日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

精英家教網 > 初中英語 > 題目詳情

For thousands of years, people have used plants to make medicines. They used different parts of the plants —the roots, the leaves, the flowers, and the bark (樹皮). Today, doctors have rediscovered more medicinal (藥用) values of some plants. Let’s look at some examples.
Foxglove is a common plant. People have used it to make the heart slow down. Recently scientists have developed another drug from it. This new drug helps prevent other heart problems.
In some areas, malaria has been a problem. Scientists have learned that the bark of a South American tree, the cinchona, can be made into a drug to prevent malaria. For a long time, the Chinese have known that a special plant, wormwood, can also fight malaria. Scientists have been working with it to develop new drugs against malaria.
In Germany, some scientists studied garlic (大蒜) for four years. They found that it helps prevent the build-up of plaque (血小板) because too much plaque is bad for health. This very common plant continues to be studied.
As we know, there are about 250,000 kinds of flowering plants in the world. Scientists have only studied little more than one percent of plants for their medicinal value. Maybe medicines for AIDS and cancer will be made from the other 99 percent

  1. 1.

    What can foxglove be used for?

    1. A.
      Studying plants
    2. B.
      Building up the plaque
    3. C.
      Treating AIDS and cancer
    4. D.
      Preventing heart problems
  2. 2.

    What does the underlined word “malaria” in Paragraph 3 refer to (指的是)?

    1. A.
      A drug
    2. B.
      A plant
    3. C.
      An illness
    4. D.
      An animal
  3. 3.

    How many plants are mentioned in the passage?

    1. A.
      3
    2. B.
      4
    3. C.
      5
    4. D.
      6
  4. 4.

    Which of the following is the best title for the passage?

    1. A.
      Past and future
    2. B.
      Plants and medicine
    3. C.
      Health and illness
    4. D.
      Scientists and doctors
DCBB
試題分析:這篇短文主要講述了一些利用植物防治疾病的知識.
1.根據短文第二段描述可知,毛地黃主要用來防治心臟病,故選D.
2.聯系下文the cinchona, can be made into a drug to prevent malaria. 可知這是一種疾病,故選C.
3.根據短文描述,可知主要提到四種植物,毛地黃,金雞納,艾草和大蒜.故選B.
4.這篇短文主要講述了一些草藥知識,故選B,植物和醫藥.
考點:關于草藥知識的說明文閱讀
點評:本文淺顯易懂,層次分明,學生很容易把握文章中心內容。答題中注意帶著問題閱讀短文,一般就能順利找出答題依據。對于不能直接找到根據的問題注意聯系上下文,根據短文中心總結出正確答案。
練習冊系列答案
相關習題

科目:初中英語 來源: 題型:閱讀理解


A rabbit is running into his hole. You may ask, “What happened?”
Well, when a rabbit sees something dangerous, it runs away. Its tail moves up and down as it runs. When other rabbits see this tail moving up and down, they ran, too. They know there is danger. The rabbit has told them something without making a sound. It has given them a signal.
Many other animals use this kind of language. When a bee finds some food, it goes back to his home. It can’t tell the other bees where the food is by speaking to them, but it does dance in the air. This tells the bees where the food is.
But animals say things by making sounds. A dog barks, for examples, when a stranger comes near. A cat purrs(發出呼嚕呼嚕的聲音) when pleased. Some birds make several different sounds, each with its own meaning.
But human beings have something that no animals have---- a large number of words about things, actions, feelings or ideas. We are able to give each other information to tell or inform other people what is in our mind or how we feel. By writing words down we can remind ourselves of the things that have happened, or send messages to people far away. No animals can do this. No animals has the wonderful power of language.
No one knows how man learned to make words. Somehow he learned to make them. As centuries went by, he made more and more new words. This is what we mean by language.
People in different countries made different kinds of words. Today there are about fifteen hundred different languages in the world. A very large English dictionary, for examples, contains four or five hundred thousand words. But we don’t know all these. The words we know are called vocabulary. We should try to make our vocabulary larger. Read as many books as possible. When we met a new word, look it up in the dictionary. A dictionary is the most useful book.
【小題1】What’s the meaning of the underlined word?
A.標語B.信號C.唱片D.圖像
【小題2】A dog can tell something__________.
A.by giving signalsB.by making different sounds
C.by purringD.by barking
【小題3】It has been proved that no animals are able to_________.
A.give the others information
B.express their actions and feelings with words
C.tell others how they feel
D.make different sounds, each with its own meaning.
【小題4】Generally speaking, what we mean by “vocabulary” is_______.
A.all the words that we knowB.more and more words we use
C.all the words we needD.the dictionary which contains thousands of words
【小題5】What must we do in order to make our vocabulary larger?
A.Make more and more new words
B.look up some new words in a dictionary
C.learn more language
D.Try to read as many books as possible

查看答案和解析>>

科目:初中英語 來源: 題型:閱讀理解

Chinatown is the name given to an area in the middle of London. It is just between Leicester Square and Shaftsbury Avenue. Gerrard Street is at the center and is the most important street in the area. There is a large Chinese community(社區) with a lot of Chinese restaurants, Chinese supermarkets and shops in this street.
In the 1950s, it was a poor area and everything was very cheap. At the same time, the world rice market changed and thousand of farm workers in Hong Kong lost their jobs. They began arriving in London to look for work. They found jobs in the restaurants in this area. Many British people like Chinese food, and the restaurants were popular.
These restaurant workers often worked 17 hours a day and had no time to learn English. As more Chinese arrived, more shops and businesses grew up. Wives came and joined their husbands and children came and joined their fathers. The community grew, and Chinatown was born.
In the 1970s and 1980s, British-born Chinese started to have a better education and this brought economic(經濟的) success to the area. Many families moved out of Chinatown, and there was more space for businesses. Gerrard Street become a street only for visitors and was soon a popular place for tourists.
Now everyone knows about London’s Chinatown. During the Chinese New Year, the streets are seen with flags and thousands of Chinese go into the streets. For most of the year, though, Londoners and tourists go there mainly for the food in the Chinese restaurants. They best restaurants are the ones where the Chinese eat.
【小題1】Is this Chinatown in the middle of London?
【小題2】 Ws the area rich or poor in the 1950s?
【小題3】 Why did the restaurant workers have not time to learn English?
【小題4】 When did British-born Chinese start to have a better education?
【小題5】 What are the main points about Chinatown in this passage?

查看答案和解析>>

科目:初中英語 來源: 題型:閱讀理解

       Who hasn’t enjoyed eating peanuts? Did you know that although peanuts look like nuts and taste like nuts, they aren’t nuts at all? They belong to the pea family, so they are called peanuts. The peanut grows flowers above ground, but its “fruit” grows underground. It grows in more countries than most other “nuts”.
The peanut is a native South American plant. Scientists believe that it grew wild in Brazil long ago. They think that for several thousand years the early peoples of South America made it a part of their diet. These peoples were nomads who moved on when a natural food could no longer be found in one area. Along the way they probably let fall some peanuts, which got into the ground and grew. This is believed to be the way the plant reached the place where the Incas(印加人)lived. The Incas, from about 1100 to 1532, thought highly of peanuts. The peanuts were eaten in several forms and used as sacrificial offerings(祭品)to the Incan Sun God. Later in the 16th century, European soldiers had brought peanuts to other parts of the world, including North America, Africa, Asia, Europe, and Pacific Islands.
Although peanuts were found native in South America, they are now grown in almost every country that has warm weather. India produces the most peanuts. China’s production is next, followed by the United States.
The peanut is special in more ways than one. It can be eaten raw, boiled, roasted, or fried. Hundreds of widely different products have been made from it. Carver, an American scientist, set himself the task of discovering new uses for eating and for many other products.
Peanuts are very highly nutritious and are also high in protein (蛋白質). Americans use about seven-tenths of their protein in the form of meat. In India, where the poor can’t pay for meat or milk, peanut meal and peanut milk have been produced. These have been a great help to the poor.
New products are continually being made from peanuts, among them peanut cheese and a powder that becomes peanut butter when water is added. The fact is that peanuts are so healthy that they were used by astronauts. The unusual nut that isn’t a nut is one of nature’s most amazing gifts.
【小題1】 Although we like eating peanuts, many of us don’t know peanuts belong to _______ family.
A.the peaB.the nutC.both the pea and the nutD.neither the pea nor the nut
【小題2】 Which paragraph(段落)mainly talks about the history of the peanut?
A.Paragraph FourB.Paragraph Three
C.Paragraph TwoD.Paragraph One
【小題3】What does the underlined word nutritious mean?
A.Helpful for staying healthy.B.Helpful to the poor.
C.Delicious and tasty.D.Rich in fat and oil.
【小題4】 Which of the following is TRUE according to the article?
A.Nomads always stayed in the same place.
B.The peanut was first found in South America.
C.Astronauts ate lots of peanuts to keep healthy.
D.China grows fewer peanuts than the US.
【小題5】What is the purpose of the article?
A.To show that peanuts belong to the pea family.
B.To advise us to use more peanut products.
C.To tell us some new uses of peanuts.
D.To let us know more about peanuts.

查看答案和解析>>

科目:初中英語 來源:2012-2013學年江蘇省南京市鼓樓區中考二模英語卷(解析版) 題型:閱讀理解

根據短文內容,完成文后任務。注意:每個空格只填一個單詞。

Are people less happy or happier when they get older? If your answer is “happier”, then you are right, based on a study published five years ago. It found that people generally become happier and experience less worry after age fifty. In fact, it found that by the age of eighty-five, people are happier with their life than they were at eighteen.

The findings came from a Gallup survey of more than three hundred and forty thousand adults in the United States in 2008. At that time, the people were between the ages of eighteen and eighty-five.

Arthur Stone in the Department of Psychiatry and Behavioral Science at Stony Brook University in New York led the study. His team found that levels of stress were the highest among adults between the ages of twenty-two and twenty-five. Stress levels dropped sharply after people reached their fifties.

Levels of happiness were the highest among the kids and those in their early seventies.

The survey also found that men and women have similar emotional patterns as they grow older. However, women at all ages reported more sadness, stress and worry than men did.

So why would happiness increase with age? One theory is that, as people get older, they become more thankful for what they have and have better control of their emotions. They also spend less time thinking about bad experiences.

Title: Relationship Between Age and   1.          

The elements of the survey

Time: 2008

Place: in the United States

Researcher: Arthur Stone and his 2.

Targets: 340,000 adults

The 3.of the survey

Generally people become happier and feel4.worried after age 50. By the age of 85, people are happier with their life than they were at 18.

Adults between the ages of 22 and 25 have the       5.stress.

The kids and those in their early 6.feel the happiest.

Men and women have similar emotional patterns as they grow older. However, women feel sadder, more 7.and worried than men do.

Conclusion

Happiness 8.with age. That’s because people become more thankful for what they have and control their emotions 9.as they get older. It also      10.them less time to think about bad experiences.

 

 

查看答案和解析>>

科目:初中英語 來源:2011--2012學年江蘇省海門市九年級九年級上學期期中考試英語卷 題型:其他題

請認真閱讀下面短文,并根據短文內容回答問題。

Nearly all American students in colleges and universities pay for their education. There are many expenses. First of all, there is tuition (學費). At some schools, the tuition is very high, ten thousand dollars a year or more. At other schools, it may only be a few hundred dollars a year. At some community (社區) colleges, tuition is free. There are other expenses as well. Many students leave their homes to go to schools in other cities. They may live in dormitories or apartments ( flats), and they must pay for it. Finally, students must buy textbooks for their courses. Some families start saving money for their children's education when the children are small. Many students work to save money for tuition. They can also get loans (貸款) from the government. They pay the money back to the government when they finish their education.                        

1. Which students pay for their education?

2. How much is the higher tuition?

3. Are there any free tuition colleges?

4. What must students buy finally?

5. When do many students pay back their loans from the government?

 

查看答案和解析>>

同步練習冊答案
日韩在线观看成人| 一本色道久久综合亚洲精品按摩| 国产精品17p| 久久精品日韩无码| 国产精品999| 91精品国产黑色紧身裤美女| 成人一区二区三区| 色喇叭免费久久综合| 7777kkk亚洲综合欧美网站| 男女黄床上色视频| 妞干网这里只有精品| 国产成人高潮免费观看精品| 久久av在线看| 欧美猛男gaygay网站| 久久久另类综合| 国产欧美一区二区三区国产幕精品| 亚洲人成777| 香蕉视频网站在线观看| 一炮成瘾1v1高h| av在线播放中文字幕| 99免费视频观看| 欧美成人dvd在线视频| 2019亚洲日韩新视频| 精品国产乱码久久| 亚洲国产精品久久艾草纯爱 | 欧美精品一区二区免费| 欧美综合色免费| 国产精品久久久久婷婷| 蜜桃一区二区三区在线| 国产精品精品国产一区二区| 麻豆一区在线| 美足av综合网| 毛片免费在线观看| 成人小说亚洲一区二区三区| 中文字幕日韩一级| 99精品欧美一区二区| 三上悠亚av一区二区三区| 中文字幕在线亚洲三区| 91亚洲精品丁香在线观看| 国模私拍视频一区| 国产午夜精品免费一区二区三区 | 国产精品久久国产| 国产欧美日韩亚洲| 国产精品99久久久久久白浆小说| 欧美专区第一页| 精品国产拍在线观看| 精品少妇v888av| 国产一区二区三区中文| 欧美一级精品大片| 91久久香蕉国产日韩欧美9色| 亚洲欧洲一区二区三区| 成人免费视频一区二区| 99视频国产精品| 久久国内精品视频| 性色av一区二区怡红| 中文字幕免费精品| 日韩一级毛片| 亚洲区国产区| 亚洲电影在线一区二区三区| 亚洲盗摄视频| jazzjazz国产精品久久| 丰满少妇一区| 亚洲色图官网| 男人久久天堂| 黑人精品视频| 二区三区四区高清视频在线观看| 酒色婷婷桃色成人免费av网| 国产黄色在线网站| 视频精品导航| 日本精品网站| 欧美色资源站| 欧美人妖视频| 精久久久久久| 影音国产精品| 国产激情视频一区二区在线观看| 九九九久久久精品| 毛片av中文字幕一区二区| 国产91色综合久久免费分享| 国产剧情av麻豆香蕉精品| 国产尤物一区二区| 国精产品一区一区三区mba视频| 久久久久久穴| 日韩电影网1区2区| 久久国产精品色| 久久精品视频一区二区| 欧美性xxxx| 色网站国产精品| 亚洲国模精品一区| 精品亚洲永久免费精品 | 99精品综合| 免费人成黄页网站在线一区二区| 国产拍揄自揄精品视频麻豆 | 国产精品日韩一区二区三区| 成人做爰66片免费看网站| 成人有码在线播放| 国产精品香蕉视屏| 日本a在线免费观看| 国产精品宾馆在线精品酒店| 免费日韩中文字幕| 亚洲一二三不卡| 欧美老女人bb| 色哟哟精品观看| 免费看91的网站| 亚洲视频久久久| 囯产精品一品二区三区| 中国av在线播放| 日本精品不卡| 午夜av不卡| 精品精品99| 亚洲性人人天天夜夜摸| 99久久婷婷国产综合精品电影| 欧美午夜女人视频在线| 日韩一区二区av| 国产视频一区二区不卡| 午夜视频你懂的| 国产高清成人久久| 男人晚上看的视频| 奴色虐av一区二区三区| 特黄aaaaaaaaa真人毛片| 理论视频在线| youjizz欧美| 日韩高清在线不卡| 亚洲不卡av一区二区三区| 欧美午夜寂寞影院| 亚洲国产一区自拍| 成人午夜在线观看| 日本a级片免费观看| 亚洲色图综合区| 一本到在线视频| 青草在线视频| 国产精品久久占久久| 91麻豆精品在线观看| 一区二区成人在线| 91精品免费在线| 一区二区三区四区视频| 亚洲一区二区三区四区在线播放| 日韩国产一区久久| 少妇高清精品毛片在线视频| 免费无码毛片一区二区app| 92久久精品一区二区| 麻豆成全视频免费观看在线看| 亚洲蜜桃视频| 亚洲欧洲日产国产综合网| 亚洲片在线资源| 国产999视频| 视频在线一区二区三区| 国产在线观看福利| 国产毛片久久久久久久| 高潮毛片又色又爽免费| 一级在线观看| 在线观看爽视频| 激情久久久久| 偷拍与自拍一区| 亚洲欧美国产高清va在线播| 91精品国产乱码久久久久久久久| 精品国产二区在线| 国产裸体免费无遮挡| 国产美女激情视频| 国产精品秘入口| 久久电影天堂| 亚洲午夜激情在线| 国产日产欧美精品一区二区三区| 欧美人与性动xxxx| 欧美激情xxxx性bbbb| 国产一区免费视频| 9.1成人看片免费版| 中午字幕在线观看| 精品三级在线| 国产精品456露脸| 日韩精品中文字幕在线| 色视频一区二区三区| 国产高潮流白浆| 三级网站视频在在线播放| 羞羞色国产精品网站| 久久国内精品视频| 亚洲精品在线电影| 日本一区二区三区视频在线观看| 手机在线免费毛片| 老熟妇仑乱一区二区av| 国产在线观看网站| 久久亚州av| 国产麻豆日韩欧美久久| 日韩精品中文字幕在线播放| 一区二区三区精品国产| 水蜜桃av无码| 国产女人在线观看| 韩国亚洲精品| 7777精品伊人久久久大香线蕉经典版下载| 成人av片网址| 日韩一区二区三区不卡视频| 99热国产在线观看| 超碰这里只有精品| 91久色porny| 欧美日韩福利电影| 亚洲免费av一区| 中文字幕乱码人妻二区三区| 国产在线xxx| 国产在线视频一区二区| 一区二区三区四区精品| 国产在线青青草| 黄色成人一级片| 99精品视频在线观看免费播放 | 欧美日韩日日摸| 日本欧美精品久久久| 在线天堂中文字幕| 中文字幕视频精品一区二区三区| 精品中文字幕一区二区小辣椒| 日韩精品中文字幕在线| 日本人体一区二区| 色一情一乱一乱一区91av| 91综合久久一区二区| 自拍av一区二区三区| 国产精品入口免费视频一| 欧美性猛交久久久乱大交小说| 高清一区二区三区四区| 久久久久久久久久久久久久久久久久 | 800av在线播放| 蜜桃91麻豆精品一二三区 | 黄色亚洲免费| 精品国产一区二区三区不卡 | 亚洲黄色小说图片| 18aaaa精品欧美大片h| 国产成人高清在线| 97视频在线看| jizz大全欧美jizzcom| 日本福利在线观看| 精品一区二区三区的国产在线观看| 欧美视频在线观看免费| 欧美三级网色| 肉色超薄丝袜脚交69xx图片| 欧美韩国亚洲| 亚洲美女免费视频| 91高潮精品免费porn| 丝袜美腿中文字幕| 欧美日韩亚洲国产| 亚洲精品美国一| 热99久久精品| 免费黄色激情视频| 精品一区二区三区四区五区| 亚洲大尺度视频在线观看| 久久综合狠狠综合久久综青草| 欧美brazzers| 外国成人激情视频| 日韩精品在线免费观看| 亚洲天堂av一区二区| 蜜桃av成人| 婷婷精品进入| 日韩激情第一页| 妞干网这里只有精品| 午夜国产在线视频| 91精品啪在线观看国产18| 亚洲第一区在线| 中文字幕日韩精品无码内射| 亚洲婷婷久久综合| 99re热精品视频| 欧美午夜不卡视频| 人妻av中文系列| 亚洲av无码国产综合专区 | 狠狠躁夜夜躁人人爽视频| 亚洲成人av| 中文字幕日韩精品在线| 37pao成人国产永久免费视频| 国产大学生校花援交在线播放| 高清成人在线观看| 国产日本欧美在线观看| 午夜精产品一区二区在线观看的| 麻豆久久久久| 在线观看日韩电影| 久久久久久久久久久久久国产精品| 午夜视频在线观看网站| 国产欧美日韩视频一区二区| 蜜桃久久精品乱码一区二区| 日韩在线观看视频网站| 一区二区影院| 久久精品国产电影| 91视频福利网| 精品乱码一区二区三区四区| 欧洲另类一二三四区| 免费观看成人在线视频| www.51av欧美视频| www欧美成人18+| 久久综合九九| 香蕉视频在线观看免费| 白白色 亚洲乱淫| 精品国产综合区久久久久久| 色噜噜在线播放| 国产成人免费视频网站高清观看视频 | 国产精品一区二区无线| 3d蒂法精品啪啪一区二区免费| 99热这里只有精品3| 日韩在线中文| 美女999久久久精品视频| 色老板免费视频| 亚洲精品高潮| 亚洲福利小视频| 人妻视频一区二区| 欧美系列电影免费观看| 91精品国产aⅴ一区二区| 亚洲日本黄色片| 精品一区二区三区四区五区| 亚洲大胆美女视频| 中国毛片在线观看| 国产欧美日韩一区二区三区四区| 91麻豆精品91久久久久同性| 欧美大片久久久| 日韩精品三级| 欧洲一区二区三区在线| 久久久久久久久久久久久久久国产| 国外成人福利视频| 亚洲福利在线看| 国产大屁股喷水视频在线观看| 国产精品国产一区| 欧美性做爰毛片| av观看在线免费| www.欧美.com| 干日本少妇视频| 中文字幕在线免费观看视频| 欧美日韩激情在线| 丰满少妇在线观看资源站| 日韩大片在线播放| 欧美综合第一页| 精品久久久久成人码免费动漫| 欧美黄色aaaa| 一区二区国产精品视频| 日韩av片在线免费观看| 在线看片一区| 国产精品久久久久久久久久久久久久 | 国产精品女同一区二区三区| 免费看啪啪网站| 麻豆tv入口在线看| 国产精品亚洲午夜一区二区三区 | 7m精品福利视频导航| 一级黄色短视频| 国产久卡久卡久卡久卡视频精品| 五月天色一区| 天堂av中文在线| 亚洲第一福利一区| 成人做爰www看视频软件| 国产在线xxx| 日韩精品一区二区三区老鸭窝| 国产又粗又长又大的视频| 在线欧美激情| www.日本久久久久com.| 一区二区三区视频免费看| 国产一区二区三区美女| 午夜欧美性电影| 色yeye免费人成网站在线观看| 日韩一区二区影院| 91视频最新网址| 蜜臀a∨国产成人精品| 欧美高清性xxxxhd| 91老司机福利在线| 日韩视频永久免费| 黄色一级大片在线免费观看| 久久久久国产精品午夜一区| 久久天天狠狠| 无码精品在线观看| 日本一区二区三区四区| 永久免费网站视频在线观看| 日本免费不卡| 精品国产精品自拍| 成人片黄网站色大片免费毛片| 欧美网站在线| 久热在线中文字幕色999舞| 亚洲天堂男人网| 久久久久国产精品人| 在线观看免费成人av| 国语一区二区三区| 国产成人97精品免费看片| 亚洲网站情趣视频| 性做久久久久久免费观看 | 日韩伦理一区二区| 久久全国免费视频| а√天堂www在线а√天堂视频| 国产综合色精品一区二区三区| 亚洲欧洲国产精品久久| 国产精品视频一区二区久久| 91精品国产免费| 日韩av在线播放观看| 欧美精选在线| 欧美区高清在线| 毛片网站在线看| 中文字幕亚洲激情| www.激情五月.com| 国产精品激情偷乱一区二区∴| 欧美与动交zoz0z| 台湾佬成人网| 亚洲综合成人在线视频| 亚洲美女免费精品视频在线观看| www.av88| 国产精品久久影院| mm131美女视频| 97超碰人人看人人 | 日韩精品久久久久久久的张开腿让| 99麻豆久久久国产精品免费优播| 在线观看一区二区三区视频| 日韩免费一级| 成人在线精品视频| 成人国产一区| 91亚洲精华国产精华|