Walk through the Amazon rainforest today and you will find it steamy, warm, damp and thick. But if you had been there around 15,000 years ago, during the last ice age, would it have been the same? For more than 30 years, scientists have been arguing about how rainforests might have reacted to the cold, dry climate of the ice ages, but till now, no one has reached a satisfying answer.
Rainforests like the Amazon are important for mopping up CO2 from the atmosphere and helping to solve global warming. Currently the trees in the Amazon take in around 500 million tons of CO2 each year: equal to the total amount of CO2 given off in the UK each year. But how will the Amazon react to the future climate change? If it gets drier, will it survive and continue to draw down CO2? Scientists hope that they will be able to learn in advance how the rainforest will manage in the future by understanding how rainforests reacted to climate change in the past.
Unfortunately, collecting information is incredibly difficult. To study the past climate, scientists need to look at fossilized pollen(花粉)kept in lake mud, Going back to the last ice age means drilling down into lake sediments(沉淀物), which requires specialized equipment and heavy machinery. There are very few roads and paths, or places to land helicopters and aeroplanes. Rivers tend to be the easiest way to enter the forest, but this still leaves vast areas between the rivers completely unsampled(未取样). So far, only a handful of cores have been drilled that go back to the last ice age and none of them provide enough information to prove how the Amazon forest reacts to climate change.
1.How do scientists study the past climate change?
A. By predicting the climate change in the future.
B. By drilling down deep into land sediments.
C. By analyzing fossilized pollen in lake mud.
D. By taking samples from rivers in the Amazon.
2.Why is it difficult to collect information about the past climate change?
A. Because scientists can't find proper equipment and machinery.
B. Because it is very difficult to obtain complete samples.
C. Because helicopters and aeroplanes have no place to land.
D. Because none of the cores provide any information.
3.Where is the passage most probably taken from?
A. A medical journal. B. A news report
C. A travel brochure. D. A science magazine.
4.The best title for the text may be .
A. Secrets of the Rainforest
B. Climates of the Amazon
C. The History of the Rainforest
D. Changes of the Rainforest
科目:高中英语 来源:2015-2016学年安徽安庆一中高一上学期期末英语试卷(解析版) 题型:阅读理解
This could be the perfect gift for the partner, who embarrasses you on the dance floor. Smart socks, which can teach to dance, may be the answer for anyone with two left feet.
The socks have been developed as a running tool to help runners improve their skills. Thanks to the socks, users can accurately(精确地) record not only know far and fast they run but also how well. It means the user maximizes(最大化)their performance, and reduces damage to body and prevents hurt. The hi-tech socks are made of special fibers(纤维) that watch the movements of your feet. They look, feel and can be washed like normal clothes.
Sensors record each movement and send it by an ankle transmitter (脚踝发射器) to a smart phone. Then a “virtual coach” application shows the information and can tell the user what they are doing wrong, and help to improve skill in any task with feet.
The socks should be useful to athletes and weekend joggers. “People think running is so easy and of course everybody can do it but not necessarily safely and well,” Dr Davide Vigano said. A recent study showed that between 60 and 80 percent of runners got hurt per year. This is pretty much more than any other human activity. Researchers say the technology can also be developed to teach people how to dance, play sports such golf, or even to help to teach women to walk better in high heels.
Mr. Vigano said, “People could all benefit from the idea. We have had interest from all sorts of sports, like skiing, football, cycling and golf. Anything where you have to use your feet can use it. It could even be put in high heels to help women walk in them safely.”
Socks are just the start, and the technology could be used in gloves, hats and boots. The socks, anklet and software package, are expected to be sold for around £120, which will go on sale in March.
1.What does the underlined part “anyone with two left feet” refer to?
A. People who are disabled.
B. People who invented the socks.
C. People who are not good at dancing.
D. People who are interested in dancing.
2.What’s special about fibers that the socks are made of ?
A. They can monitor the movement of feet.
B. They feel much softer than normal clothes.
C. They are expensive to produce.
D. They act as a smart phone for users.
3.According to Dr Vigano, _____
A. 60 to 80 percent of runners would like to buy the smart socks.
B. users can run as fast as they like with the socks.
C. everyone can make good use of the smart socks.
D. no runners will get hurt, thanks to the socks.
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科目:高中英语 来源:2016届江苏南京市、盐城市高三第二次模拟英语卷(解析版) 题型:单项填空
He____whether to set aside the minor differences, then he did.
A.debated B. predicted C. plotted D. calculated
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科目:高中英语 来源:2016届湖北省黄冈市高三3月份质量检测英语试卷(解析版) 题型:七选五
Your smart phone may have hurt you before you realize it. Don't be addicted to it. Put your phone away, OK?
1.Cyber Sickness
Also called “digital motion sickness”, symptoms that range from headaches to woozy feelings can occur when you quickly scroll on your smart phone or watch action packed video on your screen. 1.. Your sense of balance is different from other senses in that it has lots of inputs. When those inputs don’t agree, that’s when you feel dizziness and sickness.
2. Text Claw
It is the unofficial term for soreness and muscle contraction felt in the finger, wrist and forearm after heavy smart phone use. 2.. So if you’re always on your phone, it makes sense to feel discomfort in your hands and forearms.
3. Eye Strain
Do you stare at a screen for hours on end? If you’re reading this, you very well might. 3.. Staring at your digital devices for a long time can lead to dry eyes, headaches and tiredness, which can decrease your productivity. Experts suggest taking screen breaks every 20 minutes.
4. Text Neck
Similar to the claw, text neck---discomfort in the neck and spine happens when you spend a long time looking down at your smart phone. 4.. Being mindful of how far your neck bends when you’re on your phone---- and bending it back to an upright position can help reduce the risk of text neck.
5. Pedestrian safety
Pedestrian deaths are on the rise because too many smart phone users engage in distracted walking. While focused on the cyber world, many of us can lose reality of the physical one. Elemental pedestrian safety knowledge is compromised by technology, and the risks are scary. 5..
A. We should taking breaks for a while.
B. The sensation results from a mismatch between sensory inputs.
C. Remember that pedestrian safety is more important than smart phone.
D. The habit may lead to people requiring medical spine care at a younger age.
E. To avoid injury or worse, put your phone away until you’ve reached a safe spot.
F. Any specific motor activity can cause pain in the tendons (筋) and muscles when done repeatedly.
G. Any activity that requires active use of your eyes---driving and reading included---can cause eye tiredness.
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科目:高中英语 来源:2016届重庆市高三3月月考英语试卷(解析版) 题型:语法填空
阅读下面材料,在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。
An old proverb says, “Friends are like wine; the older, the better.” So, nowadays many people consider old friends to be 1. (important) than new friends. For example, if two pieces of advice 2. (give) to solve a problem, one from a new friend and the other from 3. old friend, people always tend to 4. (adoption) the latter one, although the new friend's advice may be better.
5. (disagree) with the old proverb, I believe that new friends are not 6. (necessary) worse than old friends. Why? Because the length of time cannot determine whether your friendship is better or not.
Once you call someone friend, he must be a person who is 7. (rely) and whose interests are in common with 8. (you). As time goes by, a friend's outside look may change, but the inside characters of him and his interests 9. (change).It is just these unchangeable characters and interests 10. make him a friend to you. Therefore, on this point, there is no difference between old friends and new friends.
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科目:高中英语 来源:2016届重庆市高三3月月考英语试卷(解析版) 题型:完形填空
完形填空
阅读下面短文,从短文后各题所给的四个选项(A、B、C、D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
It has often been said that a person’s life is the sum total of their experiences. That seems like a simple ________,but if one accepts this, then why do so many of us engage in practices and activities which are negative and actually ________ us?
________ the family of four who decided to each clean a different area. They each took a sponge(海绵), did the ________ , and then placed them back in the kitchen.
A visitor came along who was ________about what was cleaned in the home, but couldn’t tell by ________since the sponges all looked the same. So, in order to ________ his curiosity, he decided to squeeze each sponge to see what came out.
When the first sponge was squeezed, some cola came out, so the visitor ________ someone cleaned the kitchen with that one. Upon squeezing the second, he found motor oil, so________ , someone was cleaning the garage. In the third, baby powder came out when it was squeezed, which________that the baby’s nursery was done. And ________ ,in the last one was wax, which was ________ on the floor.
As the visitor laid the last sponge down, he again remarked on their similarity. They all looked the same ________ they were squeezed.
The ________ here is that as individuals we are not different from a sponge. We can only squeeze out what is ________ .As babies, we are born into this world________ . We are like a new sponge. As we go through ________ , our“sponge”is filled with things we________ through experiences.
If we look for the good in others and ________ to adopt a positive attitude around, then as life squeezes us we will have a better chance of coping. If we are constantly finding ________ with others and look for excuses for our behavior, when life squeezes us we may not like what comes out.
1.A.exampleB.statementC.taskD.explanation
2.A.denyB.punishC.hurtD.cheat
3.A.ConsiderB.StartC.SupportD.Believe
4.A.orderingB.cleaningC.cookingD.cutting
5.A.sensitiveB.familiarC.curiousD.nervous
6.A.feelingB.dryingC.smellingD.looking
7.A.arouseB.inspireC.satisfyD.protect
8.A.declaredB.provedC.imaginedD.judged
9.A.obviouslyB.fortunatelyC.simplyD.generally
10.A.reportedB.meantC.allowedD.supposed
11.A.finallyB.suddenlyC.quicklyD.frequently
12.A.drawnB.usedC.examinedD.discovered
13.A.ifB.thoughC.sinceD.until
14.A.evidenceB.projectC.lessonD.excuse
15.A.put awayB.handed outC.taken backD.put in
16.A.hungryB.confidentC.pureD.alive
17.A.lifeB.dangerC.materialD.plans
18.A.findB.absorbC.understandD.afford
19.A.tryB.helpC.agreeD.pretend
20.A.mistakesB.diseaseC.friendshipD.fault
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科目:高中英语 来源:2016届河北武邑中学高三下学期周考3英语试卷(解析版) 题型:短文改错
短文改错
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下短文。
短文中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏词符号∧,并在此符号下面写出该加的词。
删除:把多余的词用斜线\划掉。
修改:在错词下面划一横线,并在该词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。
Last weekend I visited my best friend in London, which was supposed to be excited. Melina, whom I have not seen for three years, offered to take me on a sighting tour by car. Unfortunate, she ended up doing everything but that! First, she showed me around the building where she had gotten her first job. Then she drove me to the café where she had met first boyfriend . Before I could say everything, she smiled at me and said she wanted to take me to another place where was special to her. I was very disappointed when we got on the place where she had bought her car! Besides, she kept talk about herself all day long! I was fed up with it, but I couldn’t make her to stop. When she finally decides to call it a day, she turned around and found me asleep!
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科目:高中英语 来源:2016届江苏省扬州市高三上学期期末考试英语试卷(解析版) 题型:单项填空
Much time _____ siting at a desk, office clerks are generally troubled by various health problems.
A. being spent B. having spent
C. spending D. spent
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科目:高中英语 来源:2015-2016学年新疆兵团农二师华山中学高二下学期一次考英语卷(解析版) 题型:语法填空
阅读下面材料,在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。
Mary: Paul, do you like 1. (play) computer games?
Paul: Yes, I do. It’s my hobby. My mother is worried about me sometimes 2. I’ve always been playing computer games 3. I was little. I love them. I’d like 4. (create) computer games one day.
Mary: What do you think is 5. (good) game?
Paul: My favorite games are two. The first game is a role playing game. You can be any characters you like such as a farmer, a knight and a hunter. You can discover things, fight battles, solve lots of puzzles and find out lots of secrets. That’s 6. I like.
Mary: Is the setting now 7. the future or the ancient?
Paul: The setting is a fantasy world. That’s one of the nice things about computer 8. (game) — you can escape the real world. The second game is a city building game. You can be a mayor of the city and you have to build up your city over hundreds of years and develop 9. . It’s almost like playing dolls houses, but much more 10. (advance). It’s always fun.
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