Now scientists believe that global warming affects hibernating animals, causing them to wake up earlier. While this may seem a little concern, it is in fact a serious environmental problem. The shortened hibernation period could actually lead to significant decreases in the population of several species.
Some of the first evidence of the problem came from Colorado, where researchers at the Rocky Mountain Biological Lab have been observing marmot (旱獭) hibernation behavior since the 1970s. In the early days of their studies, marmots generally hibernated several weeks into the month of May. Nowadays, however, temperatures in the area have risen by 2.5 degrees Fahrenheit, and the marmots wake up about a month earlier.
At least the marmots are still hibernating. Several other animals have not been hibernating at all recently. Brown bears in the Spanish Cantabrian Mountains did not hibernate last year. Chipmunks (花鼠) in the US and some snakes in Australia also skipped the hibernation period. The bears seem to have survived without losing many individuals. The chipmunks and snakes, however, were not so lucky. Many of the animals died of starvation during the winter.
The problem with animals waking up early, or skipping hibernation altogether, lies with the creatures' metabolism (新陈代谢). When the animals hibernate, their metabolism drops significantly. The animals' heart rate slows, and they require very little energy to live. When the animals awake in the spring, their metabolism returns to normal.
But while their metabolism may be as active as it was before hibernation, food sources aren't as available as they were before. A marmot may wake up when temperatures get warmer, thinking it's spring, but plants will not have got the amount of sun they need to grow. So until the plants grow, the marmots have no reliable food source.
Many scientists believe the problem will continue to get worse. For many biologists, that's a scary prospect. Terry Root, an animal expert at Stanford University, said, “I do think what we will be facing is the extinction of many species.”
1. What is the viewpoint of the writer?
A. Global warming will continue to get worse as time goes on.
B. Waking up early in spring may lead to the extinction of some animals.
C. Shortened hibernation will definitely decrease the population of animals.
D. Animals which do not hibernate die of starvation.
2.The writer sets the example of the marmot in order to .
A. indicate that global warming influences animals' hibernation
B. explain that the weather gets warmer and warmer now
C. show that the weather in the United States is quite different
D. say some animals do not hibernate now due to warm weather
3.Judging from recent observation, which of the following animals suffered the LEAST from shortened hibernation?
A. Brown bears.
B. Marmots.
C. Some snakes in Australia.
D. Chipmunks in the US.
4.Why can't marmots find enough food when they wake up?
A. Because there are too many marmots in the wild now.
B. Because more and more animal species skip hibernation now.
C. Because winter days end much earlier than before.
D. Because plants haven't received enough sunlight for spring growth.
科目：高中英语 来源：2015-2016学年吉林松原油田高中高二下期中考英语试卷（解析版） 题型：阅读理解
Developing healthy eating habits starts from childhood, therefore it is important for parents to teach and provide children with a healthy diet. DPHSS administrator of the Bureau of Nutrition Services, Charlie Morris told KUAM News, “A healthy diet for a child consists of a lot of fruits and vegetables in the diet limiting the amount of simple sugars in the diet and high fat food and highly processed food.”
This means staying away as much as possible from food such as chips, cookies, candies and sugary drinks, as all children need to have meals which involve a well-balanced diet. Community nutritionist Thelma Romoso said, “The fruit, the vegetable, the grain, the protein, and also the milk, the diary product, so for the fruits it’s easy for a mother to go into the two plus three concept of fruits and vegetables or five a day.”
This concept means that there are at least two servings of fruits a day, three servings of vegetables a day which can be served for lunch and dinner. As for protein parents can make a variety of dishes from chicken, beef, fish or even dried beans to pledge the child gets three servings a day.
Morris said that the child’s hunger level controls how much is eaten and the parent controls what and when the meal is offered, saying, “Mom needs to ensure that the food offered is good food for the child to eat and throughout the day depending on how active they are, snacks are not a bad thing, so the mom should offer good kinds of snacks.”
When it comes to preparing your child’s lunch and snacks for school, make sure to keep in mind that the food you provide should not only be a source of energy but also be nutritionally beneficial such as fresh fruits, and whole grain bread. But parents must be sure to remember that a good nutritional diet must be balanced with physical activity, namely it is important that children get outside and run around and play and get activity in addition to eating a good diet.
1.What does the author intend to tell us in the passage?
A. Choose healthy food and snacks for your child.
B. Fruits and vegetables are good for your child.
C. Take steps to provide a good lunch for your child.
D. Make various and delicious dishes for your child.
2.According to Charlie Morris we can know that_________.
A. mothers should prepare delicious food by themselves
B. highly processed food should be reduced in daily life
C. sugars and high fat exist in few kinds of food
D. active children prefer more and more snacks
3.It can be inferred from the passage that _________.
A. fresh fruits are often ignored by children
B. a good nutritional diet may cost too much
C. choosing healthy food is linked with income
D. parents play a very important role in children’s healthy diet
查看答案和解析>>
科目：高中英语 来源：2015-2016学年河北邢台市高一6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A、B、C、D四个选项中，选出最佳选项。
I work at a company where there are lots of employees. I can’t say I know them all_________ ，but I know most of them. I think that almost _________ of them know me. It’s all based on one _________ principle: I believe every single person _________ to be acknowledged(点头或微笑致意), however small or simple the greeting.
When I was about 10 years old, I was _________ down the street with my mother. She _________to speak to Mr. Lee, while I was aiming at the “ O” in the STOP _________ with a stone. I knew I could see Mr. Lee any time _________ the neighborhood, so I
didn’t pay any _________ to him. After we passed Mr. Lee, my mother, stopped me and said something that has _________ with me from that day until now. She said, “You let that be the _________ time you ever walk by somebody and not open up your mouth to_________ , because even a dog can wag(摇) its _________ when it passes you on the street.” That phrase _________ simple, but it’s been a guidepost(路标)for me. And it feels _________ that when I speak to someone, they speak back.
I’ve become vice president _________ that hasn’t changed the way I approach people. I still follow my mother’s _________ ．I speak to everyone I see, no matter where I am. I’ve learned that speaking to people _________a pathway into their world and it lets them come into mine, too.
The day you speak to someone who has their head _________ and when they lift it up and _________ ，you realize how powerful it is just to open your mouth and say, “Hello.”
1.A. in advance B. by name C. in particular D. on purpose
2.A. both B. none C. all D. neither
3.A. cool B. complex C. simple D. similar
4.A. deserves B. decides C. demands D. dislikes
5.A. driving B. jumping C. walking D. skating
6.A. refused B. stopped C. managed D. intended
7.A. button B. line C. spot D. sign
8.A. beyond B. beside C. from D. around
9.A. visit B. bill C. attention D. tax
10.A. agreed B. stuck C. competed D. compared
11.A. first B. last C. second D. next
12.A. laugh B. speak C. whisper D. reply
13.A. leg B. body C. head D. tail
14.A. looks B. sounds C. appears D. proves
15.A. good B. well C. awkward D. strange
16.A. but B. while C. so D. since
17.A. nose B. advice C. feeling D. bent
18.A. decorates B. blocks C. creates D. explores
19.A. turned around B. held down C. operated on D. knocked in
20.A. stare B. scold C. shout D. smile
查看答案和解析>>
科目：高中英语 来源：2015-2016年江西铅山一中等四校高一下第二次月考英语卷（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。
Sally: Hi, Dad. How are you?
Dad: I’m fine, Sally. How’s the course going?
Sally: It’s going well, actually. I’m enjoying my math course at the moment, ___1.____ (main) because it’s not that difficult ____2.___ (compare) to the other ones.
Dad: Good. And what about the teachers? ___3.__ are they like?
Sally: Well, I have five teachers and they are all highly _4.___ (knowledge), but Professor Jones is my favourite. I really respond well ___5._____ his way of teaching.
Dad: And are your fellow students nice, too?
Sally: Yes, I ____6.___ (make) lots of new friends by now and everyone ____7.___ (seem) to be very hard-working. The course has lots of group work, but to be honest, this isn’t really the way ____8.____ I like to study — I prefer to study alone.
Dad: Oh, well, I suppose not everything can be perfect.
Sally: I know, Dad. You’re right. In fact, there’s one thing I’m a bit _9.___(concern) about — statistics. I think I might not pass __10._____.
Dad: Well, let’s wait and see, shall we? There’s plenty of time to improve. Don’t worry about it, OK?
Sally: Thanks, Dad, I’ll try not to.
查看答案和解析>>
科目：高中英语 来源：2015-2016学年重庆杨家坪中学高二下期第二次月考（期中）英语卷（解析版） 题型：书面表达
书面表达
当今，绿色生活方式已被人们广泛接受，并体现在生活的各个方面。某英语报社现正在中学生中开展以“Green life at home”为主题的征文活动，请你用英语写一篇文章投稿。内容要点如下：
1．介绍你在家的具体做法（如节能节水、环保购物等）
2．向全社会提出绿色生活倡议。
注意：1．词数100左右；
2．可以适当增加细节，以使行文连贯；
3．文章开头已经写好，不计入总词数。
Green life style is becoming increasingly popular nowadays as it can help to reduce pollution and save energy.
查看答案和解析>>
科目：高中英语 来源：2015-2016学年辽宁大石桥二中高二下期中考试英语试卷（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作文。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。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下画一横线，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。
Li Ming went to the park in last Saturday afternoon after he had already finished his homeworks. He saw several boys skating in the pond happily. Suddenly he heard a cry for help. Looked ahead, he found one of the boys had fell into the water. Li Ming jumped into the icy water immediately and manages to pull the boy to safe. Then the boy was given the first aid but soon came to myself. The boy’s parents came soon after they received the phone call. They were very grateful Li Ming, who was trembling there with cold.
查看答案和解析>>
科目：高中英语 来源：2015-2016学年辽宁大石桥二中高二下期中考试英语试卷（解析版） 题型：阅读理解
In England, people often talk about the weather because they can experience (经历) four seasons in one day. In the morning the weather is warm just like in spring. An hour later black clouds come and then it rains hard. The weather gets a little cold. In the late afternoon the sky will be sunny, the sun will begin to shine, and it will be summer at this time of a day.
In England, people can also have summer in winter, or have winter in summer. So in winter they can swim sometimes, and in summer sometimes they should take warm clothes.
When you go to England, you will see that some English people usually take an umbrella (伞)or a raincoat with them in the sunny morning, but you should not laugh at them.
If you don't take an umbrella or a raincoat, you will regret (后悔) later in the day.
1.Why do people in England often talk about the weather?
A. Because they may have four seasons in one day
B. Because they often have very good weather
C. Because the weather is warm just like in spring
D. Because the sky is sunny all day
2.From the story we know that when _________come, there is a heavy rain.
A. sunshine and snow B. black clouds
C. summer and winter D. spring and autumn
3."People can also have summer in winter." Means "it is sometimes too ______in winter."
A. warm B. cool C. cold D. rainy
4.In the sunny morning some English people usually take a raincoat or an umbrella with them because ____.
A. their friends ask them to do so
B. it often rains in England
C. they are going to sell them
D. they are their favorite things
查看答案和解析>>
科目：高中英语 来源：2015-2016学年山西吕梁高级实验中学高一上期末考试英语试卷（解析版） 题型：阅读理解
B
In the US，people prefer waiting for a table to sitting with people they don’t know．This means a hostess may not seat a small group until a small table is available．even if a large one is．If you are sitting at a table with people you don’t know，it is impolite to light up a cigarette without asking if it will disturb them．
At American restaurants and coffee shops you are usually served tap water(自来水)before you order．You may find the bread and butter is free，and if you order coffee，you may get a free refill．
Most cities and towns have no rules about opening and closing time for stores or restaurants，though they usually do make rules for bars．Especially in large cities, stores may be open 24 hours a day．
Serving in restaurants is often large, too large for many people．If you can’t finish your meal but would like to enjoy the food later．ask your waitress or waiter for a“doggie bag”．It may have a picture of a dog on it，but everybody knows you’re taking the food for yourself．
Supper and dinner are both words for the evening meal．Some people have“Sunday dinner”．This is an especially big noon meal．
Tips are not usually added to the check．They are not included in the price of the meal，either．A tip of about 15％ is expected and you should leave it On the table when you leave．In some restaurants，a check is brought on a plate and you put your money there．Then the waiter or waitress brings you your change．
1.Which of the following statements is true?
A．American people like sitting with people they don’t know．
B．A hostess always seats a small group at a large table．
C．American people never sit with people they don’t know．
D．American people will not light a cigarette if the people who sit at the same table mind their smoking．
2.What is served before you order?
A．Bread．
B．Butter．
C．Coffee．
D．Cold water．
3.What do American people always do when servings are too for them?
A．They take the food home with a“doggie bag”for their dogs．
B．They leave the food on the table and go away．
C．They take the food home with a“doggie bag”and enjoy the food later．
D．They ask the waitress or waiter to keep the food for them．
4.What can you learn about“tips”according to the passage?
A．Customers often add tips to their cheek．
B．The price of the meal usually includes the tip．
C．People are not expected to pay tips in addition．
D．Tips are supposed to be left on the table when customers leave．
查看答案和解析>>
科目：高中英语 来源：2016届西藏拉萨中学高三下期月考英语试卷（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，并写在答题卡上。
The secret of staying slim could be as simple as keeping your mind on your meals．
Research suggests that_1.(free) ourselves from distractions and concentrating completely on the food that is in front of us_2. (help) us stay in shape． Such "mindful eating" ensures that the mind is in tune with(协调) the body, enabling it to "hear" the chemical messages3.tell it that we are full． Digestion involves a complex series of4. (signal) between the gut(肠道) and the nervous system and it takes about 20 minutes for the brain_5. (tell) that the body has eaten enough． This means that if someone eats too quickly, the signals will come slowly, leading to overeating． Scientists say that distractions make it6._ (hard) for us to remember what we have eaten． This absent-mindedness stops us from feeling full _7._sends us reaching for some snacks later on． It is thought that our memory of what we have eaten plays a key role_8.controlling appetite． This means that distractions stop us remembering_9.detail of what we have eaten, leaving us feeling hungry． Before snacking, dieters should ask themselves if they are really hungry and if not, distract themselves by going for a walk or reading．
Done_10._ (proper), mindful eating may not only leave you slim, but also make you enjoy your mealtimes．
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com
