________ there is life on another planet, most scientists believe, is almost impossible．
Whether
What
That
How
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暑假作业北京艺术与科学电子出版社系列答案科目：高中英语 来源： 题型：阅读理解
A Concussion（脑震荡） happens when the brain is shaken, often in a car crash or a fall or a strike on; the head in sports．Concussions can be mild, but doctors may order a CT scan to look for a more serious injury．But a recent study warned that more children than necessary are being exposed（使遭受） to radiation this way．
A national team led by two doctors at the University of California, Davis, studied hospital records from thousands of children with head injuries. They found that in many cases, the risk of developing cancer from the radiation outweighed the risk of a serious brain injury.
The study found that one in five children over age two had a low risk of serious injury but received CT scans anyway. The same was true of almost one in four children under two years of age.
The researchers have developed rules to predict if a head injury is serious enough for a scan. For children under two, doctors are advised against it if there is:
·Normal mental activity.
·No swelling in the back of the head.
·No feeling of a broken bone in the skull. (头骨)
·And no loss of consciousness for more than five seconds.
Doctors should also consider how the child was injured and whether the parents say the child is acting normally.
For patients from two to eighteen, the guidelines are similar —— except there should be no l vomiting（呕吐）and no severe headache.
Earlier this year, the British Journal of Sports Medicine published new guidelines for concussions in children and teens. International experts said they should not return to sports or school until fully recovered. The brain also needs a "cognitive rest," they say, by restricting activities like video games, texting and watching TV.
It often take longer than adults to recover from a concussion than adults. The experts say individual progress and not a set time period should always guide a decision to return to play.
The researchers at the -University of California found that children who received CT scans
A．were likely to suffer brain injuries
B．wouldn't have normal mental activity
C．would lose consciousness now and then
D．were likely to develop canter
How many aspects should doctors consider when deciding whether a child under two needs a CT scan?
A．Four． B．Six． C．Seven． D．Nine．
What can we learn from the last two paragraphs?
A．Texting is harmful to patients’ recovery from concussions．
B．Patients with brain injuries can play many sports．
C．Adults need a longer time than teens to recover from concussions．
D．It takes at least a year for individuals with brain injuries to fully recover．
The author of the passage mainly___．
A．describes the risks of brain injuries
B．suggests CT scans are of practical use
C．tells us about the risks of brain injury tests
D．argues against new guidelines for concussions
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科目：高中英语 来源：2011-2012学年黑龙江省大庆铁人中学高二下学期期末考试英语试卷（带解析） 题型：阅读理解
Even if you are an experienced backpacker or climber，you need to know what to do if something goes wrong．It is not that Alaska is that much more dangerous than other places．It is no more hazardous than elsewhere，as long as the proper precautions(预防措施)are taken．So, being prepared is crucial to ensure a safe trip．
First of all，make sure you pack everything you will need for your trip．Even if you are traveling by car，pack clothes and gear for backpacking．Because of the bad weather, cars break down frequently. Pack a survival(生存)kit full with：a down coat, boots ,mittens, a hat, snow-pants，sleeping bags，candles，a flashlight，and high-energy food. If you are traveling by car , also pack extra belts, a shovel, and a chain.
If you are camping or hiking，make sure you know how to avoid bears．If you are lost in the wilderness, there is no doubt you will encounter them.
However，there is no need to be nervous．Just take these precautions：make noise as you walk，bears will avoid you；cook your food away from where you sleep，and store your food away from where you sleep，so the bears are not attracted．Both of these should keep the bear away．However，if you do encounter a bear，there are two different schools of thought．One is to make noise and scare the bear away．The other is to stand still and speak softly to get the bear to leave．If you are dealing with a brown bear，you can climb a tree，since it cannot follow．But，black bears can climb．If for some reason the bear attacks，play dead．Try to protect your head and neck，and hopefully the bear will leave its“dead” prey.
【小题1】The underlined word “hazardous” in Paragraph l most probably means________．
| A．interesting | B．dangerous | C．wonderful | D．important |
| A．it is more dangerous to travel by car |
| B．the weather is always bad while traveling |
| C．it is necessary to take whatever you need |
| D．the car breaks down often while traveling |
| A．the bear can’t find you by the smell of the food |
| B．you can have a better sleep at night |
| C．the bear can’t find out your food easily |
| D．you can protect the food you bring with you |
| A．you can try to make noise as possible as you can |
| B．you can say something in a soft voice to the bear |
| C．you can try to learn to climb up a tall tree nearby |
| D．you can pretend to be dead when you are in danger |
| A．There are some tips to survive in Alaska’s wilderness． |
| B． The bears in Alaska’s wilderness are very dangerous． |
| C．Something should be taken along while traveling by car． |
| D．You should learn how to protect yourself． |
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科目：高中英语 来源：2010—2011学年新疆乌鲁木齐市第八中学高二上学期第一次月考英语卷 题型：阅读理解
Do you want to improve the way you study? Do you feel nervous before a test? M
any students say that a lack of concentration (注意力) is their biggest problem. It seriously affects their ability to study, so do their test results.
If so, use these tips to help you.
Study Techniques
l You should always study in the same place. You shouldn’t sit in a position that you use for another purpose. For example, when you sit on a sofa to study, your brain will think it is time to relax. Don’t watch TV while you are studying. Experts warn that your concentration may be reduced by 50 percent if you attempt to study in this way. Always try to have a white wall in front of you, so there is nothing to distract (make less concentrated) you. Before sitting down to study, gather together all the equipment you need. Apart from your textbooks, pens, pencils and knives, make sure you have a dictionary. If your study desk or table is needed when you are not studying, store all your equipment in
a box beside it.
l Your eyes will become tired if you try to read a text which is on a flat surface. Position your book 
at an angle of 30 degrees.
l Be realistic and don’t try to complete too much in on
e study period. Finish one thing before beginning another. If you need a break, get up and walk around for a few minutes, but 
try not to telephone a friend or have something to eat.
Test-taking Skills
l All your hard work will be for nothing if you are too nervous to take your test. Getting plenty of
rest is very important. This means do not study all night before your test! It is a better idea to have a long-term study plan. Try to make a timetable for your study which lasts for a few months.
l Exercise is a great way to reduce pressure. Doing some form of exercise every day will also
improve your concentration. Eat healthy food too.
l When you arrive in the examination room, find your seat and sit down. Breathe slowly and
deeply. Check the time on the clock during the test, but not too often. Above all, take no notice of everyone else and give the test paper your undivided attention.
【小题1】Which of the following statements is true according to the passage?
| A．You should study in a different place every day, so you don’t get bored. |
| B．Your concentration will improve if you study and watch TV at the same time. |
| C．Check the time during the exam at a certain time. |
| D．Staying up all night and studying is tiring, but you will learn a lot using this method. |
| A．Your study desk or table. | B．Your textbook. |
| C．Your dictionary. | D．The equipment you need. |
| A．You shouldn’t look at everyone else during the test. |
| B．You will have enough energy to deal with your study and exams by eating healthy diet. |
| C．You’ll concentrate more if there is nothing to distract you. |
| D．If you feel tired during study, you can walk around for a few minutes. |
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科目：高中英语 来源：广东省2010届高三下学期第三次阶段性考试试题（英语） 题型：书面表达
第二节 读写任务(共l小题，满分25分)
阅读下面的短文，然后按照要求写一篇150词左右的英语短文。
The use of advertisement is certainly great both to the producer and the consumer. There is a great deal of truth in the saying that good quality and honest workmanship are best advertisement. Of course, people know that the manufacturers would have done better if they have used the money for advertising in making better products to sell. But in these days of far-extended trade, there is no doubt that advertisement is necessary to make the existence of even first-class goods known. And even goods that are already well known must still be advertised. Some manufacturers are aware of the value of it, for, when they try to save money by stopping their advertisements, their sales go down at once.
But advertising has its abuses. Many advertisements are meant to cheat, and do at times cheat the public by raising the price of worthless goods. There is only one comfort in this aspect that a lying advertisement cannot sell worthless goods for long, for the people who buy it will not buy it a second time. As an old saying goes, “You can take in all people part of time; and you can take in some people all the time; but you cannot take in all the people all the time.
[写作内容]
1. 概括短文的内容要点,该部分的词数约为30;
2．就 “广告的好与不好” 发表你的看法,写一篇字数约为120的文章，并包括
以下要点：
广告对消费者和商家的作用；
广告到处可见，是一个大的产业；
但有时商家会以虚假夸大的广告获取利益而损害消费者的利益；
你个人的观点。
[写作要求]
1）文章可参照阅读材料的内容，但不得直接引用原文中的句子; 2）题目自定。
[评分标准] 概括准确，语言规范，内容合适，篇章连贯。
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科目：高中英语 来源：20102011年浙江杭州十四中高二下学期期中考试英语试题 题型：其他题
填空（共10小题，每小题1分，共10分）：
阅读下面的短文，在标有序号的空白处填入一个适当的词，或填入括号中单词的正确形式，并将序号及相应答案写在答题纸上。
Around the world young people are spending unbelievable sums of money to listen to rock music. Forbes Magazine claims that at least fifty rock stars have an __1__ of between two million and six million dollars per year.
Some observers think the customers are buying more than music. According to one theory, rock music has a special appeal because no real training is needed to produce it. There is __2__ gap between the audience and the performers. Every boy and girl in the audience thinks,” I could sing __3__ that.” So rock has become a new kind of religion, a new form of worship. Young people are glad to worship a rock star because it is a way of worshipping __4__.
Luck is a key word for explaining the success of many. In 1972 one of the luckiest was Don McLean, who wrote and sang “American Pie”. Like most performers, McLean __5__ his own music, so he earns additional money. Records provide only part of a star’s income. Around the world young listeners soon want to see the star in movies, on television, and __6__ person.
__7__ do the rock stars use their money? What do they do when the money starts pouring in like water? Most of the young stars just throw the money around. England’s Elton John bought himself a $5,000 pair of eyeglasses that light up and spell E-L-T-O-N. He also bought himself __8__ cars, “one for each foot”.
In the end the rock star’s life is unrewarding. After two or three years fame and fortune are gone. __9__(leave) with his memories and his tax problems, the lonely ex-performer spends his __10__ (remain) years trying to impress strangers. New stars have arrived to take his place.
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