題目列表(包括答案和解析)
D
Antarctica is the southernmost place on Earth, and it is larger than the United Sates and 95% of it is covered with ice. The ice is 5 kilometers thick at places and it never melts. At least that is what we thought, but let us keep it that way for now.
The ice seems to be alive as it works its way towards the seA． It forms an ice shelf over the water. The edge breaks away from the shelf and falls into the seA． From here it drifts. Now big pieces of ice become icebergs that can be 160 km long. They now drift north until they finally melt and become part of the ocean. This process is part of a bigger process which in turn forms a cooling system for Earth. This is so important that no country is allowed to control this areA． The treaty (agreement) signed by 12 countries at first and later joined by more, was to prevent any country harming the planet with irresponsible behavior.
The treaty basically states that:
Antarctica can be used for peaceful purposes only.
No country may build a military base there.
No country may do a nuclear test there.
No country may dump nuclear waste there.
Scientists working there will share their information.
Some other rules are there to protect the penguins and seals.
No dogs may run loose.
No planes may land near large groups of animals.
No guns, explosives, or tractors may be used near the animals.
Most important is that every member can inspect any of the other bases if he suspects that the treaty rules are being broken.
While the treaty is not foolproof（萬(wàn)無(wú)一失的）, it does play a very important part in the protection of AntarcticA． The more people realize the effects that pollution has on this continent, the bigger the pressure will be on Governments to change the way they look at pollution.
69．Why was it important to sign a treaty for Antarctica?
A．Because the ice on Antarctica will finally melt into the ocean.
B．Because Antarctica is covered with 5 kilometers thick ice.
C．Because Antarctica balances the temperature of Earth.
D．Because there are many big icebergs in AntarcticA．
70．What is the process of the movement of ice in Antarctica?
A．Ice shelf---sea water---iceberg---ice.
B．Sea water---ice---iceberg---ice shelf.
C．Iceberg---ice shelf---ice---sea water.
D．Ice---ice shelf---iceberg---sea water.
71．What is included in the Antarctica treaty?
A．There is no secret research information in AntarcticA．
B．Dogs are not allowed to be raised in AntarcticA．
C．Waste can’t be thrown away in AntarcticA．
D．People can’t bring their guns to AntarcticA．
Section B
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
|
A．understand |
B．environmentally |
C．gamble |
D．involve E. necessary |
F. potential G. shortcuts H. specific I. structurally J. surprises
The home inspection is an essential part of any home buying process. Without a home inspection, you can never be sure what you're getting and when buying a home that's a lot of money to __41__ on uncertainty. A home inspection ensures that there are no __42__ and that you can enjoy your future home for years to come.
A home inspection will __43__ hiring a company to send a home inspector out to go through your potential home with you and thoroughly inspect everything to make sure there are no major problems that might not be obvious to the average home owner. He will go over all the wiring, plumbing(管道系統(tǒng)), the roof and the foundation to make sure everything is __44__ sound. At the same time as the home inspection it's always a good idea to have a pest (昆蟲(chóng)) inspection to check for damaging insects such as carpenter ants.
Different states have different regulations for home inspections. So you need to be aware of what the requirements of your __45__ state are and make sure the inspector covers these areas. It’s a good idea to ask to see any __46__ certification, which a professional home inspector will gladly show you. It’s also best to make certain that your specific inspector has experience with your region. A local home inspector will better __47__ conditions in your area such as damp basements, winter damage to roofing or cracks in the foundation caused by normal settling.
A thorough home inspection takes time, so don’t settle for someone that you feel might be taking __48__. Many home inspectors are happy to have you accompany them on the inspection. A walk through with the home inspector is a great time to learn about how your home works and what to look for in terms of __49__ trouble.
A home inspection is just absolutely necessary and one will provide much peace of mind once you move into your new home.
Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants produce volatile compounds (揮發(fā)性化合物) —— chemicals that easily change from a liquid to a gas. A flower’s sweet smell, for example, comes from such volatile compounds to attract insects such as bugs and bees.
Plants can also discover volatile compounds produced by other plants. A tree under attack by hungry insets, for instance, may give off these chemicals in order to let other trees know about the attack. In response, the other trees may send off their chemicals to keep the bugs away —— or even chemicals that will attract the bugs’ natural enemies.
Now scientists have created a quick way to understand what plants are saying: a chemical sensor (傳感器) called an “electronic nose”. The “e-nose” can tell such compounds as plants make. When plants are attacked, scientists say, the e-nose could help quickly decide whether plants are being eaten by insects. But today, the only way to spot such insects is to inspect individual plants by observing them. This is a challenging task for managers of greenhouses, including those that can house thousands of plants. The research team is working with an e-nose that can recognize volatile compounds. Inside the device, 13 sensors chemically react with volatile compounds based on the interactions (相互作用), and then the e-nose will give off electronic signals that the scientists can analyze by using computer software.
To test the e-nose, the team presented it with healthy leaves from cucumber, pepper and tomato plants, all being common greenhouse crops. Then scientists collected samples of the air around damaged leaves from each type of crop. These plants had been damaged either by insects or by scientists who made holes in the leaves with a hole punch (打孔器).
The e-nose, it turns out, can identify healthy cucumber, pepper and tomato plants based on the volatile compounds they produce. It could also identify tomato leaves that had been damaged. But even more impressive, the device could tell which type of damage —— by insects or with a hole punch —— had been done to the tomato leaves.
With some fine-tuning (微調(diào)), a device like the e-nose can one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A device like this can also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareva, a biochemist at Purdue University in West Lafayette, India, who studies smells of flowers and plants. Hopefully, scientists believe, the device can bring large benefits to greenhouse managers in the near future.
1.We learn from the text that plants communicate with each other by ______.
|
A．making some sounds |
|
B．waving their leaves |
|
C．producing some chemicals |
|
D．sending out electronic signals |
2.What did the scientists do to find out if the e-nose worked?
|
A．They fixed 13 sensors inside the device. |
|
B．They presented it with all common crops. |
|
C．They collected different damaged leaves. |
|
D．They do tests on damaged and healthy leaves. |
3.According to the writer, the most amazing thing about the e-nose is that it can ______.
|
A．pick out ripe fruits quite expertly |
|
B．spot the insects in a very quick way |
|
C．tell different damages to leaves |
|
D．recognize unhealthy tomato leaves |
4.We can infer from the last paragraph that the e-nose ______.
|
A．is unable to tell the smell of flowers |
|
B．is not yet tested in greenhouses |
|
C．is designed by scientists at Purdue |
|
D．is helpful in killing harmful insects |
第三節(jié)：完型填空（共20小題；每小題1.5分，滿分30分）
閱讀下面短文，從短文后所給各題四個(gè)選項(xiàng)（A,B,C,D）中，選出可以填入空白處的最佳選項(xiàng)，并將答案寫(xiě)在答題卡上。
Tom is a worker in my factory and he is a little bit dirty. I have been taking 21 of him for years and years, he always wears an old red hat and carries a 22 bag. He usually spends his break time and his lunchtime by walking around to 23 the unused tins around.
Once I saw him by his 24 , with a lot of rubbish bags, which were full of aluminum(鋁) tins. He threw them into the back of his car and then 25 the car. Being very curious, I got into my car to 26 him. He drove 27 he reached the entrance to a wide, empty parking area, but did nothing more.
Today, I was 28 one of the broken machines during lunchtime when this“tin man”came along with his bag. As usual, he 29 the tins around the place. My 30 , who was worried about how the 31 caused by the machine would affect production, was standing there watching me.
When I finished my job, my manager asked the “tin man” about what he would 32 the tin that he had collected. I had 33 even thought about asking this kind of question, 34 I had always thought that this “tin man” would sell the 35 to the recycling place
36 ,this “tin man” answered, “I will give them to my neighbor, 37 has epilepsy(癲癇病) and is unable to work.” I was 38 to hear this, and I asked him, “You 39 you are collecting all those tins just to help your neighbor?”
“I know it doesn’t help very much,” he said, “ 40 I try my best to help him.” It was the most beautiful moment in my life and made me feel very humble(卑鄙的).
21. A. hold B. care C. charge D. notice
22. A. plastic B. rubbish C. paper D. metal
23. A. collect B. find C. hide D. spread
24. A. house B. store C. machine D. car
25. A. got out of B. broke up C. jumped into D. settled down
26. A. follow B. block C. inspect D. catch
27. A. since B. until C. when D. after
28. A. decorating B. performing C. repairing D. selecting
29. A. turned up B. put up C. set up D. picked up
30. A. manager B. workmate C. neighbor D. friend
31. A. power B. delay C. signal D. harm
32. A. do with B. deal with C. go with D. put up with
33. A. seldom B. always C. nearly D. never
34. A. unless B. because C. though D. if
35. A. machine B. cars C. tins D. bags
36. A. Certainly B. Briefly C. Surprisingly D. Fortunately
37. A. who B. whom C. which D. that
38. A. shocked B. interested C. satisfied D. concerned
39. A. announce B. mean C. say D. declare
40. A. instead B. however C. but D. and
第二節(jié) 完形填空(共20小題；每小題。1.5分，滿分30分)
閱讀下面短文，掌握其大意，然后從36～55各題所給的四個(gè)選項(xiàng)(A、B、C和D)中，選出最佳選項(xiàng)。
What can you do to make sure your car isn't stolen? Well, first and most obviously, ____36____ the car when you leave it. That includes locking the boot for luggage and closing all the windows. Even a ____37____ break allows a thief to insert a wire to force open the lock button. Of course, don't leave the keys hanging in the ignition (點(diǎn)火器). And don't hide a ____38____ key inside or outside the car — thieves know all the hiding places. If your car ____39____, lock up before you go for help. ____40____ you can't start the car, a thief may be able to.
Now since dusk to mid-evening are the ____41____hours for car thieves, make sure you park in a ____42____ area, where there are plenty of passers-by, ____43____, near a busy store or a restaurant. Avoid leaving your keys with a garage or parking-lot assistant: choose the place you park ____44____.
Keep your driver's license in your wallet or purse, ____45____ in some small separate divisions of your car. You should also have a record of your car's ____46____ statistics both in your wallet and ____47____ at home. This can help with recovery ____48____ stealing.
And finally, it's a good idea to ____49____ some kind of safety equipment. There is a ____50____ available from alarm systems that set off a siren (警報(bào)) if an ____51____ is made to force open the car ____52____ any way, to fuel shut-off systems and time delay ignition systems. A warning sign will also help ____53____ would-be thieves. They don't want to waste time on trying to steal a ____54____ car.
So, help yourself put car thieves out of ____55____ by always locking your car, fixing anti-stealing systems and co-operating with the police by reporting any attempt at stealing.
36. A. start B. open C. lock D. stop
37. A. big B. tiny C. cosy D. long
38. A. useful B. special C. different D. spare
39. A. breaks down B. breaks up C. breaks in D. breaks out
40. A. Only if B. If only C. Even if D. As if
41. A. tiresome B. golden C. dangerous D. nervous
42. A. well-organized B. well-known C. well-educated D. well-lighted
43. A. say B. speak C. tell D. talk
44. A. oneself B. itself C. yourself D. himself
45. A. nor B. not C. or D. either
46. A. extra B. accurate C. common D. vital
47. A. somewhere B. anywhere C. everywhere D. nowhere
48. A. instead of B. in case of C. on account of D. for fear of
49. A. clean B. stick C. fix D. repair
50. A. category B. design C. branch D. range
51. A. announcement B. attempt C. expression D. explanation
52. A. in B. on C. by D. with
53. A. encourage B. inspect C. inspire D. discourage
54. A. protected B. decorated C. furnished D. examined
55. A. control B. sight C. business D. order
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無(wú)主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話：027-86699610 舉報(bào)郵箱：58377363@163.com