Do you know the cold?
Everybody knows what happens when you catch a cold. First you sniffle(抽鼻涕) or get a more throat. Then you sneeze. After coughing and blowing your way through the next few days it’s over---until next time
Do you know what causes a cold, how it is spread or how to help prevent it? And which of the many medicines is best for your cold?
There is no known cure for the common cold. Once you catch a cold, your body usually produces antibodies(抗體) to the virus which caused the cold. These antibodies help the body develop resistance（抵抗力) to the virus if you catch it again. Unfortunately, over 200 different viruses cause the common cold. These viruses may change over time, so your resistance to them reduces. The large number of viruses and the fact that they change help explain why there is no cure for the common cold and why you will suffer colds in the future.
The colds increase in winter(usually between Septenber and March) but Not because of the cold! Cold weather has not been shown to increase the number of colds. People spend more time indoors in winter. They are therefore more likely to come into physical contact with each other and spread the disease. All these ideas remain to be proven. No one has been able to discover what really causes these colds
Common colds are spread by sneezes or by direct contact with a cold sufferer, usually when two people’ hands touch or an object is passed from one person to another. Sneezing spreads colds when someone sneezes near other people, or sneezes on objects which others later touch. A cold virus can survive up to three hours on hard surfaces.
The simplest and most effective way to lower the risk of catching a cold is to wash your hands frequently. Another important step in cold prevention is for cold sufferers to get rid of used tissues immediately after use.
1.From the passage, we can know____________.
A. a cold virus can survive up to four hours      
B. most of people know how to cure a cold
C. there are more colds in November than in May  
D. all of us catch more than one cold a year
2.According to the passage, people tend to catch a cold___________.
A. because they don’t take exercise in winter    
B.if they stay outdoors in freezinf cold winter
C. if they stay indoors more often in winter  
D.because the viruses of colds usually exist in winter
3.We can know colds sre spread through____________.
A. air and touching     B. coughs and objects   C.two people    D. a person and his hands                            

小題1:C
小題2:C
小題3:A
略
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：閱讀理解


There are many American expressions about insects--- like bees, for example. Bees are known as very hard workers. They appear to be busy, moving around their homes, or hives (蜂窩). So you might say you were as busy as a bee if you spent your weekend cleaning your house. In fact, you might say your house was a beehive of activity if your whole family was helping you clean. You also might say you made a beeline for something if you went there right away. When we go to see a movie, my friend always makes a beeline for the place where they sell popcorn (爆米花) .
Here is an expression about bees that is not used much any more, but we like it anyway. We think it was first used in the 1920s. If something was the best of its kind, you might say it was the bee’s knees. Now, we admit that we do not know how this expression developed. In fact, we do not even know if bees have knees!
If your friend cannot stop talking about something because she thinks it is important, you might say she has a bee in her bonnet (女帽). If  someone asks you a personal question, you might say “that is none of your beeswax”. This means none of your business.
Speaking of personal questions, there is an expression when their children ask, “Where do babies come from?” Parents who discuss sex and reproduction (生殖) say this is talking about the birds and bees.
Butterflies are beautiful insects, but you would not want to have butterflies in your stomach. That means to be nervous about having to do something, like speaking in front of a crowd. You would also not want to have ants in your trousers. That is, to be unable to sit still.
1. If you make a beeline for something, you ______ .
A. are as busy as a bee            B. go quickly and directly towards it
C. always go to the same place     D. buy something at a certain place
2. The underlined expression “ it is the bee’s knees” _______ .
A. is not used at all now          B. was first used in the 1820s
C. reminds us that bees have knees  D. means “it is very good”
3. If you ask your American friend Jack “How old is your wife?” he may say “______.”
A. It is none of your beeswax      B. You have a bee in your bonnet
C. It is the bee’s knees            D. You are talking about the birds and bees
4. When you have butterflies in your stomach, you ______ .
A. are too sick to sit still           B. have ants in your trousers
C. are nervous about something     D. have a stomachache
5. The passage mainly tells us _______.
A. some interesting and useful insects  B. some expressions about insects
C. the way of learning expressions     D. some newly-invented expressions

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


第三部分：閱讀理解 (共20小題；每小題2分，滿分40分)
請認真閱讀下列短文，從短文后各題所給的A、B、C、D四個選項中，選山最佳選項，并在答題紙上將該項涂黑。
Have you ever stayed in a hotel? Most Chinese hotels often provide guests with things like disposable (一次性的) toothbrushes, toothpaste, shampoo and slippers. Many guests like the idea because they don't have to bring their own. But, if you travel to Beijing, remember to bring your own things. Starting from June, some hotels in Beijing will no longer provide guests with these disposables. They want to ask people to use less disposable things.
Many disposable things are made of plastic. People throw them away after only using them once. It is a waste of natural resources (資源) and is very bad for the environment. Do you know, one Chinese person makes as much as 400kg of waste a year! Most of that waste comes from disposable things. In Beijing, people throw away about 19,000 tons of plastic bags and 1,320 tons of plastic lunch bowls every year! Plastic can take between 100 and 400 years to break down. So the less plastic we throw out, the better. So, wherever you travel, bring your own things and use them again and again.
Back at home and school, you can also do something to make our world a better place. Try to do these things in your daily life:  Use cloth shopping bags, not plastic ones. After using a plastic bag, wash it out and let it dry. Then you can use it over and over again. Do not use paper cups. At your school canteen（食堂）, use your own bowl and chopsticks instead of disposable ones.
1. Why do many hotels provide guests with some disposable things?
A. Let their guests be convenient during their travelling.
B. Hope their guests use less disposable things.
C. Wish their guests to save money.
D. Want their guests to use more disposable things.
2. Some Beijing hotels will no longer provide guests with ____.
A. cheap food and drink                     B. disposable things
C. good service                                     D. free TV programmes
3. Which of the following is NOT true?
A. Many disposable things are made of plastic.
B. Throwing disposable things away is a waste of natural resources.
C. Plastic is very bad for the environment.
D. Plastic breaks down easily.
4. What can we do to make our world a better place at home and school?
A. Use shopping bags made of plastic.           
B. Do not throw away paper cups.
C. Use disposable plates, bowls and chopsticks.  
D. Do not forget to reuse daily necessities（日用品）.
5. We can tell from the story that ____.
A. people don't like disposable things at all
B. we can't use paper or plastic bowls at school
C. we should use less plastic things and protect our environment
D. hotels won't provide disposable things because they want to save money

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


E
Sweet potatoes are fat-free, high in fiber and full of the vitamins that research suggests reduce your risk of life-shortening diseases. To stay healthy, we must eat more fruits and vegetables, and sweet potatoes are a great source of beta carotene(胡蘿卜素) and other carotenoids(which the body turns into vitamin A). According to a study of the diets of almost 90,000 nurses, eating about one cup a day of fruits and vegetables rich in carotenoids can cut your risk of stroke in half and reduce your risk of heart disease by 22 percent. Other research suggests beta carotene protects against breast, lung and stomach cancers.
Beta carotene is the most famous member of the carotenoids family. In face, a medium-sized sweet potato contains nearly 12mg of beta carotene(anti-aging experts usually suggest 6 to 11 mg per day). Sweet potatoes are also a low-fat source of vitamin E. Research has linked high E diets with a lower risk of heart disease. This vitamin pill in an orange jacket also packs a vitamin C punchit which has more C than apricots (a kind of fruit). Research suggests that vitamin C protects against ailments (小疾) ranging from cataracts(an eye disease) to cancer. In addition, a UCLA (University of California Los Angeles) study linked high vitamin C diets with a longer life. Recent studies have showed that antioxidant Vitamins C, E and beta carotene fight a fierce battle against free radicals (自由基），which cause cell damage and lead to various illness. Therefore, to keep fit, eat more sweet potatoes.
72. According to the text, there exists a lot of ______in sweet potatoes.
A. fiber, beta carotene, other carotenoids, Vitamin E and C
B. beta carotene, other carotenoids, fiber, Vitamin A and E
C. Vitamin A, beta carotene, fiber, Vitamin E and C
D. beta carotene, other carotenoids, Vitamin A and E
73. This text as a whole suggests that eating sweet potatoes can help______.
A. cut your risk of stroke and heart disease
B. protect against breast, lung and stomach cancers
C. protect against ailments ranging from cataracts to cancers
D. you stay healthy and reduce your risk of life-shortening diseases
74. “ This vitamin pill in an orange jacket” in the passage refers to______.
A. sweet potato     B. vitamin C pill
C. vitamin E pill    D. beta carotene
75. The best title of this passage might be______.
A. On sweet potatoes             B. The vitamin superstar
C. Beta carotene and vitamins      D. Diet and disease

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


It was Thanksgiving morning and in the crowded kitchen of my small home I was busy preparing the traditional Thanksgiving turkey when the doorbell rang. I opened the front door and saw two small children in rags(破舊衣服) huddling together inside the storm door on the top step.
"Any old papers, lady? " asked one of them.
I was busy. I wanted to say "no" until I looked down at their feet. They were wearing thin little sandals(涼鞋), wet with heavy snow.
“Come in and I'll make you a cup of hot cocoa.”
They walked over and sat down at the table. Their wet sandals left marks upon the floor. I served them cocoa and bread with jam to fight against the cold outside. Then I went back to the kitchen and started again on my household budget.
The silence in the front room struck me. I looked in. The girl held the empty cup in her hands, looking at it. The boy asked in a flat voice, "Lady, are you rich? "
"Am I rich? no!"
I looked at my shabby slipcovers(舊家具套). The girl put her cup back in its saucer (茶托;淺碟)carefully and said, "Your cups match your saucers." Her voice was hungry with a need that no amount of food could supply. They left after that, holding their bundles of papers against the wind. They hadn't said "Thank you." They didn't need to. They had reminded me that I had so much for which to be grateful.
Plain blue china(瓷的) cups and saucers were only worth five pence. But they matched.
I tasted the potatoes and stirred the meat soup. Potatoes and brown meat soup, a roof over our heads, my man with a good steady job--these matched, too.
I moved the chairs back from the fire and cleaned the living room. The muddy prints of small sandals were still wet upon my floor. Let them be for a while, I thought, just in case I should begin to forget how rich I am.
1. Why did the writer let the children in?
A. She showed great pity on them.
B. She wanted to sell old papers.
C. She knew them and wanted to make them a cup of cocoa.
D. She wanted to invite them to her Thanksgiving party.
2. The girl thought the writer was rich perhaps because_________
A. she saw that the lady's room was comfortable
B. she saw the cups matched the saucers
C. the writer's slipcovers were very new
D. the woman had expensive clothes
3.What was the weather probably like when the story happened?
A. cloudy     B. sunny      C. windy      D. snowy
4. From the passage, we can infer that whether you are rich depends on_______
A. how much money you have had    B. how you feel about your life
C. how you have helped others       D. what job you are doing

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

The purpose of a letter of application(求職信) is to help you to “sell” yourself. It should state__16___ the job you want, and should tell what your abilities are and what you have ___17___. It should be simple, human, personal and brief without ___18___ out any necessary facts.
In writing a letter of application, keep in ___19___ that the things a possible employer is most ___20___ to want to know about are your qualifications(條件), your achievements and your aims. The opening paragraph is perhaps the most important part. ___21___ the first few sentences fail to ___22___ the reader’s attention, the rest of the letter may not be __23___ at all. Try to key your opening remarks to the needs or interests of the employer not ___24___ your own need or desires. For example, instead of beginning with “I saw your ___25___ in today’s newspaper,” you might say “I have made a careful ___26___ of your advertising during the past six months” or “I have made a survey in my neighborhood to find out how many housewives ___27___ your product and why they like it. ”
Try to ___28___ generalities. Be clear about the kind of job for which you are now ___29___. College graduates looking for their first positions often ask “What can I ___30___ in a letter? Employers want experience—which, naturally, no ___31___ has.” The answer is that everything you have ever done is ___32___.
It is important to write a good strong closing for your letter. ___33___ a specific request for an interview or give the possible employer something definite to do or expect. An excellent ___34___ is to enclose(內(nèi)附) a stamped, self-addressed envelope with your letter. That makes it ___35___ for a possible employer to get in touch with you.
16. A. clearly                   B. carefully               C. obviously              D. easily
17. A. found                    B. done                     C. known                  D. heard
18. A. sending                  B. taking                   C. leaving                 D. picking
19. A. brain                     B. sight                     C. order                    D. mind
20. A. probable                B. possible                C. likely                   D. able
21. A. While                    B. Although              C. As                        D. If
22. A. pay                        B. win                      C. show                    D. fix
23. A. kept                       B. continued              C. written                 D. read
24. A. to                          B. for                       C. into                      D. from
25. A. advertisement       B. report                  C. article                   D. introduction
26. A. watch                    B. search                   C. study                    D. discussion
27. A. change                   B. make                    C. sell                       D. use
28. A. avoid                     B. remember             C. protect                  D. gain
29. A. losing                    B. applying               C. preparing              D. fitting
30. A. do                         B. write                    C. mean                    D. provide
31. A. worker                   B. beginner               C. owner                   D. manager
32. A. success                   B. development              C. practice          D. experience
33. A. Make                     B. Ask                      C. State                    D. Get
34. A. result                     B. decision                C. promise                D. idea
35. A. happier                  B. easier                   C. cheaper                 D. safer

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


For many years, no one could communicate with people who had been born without hearing. These deaf people were not able to use a spoken language.
But, beginning in the 1700s, the deaf were taught a special language. Using this language, they could share thoughts and ideas with others. The language they used was a language without sound. It was a sign language.
How did this sign language work? The deaf were taught to make certain movements using their hands, faces, and bodies. These movements stood for things and ideas. People might move their forefingers across their lips. This meant, “You are not telling the truth.” They might tap their chins with three fingers. This meant “my uncle.”
The deaf were also taught to use a finger alphabet (字母). They used their fingers to make the letters of the alphabet. In this way, they spelled out words. Some deaf people could spell out words at a speed of 130 words per minute.
Sign language and finger spelling are not used as much as they once were. Today, the deaf are taught to understand others by watching their lips. They are also taught how to speak.
1. The deaf “talked” to other people __________.
A. by moving their hands, faces and bodies
B. by shouting and singing
C. without using any letters         
D. without using any language
2. The deaf could spell out words __________.
A. by reading them aloud
B. by going here and there
C. by expressing the letters with their fingers
D. by watching others
3. Now, the deaf are trained to __________.
A. write sentences quickly
B. understand others by lip-reading
C. be good at mind-reading
D. keep alone happily
4. The story as a whole is about __________.
A. learning to spell                      B. teaching the deaf to speak   
C. how the deaf communicate             D. understanding Indian sign language

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


Beijing leading schools say “No” to students’ mobile phones.
Three reasons make some leading schools in Beijing discourage middle school students from bringing mobile phones to campus.
First, it is dangerous for children to bring valuable mobile phones along to school for it is possible for them to be lost during physical exercise and other activities and may cause unnecessary trouble to teachers.
Second, mobile phones are bad for students’ studies. Many teachers complain that some students have phone calls in class, disturbing themselves and others.
Third, mobile phones serve as a hotbed for students’ vanity（虛榮）. A new Grade One senior high school student in a leading school asked his parents to buy a 4000-yuan colored-screen mobile phone, which turned out to be his fifth one ever since he entered the middle school.
Most headmasters and teachers in leading schools of Beijing thought that IC telephones on campus have made it very easy for students to get in touch with others, so middle school students should not bring mobile phones to school at present.
1. According to the passage, without mobile phones, how can the students get in touch with others?
A. By writing letters to each other.                       B. By sending e-mails.
C. By using IC telephones.                          D. By no means.
2. Which is NOT the reason that makes the schools say “No” to students’ mobile phones?
A. It is not safe for children to bring mobile phones to school.
B. It may give students a feeling of vanity.
C. It is bad for students’ studies.
D. Most headmasters and teachers don’t want students to bring mobile phones to campus.
3. Why did the new Grade One student ask to buy him the fifth mobile phone since he entered the school?
A. His family had a lot of money.
B. He wanted to show that his family was very rich.
C. His parents loved him too much.
D. The first four mobile phones were all lost.
4. What is the writer’s attitude towards students’ bringing cell phones to school?
A. negative.         B. acceptable.        C. not mentioned.     D. positive. 

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


Making greener choices, from the food you eat to the way you travel, can improve your health．A recent article advises people should try low–carbon (低碳) lifestyles which could be the most important contribution to yourself, even the earth．Some guidelines follow:
1．Use your own power rather than oil whenever you can     
Burning oil in your car makes pollution like carbon dioxide (CO2) that causes global warming．Cutting down on driving and using your own two legs helps cut global warming pollution and helps reduce weight problems over time without dangerous diets or surgery．
If all Americans used foot instead of engine as daily exercise during normal travel, we could reduce our oil dependence by more than a third．Besides, by using a push mower(剪草機) instead of a power mower to cut your lawn, you can also cut up to 80 pounds of CO2 per year! And you’ll get a great workout!
2．Drop the bottled water, drink tap (自來水)     
Drinking plenty of water is important during hot weather or when exercising．You may think bringing bottled water with you can be both convenient and harm-free to the environment．But, you may change your mind if you see the truth below in 2006, 30 billion plastic water bottles were made, which used the amount of more than 17 million barrels(桶)of oil–enough to fuel more than one million cars for a year, and produced more than 2.5 million tons of carbon dioxide．
If you have worries about your tap water, clean it regularly! The truth is that tap water is no worse than bottled water ant it saves much money．
3．Choose foods carefully
There are some general ways you can follow that are good for you and the planet:
a．Eating less meat and more grains and vegetables helps reduce the need to cut down forests to grow the food for animals
b．Buying local food may be environmentally–friendly．Locally grown foods often use much less oil in transport than the foods coming from somewhere far away, which would help reduce CO2 amount．
For more information, you may consult http://www.edf.org/
1．What benefit can people make if they walk more but drive less?
A．More pollution will be made during the process．
B．There will be no obvious effect on reducing the amount of carbon dioxide．
C．Every year, more than 30% of the oil can be saved, which will help weaken global warming．
D．People’s weight will stay the same, and they still need to go on a diet to get thinner．
2．Why should we change our preference to bottled water?
A．Bottled water contains more good things for our health．
B．Tap water is not clean enough for people to drink．
C．Bottled water is more expensive than tap water for its better quality．
D．Tap water is as good as bottled water, which wastes so much resource during its production．
3．If you mean to protect the environment, you will ________．
A．often buy food from foreign countries        B．seldom eat meat for dinner
C．usually drive to work and home               D．never boil tap water to drink
4．Which of the following statements is TRUE?
A．Low–carbon lifestyles bring more harm than benefit to nature．
B．Man’s daily life activities have no effect on the changes of the environment．
C．What you eat can not only be good for your health, but also for the health of the earth．
D．The choice of food is completely personal, which won’t be important for nature at all．

查看答案和解析>>

同步練習(xí)冊答案