Mosquitoes have an extraordinary ability to target humans far away and fly straight to their unprotected skin. Regrettably，mosquitoes can do more than cause an itchy(发痒的）wound. Some mosquitoes spread several serious diseases，including Dengue，yellow fever and malaria.
Over one million people worldwide die from these diseases each year. New research now shows how mosquitoes choose who to bite.
Mosquitoes need blood to survive. They are attracted to human skin and breath. They smell the carbon dioxide gas，which all mammals breathe out. This gas is the main way for mosquitoes to know that a warm-blooded creature is nearby.
But mosquitoes also use their eyes and sense of touch. Michael Dickinson is a professor at the California Institute of Technology. His research shows how these small insects，with even smaller brains，use three senses to find a blood meal.
Michael Dickinson’s team used plumes—a material that rises into the air of carbon dioxide gas into a wind tunnel. They then used cameras to record the mosquitoes. The insects followed the plume.
Then，the scientists placed dark objects on the lighter colored floor and walls of the tunnel. Mr. Dickinson said，at first，the mosquitoes showed no interest in the objects at all. “What was quite striking and quite surprising is that the mosquitoes fly back and forth for hours. These are hungry females and they completely ignore the objects on the floor and wall of the tunnel. But the moment they get a hit of CO2. they change their behavior quite obviously and now would become attracted to these little visual blobs (斑点).”
This suggested to the researchers that a mosquito’s sense of smell is more important in the search for food. Once mosquitoes catch a smell of a human or animal, they also follow visual signals.
1.What do mosquitoes mainly use to find their targets?
A. Sense of smell. B. Sense of touch.
C. Sense of sight. D. Smart brains.
2.The first response of the mosquitoes to the objects in the experiment is .
A. to fly to the dark ones
B. to catch and stick to them
C. to take no notice of them
D. to attach themselves to them
3.How can we avoid being attacked by mosquitoes according to the text?
A. Don’t let them see us.
B. Use dark objects to stop them.
C. Make them fly back and forth for hours.
D. Attract them to objects full of carbon dioxide gas.
4.What can be the best title for the text?
A. How Do Mosquitoes Survive?
B. Why Do Mosquitoes Need Blood?
C. How Do Mosquitoes Choose to Bite You?
D. Why Do Mosquitoes Attack the Human Being?
寒假乐园北京教育出版社系列答案科目：高中英语 来源：2014-2015学年海南省高三5月模拟英语试卷（解析版） 题型：书面表达
请根据下列表格中所提供的材料，结合你的生活经历，展开想象，以学生的身份用英语写一篇短文。注意：1.不要逐句翻译；2.词数100左右,开头已写好，不计入总词数。
We all have some keys in life, some visible and others invisible
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科目：高中英语 来源：2016届浙江绍兴第一中学高三下学期开学回头考英语试卷（解析版） 题型：阅读理解
Paris
Passengers carried per day: 4.4m
Cost of ticket: 80p flat fare
Length: 131 miles Lines: 14 Stations: 297
In Paris there are pleasures for those who use the Metro(地铁) — many of them artistic. The graceful Art Nouveau dragon-fly entrances are just the most noticeable on a Metro system which celebrated its 100th anniversary by spending 30 million francs (£2.9million) on making its stations works of art. On my way home I pass Bonne Nouvelle station in the heart of Paris’s cinema district. There, during the cinema festival this summer, special lighting effects dot the platforms and films are projected onto the large advertising boards.
More than anything the metro is efficient. “When I worked on line 4”, says a retired driver, “we had exactly 30 minutes and 15 seconds to complete the journey. If it took any longer, they cut our pay.” But there are problems. Many Metro stations have too many stairs, and changing lines at big interchanges(交换) can be tiresome.
Moscow
Passengers carried per day: 9m
Cost of ticket: 12p
Length: 164 miles Lines: 11 Stations: 162
The first underground passage for the Moscow Metropolitan started in 1932. Three years later the trains started running. They haven’t stopped since— every 90 seconds or two minutes during rush hour, every five minutes the rest of the time, from 6 a.m. till 1 a. m. There may be a crowd of people but there is seldom a wait.
The trains take you through spacious and spotless stations. For tourists it’s a major sightseeing attraction: from Russian Art Deco to neo-classical, the Metro stations are not to be missed.
Tokyo
Passengers carried per day: 7m
Cost of ticket: 90p ~ £1.68
Length: 177 miles Lines: 12 Stations: 209
Trains do not just arrive on time in Tokyo. They stop right on the platform mark so that passengers can line up knowing exactly where the doors will open. Train driving is a respectful job for life, for which the applicants must pass a strict screening of health checks, interviews and written exams before they can put on the enviable uniform, cap and white gloves.
However, overcrowding means it is far from perfect. At rush hours, some stations employ part-time platform staff to push in passengers. Carriages can be filled to 184% of capacity(容量). The main reason for such conditions is that the Tokyo subway station system has only 15 miles of track for every 1 million people, compared to 36 on the London Underground. New lines are under construction, but at a cost of £500,000 per meter of rail. Progress has been slow.
Mexico City
Passengers carried per day: 4.2m
Cost of ticket: 11p flat fare
Length: 99 miles Lines: 11 Stations: 175
Fast, relatively safe, and very cheap, Mexico City’s underground is an ideal place of order and efficiency compared to the disorders above. The Mexican capital’s underground system is the biggest in the continent and one of the most subsidized (获得补助的) networks in the world.
The first trains leave the station at 5 a.m. and the last after midnight as the crowd move from the outskirts of the 20 million-strong megacity (大城市). Mexico City’s Metro also attracts a sizeable group of passengers who are unwilling to spend hours in traffic jams. There is a master plan to build new lines and extend existing one, but financial constraints (约束) complicated by the fact that the system runs through different jurisdicitons (管辖权) mean progress is slow.
1.Metro rail drivers in Paris must____.
A. keep to the train schedule strictly
B. complete the journey gracefully
C. stop right on the platform mark
D. understand the special lighting
2.In which two cities can travelling by underground be a sightseeing experience?
A. Moscow and Tokyo B. Paris and Moscow
C. Paris and Mexico City D. Tokyo and Mexico City
3.Which word may best describe the Tokyo underground trains?
A. Cheap B. Efficient C. Crowded D. Slow
4.Why is the expansion of the underground system in Mexico City slow?
A. The plan to extend existing lines is impractical.
B. The government offers little financial support.
C. People are unwilling to help build new lines.
D. The lines involve several authorities.
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科目：高中英语 来源：2016届浙江绍兴第一中学高三下学期开学回头考英语试卷（解析版） 题型：单项填空
–Don’t _____ this plan to the public until we give you the go-ahead.
–OK. I will not.
A. release B. relate C. retell D. relieve
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科目：高中英语 来源：2016届湖北沙中学高三下学期第一次半月考英语试卷（解析版） 题型：短文改错
短文改错
短文中共有l0处语言错误，每行中最多两处错误。错误涉及一个单词的增加、删除或修改。
增加：在此处加一个漏字符号(^)，并在其下面写出增加的词；
删除：把多余的词用斜线(＼)划掉；
修改：在错的词下划一横线：并在其下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
Mike was one of my father’s younger brother. He has been died of cancer for two years. When I was a teenager, he taught us how to hunt in the woods used the hours before dawn. We usually left home at three o’clock in the morning, stayed in local restaurant for breakfast, and then travel on to one of his hunting destinations. Just after dawn, he would find the right spot in the woods. He would show me how not to make a sound and a movement. Though I never hunted an animal successfully, but I learned to be brave and patiently through the experience.
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科目：高中英语 来源：2016届江苏清江中学高三2月月考英语试卷（解析版） 题型：阅读理解
D
For eighty four days old Santiago had not caught a single fish. At first a young boy, Manolin, had shared his bad fortune, but after the fortieth luckless day the boy's father told his son to go in another boat. From that time on, Santiago worked alone. The boy loved the old fisherman and always helped him with money and food. Usually, they would talk about the fish they had taken in luckier times or about American baseball after supper, while at night, alone in his cottage, Santiago dreamed of lions on the beaches of Africa, where he had gone on a sailing ship years before. He no longer dreamed of his dead wife.
On the eighty-fifth day, Santiago set off to fish before dawn. Two of his baits (饵) were fresh tunas (金枪鱼) the boy had given him. Then he set his lines which went straight down into deep dark water.
As the sun rose he saw other boats in toward shore. A man of war bird showed him where dolphin were chasing
some flying fish. This time Santiago saw tuna jumping in the sunlight. A small one took the hook on his line. Pulling the fish aboard, the old man thought it a good fortune.
Toward noon a marlin, a common fish in the sea, started eating the bait which was one hundred meters down. Gently the old man played the fish, a big one, as he knew from the weight on the line. At last he struck to settle the hook. The fish did not come out of the surface. Instead, it began to pull the boat to the northwest. The old man followed it. Although he was alone and no longer strong, he had his skill and knew many tricks. He waited patiently for the fish to be tired .
It became cold after the sunset. Suddenly the marlin leaned, pulling Santiago forward on his face and cutting his cheek. By dawn his left hand was cramped (抽筋的). The fish had headed northward; there was no land in sight. Hungry, he cut pieces from the tuna and chewed them slowly. That morning the fish jumped. Seeing it leap, Santiago knew he had hooked the biggest marlin he had ever seen. Then the fish went down and turned toward the east. Santiago drank a little water from the bottle during the hot afternoon. Close to nightfall a dolphin took the small hook he had baited. He lifted it aboard, careful. After he had rested, he cut meat from the dolphin and kept also the two flying fish he found in its stomach. That night he slept. He awoke to feel the line running through his fingers as the fish jumped. Making the line loose slowly, he tried to tire the marlin. After the fish slowed its run, he washed his cut hands in sea water and ate one of the flying fish. At sunrise the marlin began to circle. Faint and dizzy, he worked to bring the big fish nearer with each turn. Almost exhausted, he finally drew his big fish alongside and drove in the harpoon (鱼叉). The fish was two feet longer than the boat. No fish like it had ever been seen in Havana harbor. An hour later, he sighted the first shark, a fierce Mako, and it came in fast to chase after the dead marlin. The old man struck the shark with his harpoon. The Mako rolled and sank, carrying the harpoon with it and leaving the marlin bloody. He knew the smell would spread. Watching, he saw two sharks closing in. He struck at one with his knife and watched it sliding down into deep water. He killed the other while it tore at the flesh of the marlin. When the third appeared, he thrust (刺) it with the knife. The other sharks came at sunset. At first he tried to beat them with the tiller (舵柄) from the boat, but his hands were bleeding and there were too many in the sea. In the darkness, as he steered (掌舵)toward the harbor of Havana, he heard them hitting the boat again and again. But the old man thought only of his steering and his great tiredness. He had gone out too far and the sharks had beaten him. He knew they would leave him nothing but the stripped skeleton of the big marlin.
All lights were out when he sailed into the little harbor and beached his boat. He could just make out the white backbone and the upstanding tail of the fish. Once he fell under their weight and lay patiently until he could gather his strength to go on. In his cottage he fell on his bed and went to sleep.
1.The above story is most likely to be adapted from __________.
A. The Adventures Of Tom Sawyer
B. The Old Man And The Sea
C. The Son Of The Sea
D. Treasure Island
2.According to the text, which statement is NOT true about Manolin?
A. The boy left Santiago at last.
B. The boy had mercy on Santiago.
C. The boy was Santiago's adopted son.
D. The boy showed his great concerns to Santiago.
3.Why did the man feel that he could be lucky this time?
A. Because a lot of sharks followed his boat.
B. Because a small tuna took the hook on his line.
C. Because he dreamed about the American lions.
D. Because he saw many flying fish were chased by the dolphins.
4.Why does Santiago let the marlin lead his boat instead of pulling the big fish up?
A. He was too tired and hungry to pull the big fish up.
B. He wanted to use the marlin as a bait to catch the sharks.
C. His experience told him not to do so before the fish was tired out.
D. He wanted to kill the marlin first before he pulled it up to the boat.
5.Which sentence below can be used to best describe Santiago's character?
A. "He no longer dreamed of his dead wife."( in Para. 1)
B. "Although he was alone and no longer strong, he had his skill and knew many tricks."( in Para.4)
C. "Almost exhausted, he finally drew his big fish alongside and drove in the harpoon."( in Para.5)
D. "Once he fell under their weight and lay patiently until he could gather his strength to go on ."( in Para. 6)
6.According to the text, what will be talked about next?
A. People's reflection when they saw the giant marlin’s skeleton outside.
B. A funeral held by the boy and the local people after his death.
C. Santiago’s action to realize his dream about the lions.
D. Santiago’s struggle against sharks .
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科目：高中英语 来源：2016届江苏清江中学高三2月月考英语试卷（解析版） 题型：单项填空
Some China’s factories are moving to poorer parts of China, _________ labor is cheaper.
A. from which B. when C. which D. where
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科目：高中英语 来源：2015-2016学年四川双流中学高二上学期期中考试英语试卷（解析版） 题型：阅读理解
China is a country on the move- especially around its Lunar New Year holiday. This year, the holiday crush（客流量） promises to be even heavier than before.
Government officials estimate that Chinese people will take to the air, roads and railways 3.62 billion times over a 40-day period around the nation's most important holiday this year as people push their way home for family gatherings or to satisfy their new-found passion for travel.
Getting tickets to all those would-be travelers is a discounting challenge that annually tries patience. And it is the railway system that routinely is most unable to cope. Railways are the transport of choice for low-cost long-distance travel, and that's where the ticketing system routinely falls down.
Much of the criticism has, focused on the railway's-online purchasing system. Which has been unable to keep pace with the huge demand and also failed to stop scalpers（票贩子） from ending up with many of the hard-to-find tickets.
While insisting that online sales were the fairest way to get tickets for travelers, railway officials told reporters that the public need to be patient. Efforts were being made to provide online identity checks that would reduce the ticket scalping problems. While officials had little good news for rail passengers, they did manage to bring a few smiles to those traveling by car as the country's extremely expensive highway tolls （通行费） will be free of charge for the period of the official holiday.
1.Which of the following words can replace the underlined word "discounting" in Paragraph 3?
A. Promising. B. Discouraging.
C. Pleasing. D. Rewarding.
2.According to the text, getting tickets_____ around the official holiday.
A. is just a piece of cake
B. is more costly
C. takes great effort
D. is convenient for travelers
3.We can learn from the text that _______ around the New Year holiday.
A. there will be 3. 62 billion people going home
B .the railway system will be facing more stress
C. people's complaint focus on the failure of online purchase
D. not railways but cars are the best choices for traveling
4. Which of the following can best describe the author's attitude to the railway service?
A. Objective. B. Doubtful.
C. Satisfied D. Worried.
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科目：高中英语 来源：2014-2015学年重庆市高三上学期第一次模拟考试英语试卷（解析版） 题型：完形填空
完形填空
On my way to work every day, I drive down a street lined with pine trees．One tree in particular my attention．It must have suffered some ．Part of its trunk grew nearly parallel to the ground, and then in an effort to its own course of life, the trunk took a 90 degree turn to stand tall and stretch toward the sun.
Each day as I drove by, I saw this bent but determined tree and I would be ．It was a reminder to me that I may not have had the best start in life, I could change in the parts of my life at any time.
I was planning to stop one day to get a perfect of my kindred-spirit (志趣相同的) tree．But that week I was busy．After that week, I still didn’t take any action．Every time I drove by the tree I would myself, “Tomorrow, I’ll stop tomorrow to take one.” Then one day, as I drove by “my” tree, I glanced over, and much to my , I found a sawed-off stump (树桩) where that tree had stood．I had my plan until “tomorrow” and tomorrow proved to be too .
What have you been putting off? What would you do today if you knew you would have the opportunity to do it again? Why not do those things that you have been putting off until tomorrow?
1.A．caught B．paid C．fixed D．escaped
2.A．experience B．influence C．defeat D．damage
3.A．change B．design C．follow D．imagine
4.A．applying B．attempting C．learning D．happening
5.A．satisfied B．interested C．encouraged D．educated
6.A．even though B．as if C．in case D．if only
7.A．habit B．direction C．plan D．purpose
8.A．review B．picture C．glance D．knowledge
9.A．call B．help C．tell D．warn
10.A．regret B．pleasure C．happiness D．surprise
11.A．cut off B．taken off C．put off D．called off
12.A．sad B．far C．good D．late
13.A．never B．ever C．surely D．almost
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