth's population will live in cities. With the increase of human population, an estimated 109 hectares of new land will be needed to grow enough food to feed them. If traditional farming keeps on continuing as they are practiced today, there won't be enough land. Even if there were, traditional farming can also be harmful to land. Overused soil loses nutrients(营养). Farmers use chemicals to treat their crops. These chemicals get into the ground and run off into bodies of water. The polluted water supply does harm to the ecosystem(生态环境) and the health of those living things nearby.

Vertical(垂直的) farming systems can really help solve these problems. First, farms in urban areas will allow people to harvest fresh produce year­round. There is no need to worry about harm such as droughts or insects, which could destroy a crop. And indoor farms do less harm to the environment. They use less water than a traditional farm and 97 percent of fresh water is reused.Second, vertical farms use less energy because they don't depend on large farming equipment and long transportation systems to carry the food from farms to cities. And all of the crops in an indoor farm are grown without pesticides(农药), so they are fresh and healthy.

So, the next time you hear the word farm, don't just think of that large, open land with crops and animals. Think inside the city—it's the future of farming.

1题完成句子；2～3题简略回答问题；4题找出并写下第二段的主题句；5题将文中画线句子译成汉语。

1.If____________ keeps on continuing as they are practiced today, there won't be enough land.

2.What does the polluted water supply do harm to?

________________________________________________________________________

3.Why do vertical farms use less energy?

________________________________________________________________________

4.________________________________________________________________________

5.________________________________________________________________________

八年级英语多任务混合问题中等难度题查看答案及解析

As we all know, the number of Tibetan antelopes(藏羚羊) ________ becoming ___________.

A. is; less and less　　　　　　　　　　　　　　　　 B. are; less and less

C. is; smaller and smaller　　　　　　　　　　　　 D. are; smaller and smaller

八年级英语单项填空中等难度题查看答案及解析

Water is becoming less and less. All of us should ______ it.

A. play a part in saving　　 　　　 B. plays a part in saving

C. take a part in saving　　　 　　　 D. takes a part in saving

八年级英语单项填空中等难度题查看答案及解析

The planet Mars is the 1.(close) and most similar planet to Earth. It is very interesting to scientists. For example, Mars has seasons with different weather, but other planets have 2. same temperatures all year round. Was there l3. on Mars?

T4. find out, scientists need to know if Mars ever had water. In 2004, two robot explorers(探测器), or ‘rovers’， called Spirit and Opportunity were sent to look for5.(sign) of water. These rovers can drive over rocks 6. all kinds of rough ground. They can also use cameras and send photos back to Earth. 7.(one), the two rovers found chemicals and patterns(图纹) in the rocks that were probably 8.(make) by water. Then, they moved to another area and found other rocks w9. may have been created by water. Now scientists think there was probably water on the planet long ago. Today they are still not sure if there was life on Mars. They 10.(real) need more information to decide. The discoveries of the two rovers answered some old questions, but they also brought up many new ones.

八年级英语语法填空中等难度题查看答案及解析

(2020原创)John, please ________ the water tap after you wash your hands.

A.turn on B.turn down C.turn up D.turn off

八年级英语单选题中等难度题查看答案及解析