Why do you think people who live in some hot countries eat very spicy(辛辣的)food? Is it because the spices make the food taste better? Is it just because their parents and grandparents and great-grandparents liked hot food,or is there some connection between spices and healthy food?
Researchers from Cornell University think that it is because spice plants have some important chemicals(化學物質(zhì)).These chemicals can kill bacteria(細菌)which spoil food.
“Most common spices can kill 75 to 100 percent of the bacteria in food,”explains one of the scientists.The bacteria grow more easily and spoil food more quickly at higher temperatures.For this reason,it is more difficult to keep food from spoiling in hot climates,
Do you like your food spicy? Your answer probably tells something about the country you come from.If you like spicy food,it is possible that hundreds of years ago,when there were no fridges,people in your country started using spices to keep the food from spoiling.The traditional spicy dishes helped those people to live longer,healthier lives.Today,in a time of fridges,the spices just make the food taste good.
小題1:The chemicals in spices keep food from spoiling by_________.
A.making food taste better
B.making food hotter
C.killing bacteria in food
D.preventing bacteria getting into food
小題2:Food goes bad more quickly in hot climates because_______.
A.high temperature makes more bacteria
B.high temperature helps bacteria grow faster
C.bacteria get used to hot food
D.bacteria spoil food only at high temperature
小題3:According to the passage,spices are useful in an the following things except_______.
A.replacing fridges
B.helping you to live longer
C.helping to keep you healthier
D.making your food taste better

小題1:C
小題1:B
小題1:A

文章講的是為什么人們喜歡吃辛辣的食物的原因。
1. C 細節(jié)考理題,從These chemicals can kill bacteria(細菌)which spoil food可知它們可以殺死食物中的細菌,故選C。
2. B 從The bacteria grow more easily and spoil food more quickly at higher temperatures可知氣溫越高細菌越容易越快生長,從而導致食物的變質(zhì),選B。
3. A 此題是對全文內(nèi)容的分析。從文章最后一段可知B,C,D正確,有段時間把辛辣食物放裝箱里只是讓食物更好吃,更沒有說能代替冰箱,故D說法片面不正確,選A。
練習冊系列答案
相關習題

科目:初中英語 來源:不詳 題型:閱讀理解

What do people do with their old, out-of-date but still useful computers? Most people don’t know what to do with them. Many old computers are put away in homes. Many more are simply thrown out with the rubbish.  
Some companies are thinking of ways to bring down the number of old computers. Sony has agreed to help recycle old Sony products. Dell, Hewlett-Packard and other companies now also take back some old computers.  
In some countries, laws are being passed, too. Computer companies will have to collect and recycle their used products. And 70% of computer waste must be recycled. The idea behind the laws is that computer companies themselves should pay the cost. That will encourage them to make computers that are easier and cheaper to repair and upgrade(升級).  
Yet while many people are throwing away good computers, others cannot afford them at all. Hundreds of organizations are working to solve this problem. They collect and repair old computers. Some also teach others how to repair computers.  
The computers then go to schools, charities and people who need them. Giving a used computer to one of these organizations can turn one person’s rubbish into someone else’s useful things—and cut down on waste, too.  
小題1: How do people usually deal with their old computers?  
A. They stop using them. B. They give them to others.   C. They fix them up.  
小題2: What do some computer companies do to bring down the number of old computers?  
A. They don’t do anything about them.  
B. They take back some old ones.         
C. They donate them to some charities.  
小題3:According to some countries’ laws, what must computer companies do?  
A. Collect and recycle most of computer waste.   
B. Repair and upgrade old computers.        
C. Make much cheaper computers.  
小題4: What may people who can’t afford computers think of the used computers?  
A. Expensive.        B. Useful.         C. Out-of -date.  
小題5: What is the passage about?  
A. Repairing old computers.  
B. Selling old computers.                
C. Recycling old computers.  

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Helping others is easier than you think. You don’t need to wait to become a rich man like Bill Gates to help poor. You can become a volunteer, you can donate(捐獻) your time, you can donate your old clothes and so on. And in doing so, you can become a better and happier person.
Choose some people to support. for example, homeless people, poor children and so on. All of these are suitable(合適的).
Decide what you are able to give. Yes! Sometimes it isn’t only money—you can donate your time as a volunteer, you can donate your knowledge teaching poor children, you can donate your old clothes, you can donate food or you can share a meal with a hungry child.
Tell people about it. Tell your friends or your children. Put it in your blog or on your website. In this way, the good work you do will be multiplied(增加)!
根據(jù)材料內(nèi)容,選擇最佳答案。
1. People usually think helping others is ________.
A. difficult          B. easy        C. interesting             D. exciting
2. How can you help others of you are poor according the passage?
A. Donate your money.  B. Talk to them.  C. Donate your time.  D. Play with them.
3. What’s the meaning of the underlined word “homeless”?
A.家境貧寒的            B.無家可歸的       C.無依無靠的      D.沒有父母的
4. How many ways does the passage tell us to do if we want to help others?
A. One.                   B. Two.           C. Three.            D. Four.
5. What’s the best title of this passage?
A. Help those who need help                      B. It is not easy to help others
C. How to be a happy person                         D. Donate your time

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空


The purpose(目的) of students51 come to school is to study. But52 needs the right way or we would waste the time or the money. The followings are ways for studying.
The 53time for reading is morning. Because in the morning, the air is fresh and our mind are clear. For that reason, we can get good results
When we study we must be patient(有耐心的). If we don’t understand a test well, We must read it again. We should not read the next54 we have learned the first one well.
When we are studying we must put our hearts 55 the book. We can not read absent-mindedly(心不在焉的), or we could get56 from the book while we are reading.
We must always ask “why”. If it is not57 understand, write it down ask our teacher or parents, brothers or friends, in58 possible way We must know it completely and then our knowledge can be 59well.
Though there many ways of studying,60, the above mentioned(提到的) be quite enough if we can keep it in heart.      
小題1:
A.whoB.whoseC.whichD.they
小題2:
A.studiesB.be studyingC.to studyD.studied
小題3:
A.goodB.betterC.bestD.bad
小題4:
A.a(chǎn)sB.untilC.a(chǎn)fterD.if
小題5:
A.inB.intoC.toD.on
小題6:
A.somethingB.a(chǎn)nything
C.everythingD.nothing
小題7:
A.wellB.goodC.niceD.true
小題8:
A.someB.a(chǎn)nyC.a(chǎn)D.many
小題9:
A.useB.used
C.been usedD.Be used
小題10:
A.butB.howeverC.howD.still

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Dictionaries say that “spring fever” is a lazy or restless feeling . People usually have the feeling on the first warm day of spring. Everyone has probably felt it at one time or another . people have talked about it for years.
Recently, scientists have taken a good look at spring fever. What they found is quite surprising.
In many places we live in , the winter months often seem dark and dreary. When spring comes late March , the world becomes colorful . The number of daylight hours grows with each passing day. According to many scientists, all the sunlight sets off chemicals in the brain (大腦). The chemicals make our feeling change and bring on spring fever.
小題1:How do people who have spring fever feel ?
A.a(chǎn)ctiveB.a(chǎn)wake C.energeticD.restless .
小題2:Scientists think that _________ cause(s) spring fever .
A.colorsB.sunlightC.darkD.illness
小題3: According to the passage ,the underlined word “dreary ”means“______” in Chinese.
A.沉悶的B.暖和的C.晴朗的D.明亮的
小題4:The best title for the passage is ______________ .
A.How to Get Over Spring FeverB.Spring Fever
C.Darkness in winterD.Spring and winter

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Every morning, the newspaper chief editor(主編) holds a meeting with the reporters. They discuss the main events(事件) of the day. Reporters are then sent to cover the events.
As soon as the reporters know what to write about, they get down to work. They telephone people and fix a time for a face-to-face interview with them. Sometimes they do telephone interviews. Checking information is very important. They go to the newspaper’s own library to look up any information that they need. This is called “doing one’s homework”.
At the same time, the picture editor decides which photographs will be used for the next day’s paper. All the people who work on a newspaper must be able to work fast. Reporters have to stop working on one story and start working at once on the important new one. They must find out the new information as quickly as possible. Later in the day, everything is put together at the news desk. Reporters return, type their stories into the computer and hand them to the editor.
The chief editor decides which will be the most important story on the front page. Sometimes this will have to be changed if something more important happens late in the day. Other editors read the stories which the reporters have written and make any necessary changes.
Finally, there is no more time left for adding new stories, and the time for printing(印刷) the newspaper has come. This is done on fast-moving printing machines. The newspapers are then delivered(發(fā)送) by truck, plane or rail. Speed is important. People want to buy the latest newspaper; nobody wants to buy yesterday’s.
小題1:What is the work in a newspaper office like?
A.Interesting and confusingB.Important and patient.
C.Particular and necessary.D.Fast and busy.
小題2:According to the passage, the right order for a reporter’s work is ____________.
a. writing stories          b. doing interviews         c. joining in a discussion
d. doing homework        e. handing stories to the editor
A.cbadeB.cdeabC.cbdae D.cadbe
小題3:The front page contents(內(nèi)容) are decided by ___________.
A.the importance of the eventsB.how well the stories are written
C.the knowledge of the chief editorD.whether they are the latest
小題4:Word editors’ work is to ____________.
A.help the chief editor with the morning discussion
B.decide when and how the papers can be printed
C.read the stories and make necessary changes
D.get together information from reporters and photographers
小題5:The best title for this passage is “____________”.
A.How a newspaper is producedB.How newspapers are delivered
C.What kind of papers readers likeD.Whose work is more important

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

“If you want to see a thing well, reach out and touch it!”
That may seem a strange thing to say. But touching things can help you to see them better. Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth and cool the ball is. You can tell how heavy the glass it. When you feel all these about the ball, you really see it.
With your skin, you can feel better. For example, your fingers can tell the difference between two coins in your pockets. You can feel a little drop of water on the back of your hand, too. You can even feel sounds against your skin. Have you wanted to know why some people like very loud music? They must like to feel the sounds of music.
All children soon learn what “Don’t touch!” means. They hear it often. Yet most of us keep on touching things as we grow up. In shops, we touch things we might buy: food, clothes. To see something well, we have to touch it.
The bottom of our feet can feel things, too. You know this when you walk on warm sand, cool grass or a hard floor. All feel different under your feet.
There are ways of learning to see well by feeling. One way is to close your eyes and try to feel everything that is touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your skin. At first, it is not easy to feel these things. You are too used to them.
Most museums are just for looking. But today some museums have things for visitors to touch. Their signs say, “Do touch!” there you can feel everything on show.
If you want to see better, reach out and touch. Then you will really see.
小題1: By touching things ___________.
A.you will have a strange feeling
B.you will learn how to reach out your hand
C.you can see them well
D.you can tell what colors they are
小題2:According to the passage, which of the following CANNOT feel things?
A.Skin.
B.Fingers.
C.Feet.
D.Eyes.
小題3: Why does it say “At first, it is not easy to feel these things?” Because ___________
A.the things are used by people too
B.people feel the things too much
C.people know how to use the things
D.these things are familiar to you
小題4:You can see the sign "Do touch!"_____________________.
A.in every museum
B.in most museums
C.in some museums
D.only in one museum
小題5:The best way to see the world well is to ___________________.
A.touch by feeling
B.see or to feel
C.read
D.see and feel

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空

In today’s world many people seem to be hungry for money. Some of them even have lost their lives for it. Money does have a great effect on the poor, but if a person has a rich life, a lot more money doesn’t mean more happiness.
If money were everything, all millionaires would have true love, real friendship, health and a long life. However, this is not always true.
Nothing else is more pleasant than the three words “I love you”, but can love be bought? I’m afraid not . Love means “give”, not “take”. Health and a long life are precious things for every person. Well, can health and a long life be bought with money? The answer is “No”. Of all the people who live longest in the world, few of them are millionaires. Real friendship can’t be bought, either.
In a word, where money is worshiped, money can cause brothers to quarrel, lovers to hate, strangers to fight and so on, No matter how much money you have, it is still not enough to make you a happy person if you have no one to laugh with and no one to cry for.
閱讀上面短文,根據(jù)所給語境,按要求完成下列各題。(每空一詞)
小題1:根據(jù)①處完成下面的句子。(每空一詞)
It        that many people        hungry for money in today’s world.
小題2: 根據(jù)短文內(nèi)容,完成下面的句子。(每空一詞)
__________ love _______health can be bought with money.
小題3:將②處譯成中文.

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空

On a cold December morning, my mother and I were walking home from pizza store. We were served
warmly and equipped with the video we had been trying      . I was feeling a little tired      I was carrying our shopping bags of snacks and the video.
They were so     that I decided to throw away some of them. So I started to walk towards the dustbin when I noticed a poor man stepping out of the restaurant in front of us. He held a paper bag with his dirty hand. He headed for another nearby dustbin and started looking      something.
I suddenly felt very upset. I know this man would take all he could get, so I walked up to him and handed the drink and some snacks to him. The man, with lines on his face and wrinkles(皺紋) on his forehead, looked up in     and took what I gave him.
A huge smile spread across his face and this made     feel indescribable satisfaction(滿意). I felt like I couldn’t be happier with myself, but then he said, “Wow, first someone gives me this sandwich, then this drink, and now some tasty food, this is my daughter’s      day!”
He thanked me     and started off on his bike. I even heard him whistling(吹哨) a song as he
    away.
I now understand what is meant by the saying “Giving is getting”. Everyone in the world needs help, everyone can      help and everyone will be helped by something kind.
The image(圖像) of that man’s happiness caused by my small gift appears in my mind every time I have the chance to do something nice.
小題1:
A.to see B.to read C.to look D.to watch
小題2:
A.because B.when C.a(chǎn)lthough D.a(chǎn)fter
小題3:
A.dry B.dirty C.heavy D.salty
小題4:
A.through B.a(chǎn)round C.for D.over
小題5:
A.sight B.danger C.surprise D.trouble
小題6:
A.him B.me C.us D.them
小題7:
A.busy B.boring C.terrible D.lucky
小題8:
A.happilyB.unhappilyC.quietlyD.quickly
小題9:
A.walked B.rode C.ran D.flew
小題10:
A.offer B.receive C.refuse D.share

查看答案和解析>>

同步練習冊答案