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.What can foxglove be used for?

A．Studying plants.

B．Building up the plaque.

C．Treating AIDS and cancer.

D．Preventing heart problems.

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

A．A drug.                               B．A plant.

C．An illness.                             D．An animal.

3.How many plants are mentioned in the passage?

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

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

A．Past and future

B．Plants and medicine

C．Health and illness

D．Scientists and doctors

 

【答案】

1.D

2.C

3.B

4.B

【解析】

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(shí).

1.根據(jù)短文第二段描述可知,毛地黃主要用來(lái)防治心臟病,故選D.

2.聯(lián)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(jù)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(shí),故選B,植物和醫(yī)藥.

考點(diǎn)：關(guān)于草藥知識(shí)的說(shuō)明文閱讀

點(diǎn)評(píng)：本文淺顯易懂，層次分明，學(xué)生很容易把握文章中心內(nèi)容。答題中注意帶著問(wèn)題閱讀短文，一般就能順利找出答題依據(jù)。對(duì)于不能直接找到根據(jù)的問(wèn)題注意聯(lián)系上下文，根據(jù)短文中心總結(jié)出正確答案。

 

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源：2013屆浙江省蘭溪市梅江初中九年級(jí)上學(xué)期期中考試英語(yǔ)試卷（帶解析） 題型：閱讀理解

Entering a university is an important part of a person’s life. Today, many people go to study and train for a future job in subjects like law (法律), medicine or education. But the university is not a modern invention. It has a history that is over a thousand years.

The world’s oldest university, AL-Azhar, is in Cario, Egypt. It was first built as a mosque for religion (宗教寺院) in A.D.972. A few years later, learners and teachers began meeting in the mosque. They read and talked about the subject of law. Around 988, leaders in the city of Cario decided to open up a school for higher learning and the University of AL-Azhar was founded.
At AL-Azhar, there were many university ‘firsts’. Different subjects were set up. The earliest ones taught at AL-Azhar were in law and religion. In a course, students read and studied with the teacher, but there was also free discussion. Often, students and teachers talked about a topic (題目), and there was no ‘right’ answer. Finally, famous teachers from around the world came to AL-Azhar to teach and do deep studies on the subjects they were interested in. At the university, people studied the past, but it was also a place for exchanging new ideas.

Over a thousand years later, AL-Azhar is still an important university in the world. Its library keeps more than 250,000 of the world’s oldest and most valuable (有價(jià)值的) books. Today, many of the world’s most important universities such as Oxford and Harvard still follow the traditions started at AL-Azhar.
【小題1】From the first paragraph（段落） we know that _________.

A．universities are important to the city life
B．the university is a quite new invention
C．university education may help a person find law。
D．the university has a history of more than a thousand years
【小題2】AL-Azhar was first built for _______.
A．educationB．religionC．a(chǎn) meetingD．law
【小題3】Which of the following are the earliest subjects taught in the University of AL-Azhar?
A．Education and medicine.B．Religion and law.
C．Free discussion.D．History and tradition.
【小題4】Which of the following is not true about the University of AL-Azhar?
A．AL-Azhar was built in the city of Cario in Egypt.
B．AL-Azhar didn’t become a university until the years around 988.
C．The University of AL-Azhar was a place to read books.
D．Now AL-Azhar is still one of the famous universities in the world.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2011-2012學(xué)年廣東省梅州市梅州中學(xué)初三英語(yǔ)寒假?gòu)?fù)習(xí)英語(yǔ)試卷 題型：單詞拼寫

課文填空
Did you know that tea, the most popular drink in the world (after water), was invented by __________? Although tea wasn’t brought to the Western world _________ 1610, this beverage was __________ over three thousand years before that. __________ to an ancient Chinese legend, the emperor Shen Nong discovered tea when he was _________ drinking water __________ an open fire. Some __________ from a nearby bush fell into the water and __________ there for some time. The emperor noticed that leaves in the water produced a pleasant __________. Later he decided to taste the hot mixture. It was quite delicious. And _________ this way, one of the world’s favorite drinks was invented.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2011-2012學(xué)年江蘇省張家港市部分學(xué)校初二下學(xué)期期中考試英語(yǔ)試卷（帶解析） 題型：單詞拼寫

根據(jù)短文內(nèi)容和首字母提示，在下文空格處填入適當(dāng)?shù)脑~使短文完整。在標(biāo)有題號(hào)的橫線上，完整寫出空缺處所填單詞的正確形式。（每空一詞）

Earth Hour started in Sydney on March 31，2007. O___1___ two million homes and businesses turned off their lights for an hour. A year 1ater，in 2008，Earth Hour became the w____2____ activity and was supported by millions of people from thirty-five countries. In 2009，more than two thousand cities in the world take part in it，and Earth Hour came to China. The purpose of the activity is to s____3____ energy and improve climate(氣候). Earth Hour has brought about some great c__4__      to our lives.
We may have different ways of s___5___ the hour. For example, we can go to school on foot or b___6___ bike，plant more trees, use water more than once，never leave the lights o_7___ when we are not at home. Try to make full use of paper by using b   8    sides.[來(lái)源:Z*xx*k.Com]
Earth Hour is a call for us to work together for a bright f   9    .  It is also a message of hope and action. Everyone can make a difference. It’s time for us to make our environment b_10__. Come on! Join us in Earth Hour 2011!

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2011-2012學(xué)年山東省勝利七中初一上學(xué)期期中考試英語(yǔ)試卷（帶解析） 題型：閱讀理解

閱讀下面短文回答問(wèn)題
Thank you for joining CCTV’s around the World show. Today we are in Egypt(埃及). It’s beautiful sunny day! There are many people here on  .Some are taking photos. Others are riding camels （ 駱駝 ）.The Egyptians (埃及人)are wearing a kind of scarf on their heads. They look cool! They wear them because it is so hot . This is a very interesting place . I’m looking at the five thousand years of history .
【小題1】Where are they ?
________________________________________________________
【小題2】How is the weather in Egypt ?
________________________________________________________
【小題3】What are the people on vacation doing ?
_________________________________________________________
【小題4】Why do the Egyptians look so cool ?
________________________________________________________
【小題5】How many years is the history of Egypt ?
_________________________________________________________

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2013-2014學(xué)年江蘇省南京市高淳區(qū)九年級(jí)上學(xué)期期末質(zhì)量調(diào)研檢測(cè)英語(yǔ)試卷（解析版） 題型：其他題

A)閱讀下面短文，根據(jù)所讀內(nèi)容，完成表格，每空一詞。（每空1分）

  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 feel

  4.   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>>

同步練習(xí)冊(cè)答案