surface n. 表面 查看更多

 

题目列表(包括答案和解析)

At one time or another most farmers have problems with mice. This is especially true for grain farmers. Mice eat a lot of grain. They also carry diseases(疾病), which people can get from eating or touching grain the mice have made dirty. Farmers can use special grain storage building or they can kill the mice. However, both methods can be costly. Farmers must buy materials to build the special grain storage buildings or chemical poisons to kill the mice.

Here is a way to kill mice without spending a lot of money. It is a simple but effective king of mouse trap. The method is first used by some farmers in the west African country of Mali. An agricultural expert in Mali reported about the Mali mouse trap in a magazine. The expert reported that his gardener caught 150 mice in just one night. The gardener used four traps. The trap is easy to make. First, remove the top from a 20 liter metal or plastic container(容器). Put it n a hole in the ground. The top edge of the container should be the level with the surface of the ground. Fill the container with water to within eight centimeters of the top. Add tiny pieces of grain wastes. They should float on the water. Also put some wastes on the ground near the trap. During the night, mice will come out to eat the grain wastes. They will fall into the container and drown. Replace the food in the trap every night.

56. According to the passage,       used the mouse trap first.

   A. an agricultural expert in the west Africa      B. farmers in the United States

C. an American gardener                    D. farmers in Mali

57. What does the passage mainly tell us?

   A. A simple and effective method used by farmers to kill mice.

   B. Methods used by farmers to kill mice.

   C. Farmers have problems with mice.

   D. How to kill mice.

58.      is not needed in making the mouse trap.

   A. Water                            B. A container

   C. chemical poison                    D. Food

59. Which of the following can’t protect grain from being eaten by mice?

A. A special grain storage building.          B. Chemical poisons.

   C. A mouse trap.                         D. A hole in the ground.

 

查看答案和解析>>

Free energy is everywhere around us. There are many ways to make and collect energy from various sources like sun, wind and water. People also realize that everyday stuff can be a source of energy too. For example, riding a bike, running or just walking, etc. We simply have to change our way of thinking if we want to change the world.

So comes the idea of solar roadways. Are they the road of future? Why use roads just for driving and collecting tolls (过路费)? Why don’t we use them for collecting energy?

The US Department of Transportation recently awarded $100,000 to Solar Roadways to build the first ever Solar Road Panel. So how do these future roads work?

The Solar Road Panels will contain embedded (嵌入的) LEDs which “paint” the road lines from beneath to provide safer nighttime driving as well as to give drivers instant instructions such as detour (绕行) ahead. The road will be able to sense wildlife on the road and can warn drivers to “slow down”. There will also be embedded heating elements in the surface to prevent snow and ice buildup, providing safer winter driving.

Replacing asphalt (沥青) roads and parking lots with Solar Roadway Panels will be a major step toward stopping climate change. Fully electric vehicles will be able to recharge along the roadway and in parking lots, finally making electric cars practical for long trips.

We just can’t wait to see more of these roads all over the world in the near future.

1.The first paragraph serves as a(n)______.

A. argument      B. comment       C. explanation      D. background

2.Which of the following is NOT true of LEDs?

A. They color the road lines.   

B. They are embedded in the Solar Road Panels.

C. They are beneficial for nighttime driving.

D. They can provide instant instructions.

3. When some animals are on the solar road, what will the road do?

A. Guide them to a safer place.           B. Remind drivers to drive slowly.

C. Frighten them away from the road.      D. Advise drivers to choose another way.

4. From the text, we can know that the Solar Road Panels can______.

A. provide heat for drivers in winter  

B. guide drivers who get lost on the highway

C. melt snow and ice soon in winter        

D. help drivers see the road clearly in the sun

 

查看答案和解析>>

完型填空(共20小题;每小题1.5分,满分30分)
I had a friend who visited me from out of town and I wanted to show him the CN Tower. It was one of the tallest structures on the earth. So I thought it would offer a(n)   36  sight.
We were standing in line for 45minutes to enjoy the    37   up to the watch point. When we got there, we went around the   38     of the tower and saw the hard wire fence  39     to the structure serving as a barrier. We went back inside to look for the glass floor that provided a direct view   40     . As soon as both of us  41     , we stopped before walking onto it. We found that our legs began to   42  . I stopped for a minute considering the step, taking several seconds to   43     the edge before moving.
And then I had a thought in my mind:“It is far   44     compared to any other floor in this building. There is no real danger to me — it’s    45   an illusion. Look at all the people standing on it, and think about those who have stood on it before.”I began to  46     that step onto the glass floor. I didn’t look down —  47    not for a few minutes.
I walked on the    48   and looked around and thought about how  49   the experience was. I even found myself jumping up and down. There was no  50   , and it was certainly an illusion.
I considered how many things in our lives we  51    and exactly how many of them are actually illusions. I thought about all the things we   52    ourselves from doing because we have  53   ourselves into thinking there’s risk. I thought about all the things that I still have yet to do that appeared  54   . I was glad to discover that although fear isn’t a stranger to me, my desire to live a life without    55   has a much stronger pull.

【小题1】
A.expressiveB.impressiveC.frighteningD.beneficial
【小题2】
A.busB.ladderC.carD.elevator
【小题3】
A.outsideB.topC.centerD.surface
【小题4】
A.connectedB.surroundedC.referredD.combined
【小题5】
A.aroundB.upC.downD.out
【小题6】
A.understoodB.approachedC.talkedD.returned
【小题7】
A.waveB.moveC.trembleD.wander
【小题8】
A.look overB.think overC.look upD.think up
【小题9】
A.tighterB.tallerC.weakerD.stronger
【小题10】
A.happilyB.simplyC.greatlyD.relatively
【小题11】
A.takeB.chooseC.decide D.pick
【小题12】
A.at mostB.at leastC.at last D.at best
【小题13】
A.fenceB.floorC.edgeD.tower
【小题14】
A.gratefulB.usefulC.wonderfulD.helpful
【小题15】
A.deathB.warnC.troubleD.danger
【小题16】
A.handleB.ignoreC.fearD.hide
【小题17】
A.block B.protectC.helpD.separate
【小题18】
A.forcedB.advisedC.enteredD.led
【小题19】
A.amazingB.worryingC.excitingD.interesting
【小题20】
A.cost B.doubtC.regretD.waste

查看答案和解析>>

完型填空(共20小题;每小题1.5分,满分30分)

I had a friend who visited me from out of town and I wanted to show him the CN Tower. It was one of the tallest structures on the earth. So I thought it would offer a(n)   36  sight.

We were standing in line for 45minutes to enjoy the    37   up to the watch point. When we got there, we went around the   38     of the tower and saw the hard wire fence  39     to the structure serving as a barrier. We went back inside to look for the glass floor that provided a direct view   40     . As soon as both of us  41     , we stopped before walking onto it. We found that our legs began to   42  . I stopped for a minute considering the step, taking several seconds to   43     the edge before moving.

And then I had a thought in my mind:“It is far   44     compared to any other floor in this building. There is no real danger to me — it’s    45   an illusion. Look at all the people standing on it, and think about those who have stood on it before.”I began to  46     that step onto the glass floor. I didn’t look down —  47    not for a few minutes.

I walked on the    48   and looked around and thought about how  49   the experience was. I even found myself jumping up and down. There was no  50   , and it was certainly an illusion.

I considered how many things in our lives we  51    and exactly how many of them are actually illusions. I thought about all the things we   52    ourselves from doing because we have  53   ourselves into thinking there’s risk. I thought about all the things that I still have yet to do that appeared  54   . I was glad to discover that although fear isn’t a stranger to me, my desire to live a life without    55   has a much stronger pull.

1.                A.expressive      B.impressive      C.frightening    D.beneficial

 

2.                A.bus            B.ladder          C.car  D.elevator

 

3.                A.outside         B.top            C.center   D.surface

 

4.                A.connected      B.surrounded      C.referred  D.combined

 

5.                A.around         B.up             C.down D.out

 

6.                A.understood     B.approached     C.talked    D.returned

 

7.                A.wave          B.move          C.tremble  D.wander

 

8.                A.look over       B.think over       C.look up   D.think up

 

9.                A.tighter         B.taller           C.weaker   D.stronger

 

10.               A.happily         B.simply          C.greatly    D.relatively

 

11.               A.take           B.choose         C.decide    D.pick

 

12.               A.at most         B.at least         C.at last     D.at best

 

13.               A.fence          B.floor           C.edge D.tower

 

14.               A.grateful        B.useful          C.wonderful D.helpful

 

15.               A.death          B.warn           C.trouble    D.danger

 

16.               A.handle         B.ignore         C.fear  D.hide

 

17.               A.block          B.protect         C.help  D.separate

 

18.               A.forced         B.advised         C.entered   D.led

 

19.               A.amazing        B.worrying        C.exciting   D.interesting

 

20.               A.cost           B.doubt          C.regret D.waste

 

 

查看答案和解析>>

阅读理解(共20小题; 每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

I felt encouraged by his words and began to swim more calmly.But my clothes stuck to me like a heavy weight.I could hardly stay above the surface.

Counsel saw this.“Shall I cut them?”he asked.

With a knife he cut my clothes from top to bottom and took them of quickly while I swam for both of us.

Then I did the same for Counsel,and we continued to swim near each other.

But we were in serious trouble.The crew(船员)might not have noticed our disappearance.

And if they had,they could not return because the rudder(舵)had broken.Counsel thought of all this,and calmly made his plans.We decided to wait for the ship as long as possible,because we had no other hope of safety.I suggested that we save our strength so that both of us would not be tired out at the same time.This was how we did it:While one of us lay on his back,quite still,with arms crossed and legs stretched out(伸直),the other would swim and push him along.We changed every ten minutes or so.In this way we could swim for hours,perhaps till daylight.The crash(破裂声)of the ship and the whale(鲸)had appeared at about eleven o’clock.We had about eight hours to swim before daylight.This seemed possible,if the sea remained calm.

1.What happened to the man who told the story?

A.He and his companion got into the water to test their strength.

B.He jumped into the water to save the broken rudder.

C.He was knocked into the water by his enemy.

D.He was thrown into the sea when the ship struck a whale.

2.Why did the two men cut their clothes?

A.Because no people helped them to take off their clothes.

B.Because they couldn’t take off their clothes on the sea.

C.Because they wanted to get rid of their clothes quickly.

D.Because they wanted to lifebuoys(救生圈)with their clothes.

3.What does the word “still” in the last paragraph mean?

A.not moving

B.even

C.yet

D.however

4.n order to save their strength,______.

A.one of them pushed the other while swimming and then they changed

B.they both swam calmly

C.they crossed their arms and stretched their legs on the water

D.they lay on their backs instead of swimming

5.Which one of the following is true?

A.Neither of the two men was good swimmers.

B.The sea was calm before eleven o’clock that night.

C.The story took place at night.

D.The two men had to swim eight hours to catch up with the ship.

 

查看答案和解析>>


同步练习册答案