Scientists are trying to ways to treat the terrible disease called H7N9.
A. come up with B. give in C. talk about D. give up
八年级英语单项填空中等难度题
Scientists are trying to ways to treat the terrible disease called H7N9.
A. come up with B. give in C. talk about D. give up
八年级英语单项填空中等难度题查看答案及解析
It’s reported that scientists from different countries are trying to _______ a good way to solve the energy problems.
A. keep up with B. catch up with C. come up with D. meet up with
八年级英语单选题中等难度题查看答案及解析
The scientists in China are trying ______ways to reduce pollution.
A. look for B. find out. C. to look for D. found out
八年级英语单选题中等难度题查看答案及解析
The scientists in China are trying __________ the ways to reduce the fog and haze (减少雾霾)．
A．look for B．to look for
C．to find out D．find out
八年级英语单选题中等难度题查看答案及解析
The scientists in China are trying __________ the ways to reduce the fog and haze (减少雾霾)．
A．look for B．to look for
C．to find out D．find out
八年级英语单项填空中等难度题查看答案及解析
Scientists are trying to make the deserts （沙漠）into good land again. They want to bring water to the deserts, so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming deserts all the time. Scientists may not be able to change the deserts. Scientists think that people make deserts. People are doing bad things to the earth.
Some places on the earth don’t get much rain. But they still don’t become deserts. This is because some green plants are growing there. Small green plants and grass are very helpful(有帮助的) to dry places. Plants don’t let the hot sun make the earth even drier. Plants don’t let the wind blow the earth away. When a little bit of rain falls, the plants hold the water. Without plants, the land can become deserts much more easily.
1.Why can the land become deserts?
A. Some places don’t get much rain.
B. Plants don’t let the hot sun make the earth even drier.
C. People don’t keep the earth well.
D. Scientists haven’t learnt enough about the deserts.
2.Scientists want to to make the deserts into good land again.
A. carry water B. grow food
C. do nothing D. study a lot
3.Why are green plants and grass helpful?
A. They can hold the water.
B. They can stop the wind from blowing the earth away.
C. They can keep the earth wet.
D. All the above.
4.After reading this, we learn that .
A. it is good to get rid of (去除) the grass in the deserts
B. all places without much rain will become deserts
C. plants can keep (阻止) dry land from becoming deserts
D. it is better to grow crops（农作物）on dry land than to grow grass
八年级英语阅读理解中等难度题查看答案及解析
Scientists are trying to make the deserts(沙漠) into good land again. They want to bring water to the deserts，so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the deserts. People are doing bad things to the earth.
Some places on the earth don't get much rain. But they still don't become desert. This is because some green plants are growing there. Small green plants and grass are very helpful to dry places. Plants don't let the hot sun make the earth even drier. Plants don't let the wind blow the earth(泥土) away.When a little bit of rain falls，the plants hold the water.Without the plants，the land can become a desert much more easily.
1.Why can the land become a desert?
A. Some places don't get much rain.
B. Plants don't let the hot sun make the earth even drier.
C. People are doing bad things to the earth.
D. Scientists haven't learnt enough about the deserts.
2.Scientists ______to make the deserts into good land again.
A. carry water B. grow food
C. do nothing D. study a lot
3.Which is NOT true?
A. The land never stops becoming desert.
B. Scientists ask the people to live in the deserts and grow food there.
C. People do bad things to the earth.
D. Scientists may not be able to change the deserts.
4.Why are green plants and grass helpful?
A. They can hold the water.
B. They can stop the wind from blowing the earth away.
C. They can keep the earth wet.
D. All the above are right.
5.Which is the best title(题目) for the passage?
A. The Desert Problem.
B. People Make Deserts.
C. Green Plants and Grass.
D. The Desert，the Tree and theWater.
八年级英语阅读理解中等难度题查看答案及解析
Scientists are trying to make the deserts into good land again. They want to bring water into the deserts, so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time. Why is more and more land becoming desert? Scientists think that people make deserts. People are doing bad things to the earth. Some places on the earth don’t get much rain. But they still don’t become deserts. This is because some plants are growing there. Small green plants and grass are very important to dry places. Plants don’t let the hot sun make the earth even drier. Plants don’t let the wind blow the dirt away. When a little bit of rain falls, the plants hold the water. Without plants, the land can become a desert much more easily.
阅读短文回答问题。
1.What are scientists trying to do now?
______________________________________
2.What happens to the earth?
______________________________________
3.Why is more and more land becoming desert?
_____________________________________
4.Are plants important to the desert?
______________________________________
5.What can plants do ?(回答一条即可)
_______________________________________
八年级英语任务型阅读困难题查看答案及解析
Scientists （科学家） are trying to make the deserts （沙漠） into good land again. They want to bring water to the deserts, so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming deserts all the time. Scientists may not be able to change the deserts. Scientists think that people make deserts. People are doing bad things to the earth.
Some places on the earth don’t get much rain. But they still don’t become deserts. This is because some green plants are growing there. Small green plants and grass are very helpful to dry (干旱的)places. Plants don’t let the hot sun make the earth even drier. Plants don’t let the wind blow the earth away. When a little bit of rain falls, the plants hold the water. Without plants, the land can become deserts much more easily.
1.Why can the land become deserts?
A. Some places don’t get much rain.
B. Plants don’t let the hot sun make the earth even drier.
C. People don’t keep the earth well.
D. Scientists haven’t learnt enough about the deserts.
2.Scientists are to make the deserts into good land again.
A. carrying water B. growing food C. doing nothing D. studying a lot
3.Which is NOT true?
A. The land never stops becoming deserts.
B. Scientists ask people to live in the deserts and grow food there.
C. People do bad things to the earth.
D. Scientists may not be able to change the deserts.
4.Why are green plants and grass helpful?
A. They can hold the water.
B. They can keep the earth wet.
C. They can stop the wind from blowing the earth away.
D. All the above.
5.Which is the best title（题目）for the passage?
A. The Desert Problem
B. People Make Deserts
C. Green Plants and Grass
D. The Deserts, the Tree and the Water
八年级英语阅读理解中等难度题查看答案及解析
Scientists are trying to make some small cars that may some day take the place of today’s big cars. If everyone drives such cars in the future, there will be 1_ pollution in the air. There will _2 be more space or parking cars in cities, and the _3_ will be less crowded. Three such cars can fit in__4__ that it is now needed for one car of the usual size.
The little cars will __5___ much less to own and to drive. Driving will be __6___, too, as these little cars can go only 65 kilometers per hour. The little cars of __7___ will be fine or getting out of the city, but they will not be useful for__8__ trips. Little cars which are powered by gasoline( 汽油 ) will go 450 kilometers __9___ needing to stop for more gasoline .
If big cars still are used together with the small ones, _10__ sets of roads will be needed in the future. Some roads will be used for the big, fast cars, and some roads will be needed for the slower, small ones.
1. A．much B．less C．small D．more
2. A．have B．also C．too D．less
3. A．spaces B．streets C．shops D．building
4. A．spaces B．the rooms C．the group D．the space
5. A．spend B．take C．cost D．pay
6. A．faster B．safer C．quick D．dangerous
7. A．today B．todays C．the past D．the future
8. A．short B．long C．any D．the shortest
9. A．after B．then C．before D．while
10. A．few B．two C．many D．little
八年级英语完型填空中等难度题查看答案及解析