精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

精英家教網 > 高中英語 > 題目詳情

Prolonging human life has increased the size of the human population. Many people alive today would have died of childhood diseases if they had been born 100 years ago. Because more people live longer, there are more people around at any given time. In fact, it is a decrease in death rates, not an increase in birthrates, that has led to the population explosion.

Prolonging human life has also increased the dependency load. In all societies, people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures, old people who could not keep up might be left behind to die. In times of famine, infants might be allowed to die because they could not survive if their parents starved, where as if the parents survived they could have another child. In most contemporary(當代的) societies, people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work; we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement, somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illnesses than young or middle-aged people; unless they have wealth or private or government insurance, they must often “go on welfare” if they have a serious illness.

When older people become senile (衰老的) or too weak and ill to care for themselves, they create grave problems for their families. In the past and in some traditional cultures, they would be cared for at home until they died. Today, with most members of a household working or in school, there is often no one at home who can care for a sick or weak person. To meet this need, a great many nursing homes and convalescent (療養的) hospitals have been built. These are often profit making organizations, although some are sponsored by religious and other nonprofit groups. While a few of these institutions are good, most of them are simply “dumping (倒垃圾的) grounds” for the dying in which “care” is given by poorly paid, overworked, and under skilled personnel.

1.The author believes that the population explosion results from _______.

A.an increase in birthrates

B.the industrial development

C.a decrease in death rates

D.human beings’ cultural advances

2.It can be inferred from the passage that in hunting and gathering cultures _______.

A.it was a moral responsibility for the families to keep alive the aged people who could not work

B.the survival of infants was less important than that of their parents in times of starvation

C.old people were given the task of imparting the cultural wisdom of the tribe to new generations

D.death was celebrated as a time of rejoicing for an individual freed of the hardships of life

3.According to the passage, which of the following statements about the old people in the  United States is true?

A.Many of them live on social security money which is hardly enough.

B.Minority of them remain in a state of near poverty after their retirement.

C.When they reach a certain age, compulsory retirement is necessary and beneficial.

D.With the growing inflation, they must suffer more from unbearable burdens than ever.

4. The phrase “this need” in paragraph 3 refers to ________.

A.prolonging the dying old people’s lives

B.reducing the problems caused by the retired people

C.making profits through caring for the sick or weak people

D.taking care of the sick or weak people

5.Which of the following best describes the author’s attitude toward most of the nursing homes and convalescent hospitals?

A.Sympathetic.

B.Approving.

C.Optimistic.

D.Critical.

 

【答案】

1.C

2.B

3.A

4.D

5.D

【解析】略

 

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:閱讀理解

Prolonging human life has increased the size of the human population. Many people alive today would have died of childhood diseases if they had been born 100 years ago. Because more people live longer, there are more people around at any given time. In fact, it is a decrease in death rates, not an increase in birthrates, that has led to the population explosion.

Prolonging human life has also increased the dependency load. In all societies, people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures, old people who could not keep up might be left behind to die. In times of famine, infants might be allowed to die because they could not survive if their parents starved, where as if the parents survived they could have another child. In most contemporary(當代的) societies, people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work; we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement, somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illnesses than young or middle-aged people; unless they have wealth or private or government insurance, they must often “go on welfare” if they have a serious illness.

When older people become senile (衰老的) or too weak and ill to care for themselves, they create grave problems for their families. In the past and in some traditional cultures, they would be cared for at home until they died. Today, with most members of a household working or in school, there is often no one at home who can care for a sick or weak person. To meet this need, a great many nursing homes and convalescent (療養的) hospitals have been built. These are often profit making organizations, although some are sponsored by religious and other nonprofit groups. While a few of these institutions are good, most of them are simply “dumping (倒垃圾的) grounds” for the dying in which “care” is given by poorly paid, overworked, and under skilled personnel.

1. The author believes that the population explosion results from _______.

A. an increase in birthrates          B. the industrial development

C. a decrease in death rates           D. human beings’ cultural advances

2. It can be inferred from the passage that in hunting and gathering cultures _______.

A. it was a moral responsibility for the families to keep alive the aged people who could    not work

B. the survival of infants was less important than that of their parents in times of starvation

C. old people were given the task of imparting the cultural wisdom of the tribe to new generations

D. death was celebrated as a time of rejoicing for an individual freed of the hardships of life

3. According to the passage, which of the following statements about the old people in the  United States is true?

A. Many of them live on social security money which is hardly enough.

B. Minority of them remain in a state of near poverty after their retirement.

C. When they reach a certain age, compulsory retirement is necessary and beneficial.

D. With the growing inflation, they must suffer more from unbearable burdens than ever.

4. The phrase “this need” in paragraph 3 refers to ________.

A. prolonging the dying old people’s lives

B. reducing the problems caused by the retired people

C. making profits through caring for the sick or weak people

D. taking care of the sick or weak people

5. Which of the following best describes the author’s attitude toward most of the nursing homes and convalescent hospitals?

A. Sympathetic.      B. Approving.         C. Optimistic.      D. Critical.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

June 26, 2000—the Human Genome(基因組) Project, a great $3 billion, 15-year task aimed at drawing the genetic(遺傳的)map of humans, is now more than 90 percent completed. The scientific and medical communities are very excited about the chances genetic research provides for getting rid of diseases and prolonging(延長) human life. But those communities and policy makers are also careful about the scientific door they are opening as the project uncovers the mysteries of life.

       For the last few years, the genetic advances in the developing field of biotechnology have provides material for all kinds of work, but the developments of modern science in unlocking the secrets of the human genetic code have opened a world of possibilities for human health, as well as for the popular imagination.

       While European and Japanese researchers are making rapid progress in decoding(解碼) human DNA, the leading organization for genetic research is in the United States, which began in 1990, is “unlocking the code” of the human body to learn how to defeat fatal diseases. Already, the Human Genome Project has become widely known and praised for finding the genes connected with as yet(迄今) terrible diseases, and making progress toward separating the genes that show a sign of breast cancer or AIDS.

       Once these genes are found and studied, researchers can develop new ways to attack infections, and genetic diseases. Medical companies are very interested in mapping the human genome, as they expect to develop a lot of new drugs for these illnesses.

Why did the scientists work hard at mapping the Human Genome?

A. Because the Human Genome can destroy many illnesses.

       B. Because the Human Genome's completion can help them get rid of many diseases.

       C. Because they wanted to be better known than others.

       D. Because the Human Genome can provide a lot of chances of work.

Which country studied the genes most rapidly in the world?

       A. Japan. B. Germany.       C. The United States.      D. China.

Which of the following is NOT true?

       A. If the genes can be found, scientists can study many new ways to cure illnesses.

       B. The scientists have made great progress in connecting the genes with the cancers.

       C. Many medical companies show great interest in drawing the human genome map.

       D. The United States began the Genes Study early in the 19th century.

The main idea of this article is about_________.

       A. unlocking genetic code         B. the genes' discovery

       C. the great human genome            D. the genes and the scientist

查看答案和解析>>

科目:高中英語 來源:2012-2013學年廣東省始興縣風度中學高二上學期期末考試英語試卷(帶解析) 題型:閱讀理解

An experimental treatment that causes AIDS patients to develop a dangerously high fever has shown promise as a way of prolonging and improving the patients’ life.Called the Biologic-HT System, the new treatment lets doctors extract the blood of a patient and heat it before circulating it back into the body. The heated blood causes the patient’s body temperature to rise above 42 degrees Celsius. In people with AIDS, that increase in temperature kills some heat-sensitive HIV, the virus, most doctors say, causes AIDS.
Heating the blood of AIDS patients has been tried before, say doctors. But during previous attempts, the treatment induced deadly chemical changes in the blood. The Biologic-HT System prevents those changes from happening, allowing the heat to kill viruses with few ill side effects.
The new heat treatment cannot be considered a cure for Aids, says president of the company that makes the system. He says the treatment doesn’t kill all traces of the virus. However, it kills enough virus particles to give a patient’s immune system a reprieve in its deadly duel with HIV.
Tests of the Biologic-HT treatment began on 36 patients earlier this year. The treatment takes about four hours, and the patient normally feels well enough to leave the hospital or clinic the following morning.
So far, the patients who have had the treatment say they feel better and have developed no new opportunistic infections—disease that strike people with damaged immune systems. The patients also have experienced about a 50 percent increase in the number of T cells in their bodies. T cells are key disease-fighting cells of the immune system and the main target of HIV.
【小題1】This passage is mainly concerned with ____________.

A. a way for treating AIDS
B. a heat-sensitive virus
C. the immune system of the human body
D. the function of high temperature
【小題2】The blood of the patient___________.
A. is heated with a single injection
B. is heated by being circulated at a higher rate
C. is taken out from the body and then circulated through a heating system.
D.is taken out from the body, heated outside and then put back into the body.
【小題3】The previous attempts to use high temperature for treating AIDS failed because they_________.
A.caused chemical changes
B.could not kill HIV effectively
C.resulted in deaths
D.killed both HIV and healthy cells
【小題4】According to the passage, the new treatment___________.
A.can kill all the HIV viruses
B.cannot eliminate the viruses completely
C. can double the number of disease-fighting cells
D.can reconstruct the patient’s immune system.
【小題5】The result of the experiment seems to be ___________.
A.disappointingB.incompleteC.successfulD.surprising

查看答案和解析>>

科目:高中英語 來源:2013屆上海市虹口區高考一模英語試卷(帶解析) 題型:閱讀理解

Prolonging human life has increased the size of the human population. Many people alive today would have died of childhood diseases if they had been born 100 years ago. Because more people live longer, there are more people around at any given time. In fact, it is a decrease in death rates, not an increase in birthrates, that has led to the population explosion.
Prolonging human life has also increased the dependency load. In all societies, people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures, old people who could not keep up might be left behind to die. In times of famine (饑荒), infants might be allowed to die because they could not survive if their parents starved, where as if the parents survived they could have another child. In most contemporary societies, people feel a moral obligation (責任) to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work; we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement, somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illnesses than young or middle-aged people; unless they have wealth or private or government insurance, they must often “go on welfare” if they have a serious illness.
When older people become senile (衰老的) or too weak and ill to care for themselves, they create grave problems for their families. In the past and in some traditional cultures, they would be cared for at home until they died. Today, with most members of a household working or in school, there is often no one at home who can care for a sick or weak person. To meet this need, a great many nursing homes and convalescent (療養的) hospitals have been built. These are often profit making organizations, although some are sponsored by religious and other nonprofit groups. While a few of these institutions are good, most of them are simply “dumping (倒垃圾的) grounds” for the dying in which “care” is given by poorly paid, overworked, and under skilled personnel (員工).
【小題1】The author believes that the increased size of the human population results from _______.

A.an increase in birthrates B.the industrial development
C.a decrease in death ratesD.childhood diseases
【小題2】It can be inferred from the passage that in hunting and gathering cultures _______.
A.it was a moral responsibility for the families to keep alive the aged people who could not work
B.the survival of infants was less important than that of their parents in times of starvation
C.old people were given the task of imparting (傳授) the cultural wisdom of the tribe to new generations
D.death was celebrated as a time of rejoicing for an individual freed of (免除) the hardships of life
【小題3】The phrase “this need” in the last paragraph refers to ________.
A.prolonging the dying old people’s lives
B.reducing the problems caused by the retired people
C.making profits through caring for the sick or weak people
D.taking care of the sick or weak people
【小題4】According to the passage, which of the following statements about the old people in the United States is true?
A.Many of them live on social security money which is hardly enough.
B.Minority of them remain in a state of near poverty after their retirement.
C.Many nursing homes are sponsored by religious and nonprofit groups.
D.Older people have wealth or private insurance if they have a serious illness.

查看答案和解析>>

科目:高中英語 來源:2010-2011學年浙江省杭州市高三上學期開學考試英語卷 題型:閱讀理解

June 26, 2000 — the Human Genome(基因組) Project, a great $3 billion, 15-year task aimed at drawing the genetic(遺傳的) map of humans, is now more than 90 percent completed. The scientific and medical communities are very excited about the chances genetic research provides for getting rid of diseases and prolonging(延長) human life. But those communities and policy makers also are careful about the scientific door they are opening as the project uncovers the mysteries of life.

For the last few years, the genetic advances in the developing field of biotechnologyhave provides material for all kinds of work, but the developments of modern science in unlocking the secrets of the human genetic codehave opened a world of possibilities for human health, as well as for the popular imagination.

While European and Japanese researchers are making rapid progress in decoding(解碼) human DNA, the leading organization for genetic research is in the United States, which began in 1990, is “unlocking the code” of the human body to learn how to defeat fatal(致命的)diseases. Already, the Human Genome Project has become widely known and praised for finding the genes connected with terrible diseases as yet(迄今), and making progress toward separating the genes that show a sign of breast cancer or AIDS.

Once these genes are found and studied, researchers can develop new ways to attack infections, and genetic diseases. Medical companies are very interested in mapping the human genome, as they expect to develop a lot of new drugs for these illnesses.

1. Why did the scientists work hard at mapping the human genome?

A. Because the human genome can destroy many illnesses.

B. Because the human genome's completion can help them get rid of many diseases.

C. Because they wanted to be better known than others.

D. Because the human genome can provide a lot of chances of work.

2.Which country studied the genes most rapidly in the world?

A. Japan.           B. Germany.              C. The United States.       D. China.

3. Which of the following is NOT true?

A. If the genes can be found, scientists can study many new ways to cure illnesses.

B. The scientists have made great progress in connecting the genes with the cancers.

C. Many medical companies show great interest in drawing the human genome map.

D. The United States began the Genes Study early in the 19th century.

4.The author suggests that the Human Genome Project can cause _______.

A. the policy makers to feel very worried and careful

B. the scientists to work harder

C. many people to find work easily

D. a lot of companies to produce many new drugs

5. The main idea of this article is about _______.

A. unlocking genetic code                                            B. the genes' discovery

C. the great human genome                                       D. the genes and the scientists

 

查看答案和解析>>

同步練習冊答案
精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区
欧美美女一区二区三区| 欧美一卡2卡3卡4卡| 亚洲午夜在线电影| 欧美午夜免费电影| 视频一区欧美精品| 精品国产乱码久久久久久1区2区| 国产精品一级在线| 中文字幕亚洲综合久久菠萝蜜| 一本久久a久久免费精品不卡| 亚洲成人av在线电影| 欧美一区二区三区四区在线观看| 国产在线精品免费av| 国产精品久久久久永久免费观看| 日本道色综合久久| 日韩中文字幕av电影| 欧美精品一区二区三区很污很色的 | 另类欧美日韩国产在线| 国产欧美日韩视频一区二区| 色综合天天性综合| 色偷偷成人一区二区三区91| 午夜欧美在线一二页| 26uuu久久天堂性欧美| av电影一区二区| 丝袜亚洲另类丝袜在线| 久久免费电影网| 一本色道综合亚洲| 美女视频黄 久久| 日韩一区日韩二区| 6080国产精品一区二区| 国产成人在线看| 亚洲第一二三四区| 久久久久99精品国产片| 日本高清成人免费播放| 久久成人av少妇免费| 亚洲人吸女人奶水| 欧美成人aa大片| 日本二三区不卡| 国产一区二区影院| 亚洲一区在线观看免费 | 91美女片黄在线观看| 蜜臀av一区二区在线免费观看| 日本一区二区三区国色天香| 欧美日韩在线免费视频| 国产精品456| 午夜电影一区二区| 中文字幕中文字幕一区二区 | 91精品国产美女浴室洗澡无遮挡| 成人黄色软件下载| 蜜臀av国产精品久久久久 | 首页欧美精品中文字幕| 国产精品视频第一区| 678五月天丁香亚洲综合网| 成人美女在线观看| 另类小说综合欧美亚洲| 一区二区三区日韩| 欧美激情一区二区在线| 91精品国产色综合久久ai换脸| 99视频超级精品| 国产在线不卡视频| 首页亚洲欧美制服丝腿| 亚洲色欲色欲www在线观看| 久久综合九色综合欧美就去吻| 欧美日韩国产区一| 99re免费视频精品全部| 国产一区二区三区av电影 | 国产成人福利片| 美美哒免费高清在线观看视频一区二区| 亚洲欧美日韩一区二区三区在线观看 | 91精品欧美一区二区三区综合在 | 免费人成在线不卡| 亚洲最大色网站| 自拍偷拍亚洲激情| 国产日产欧美精品一区二区三区| 欧美一区二区在线不卡| 在线观看免费亚洲| 99re6这里只有精品视频在线观看 99re8在线精品视频免费播放 | 91官网在线免费观看| av中文字幕一区| 国产成人无遮挡在线视频| 麻豆精品视频在线| 日韩精品一级中文字幕精品视频免费观看| 亚洲色图一区二区三区| 国产精品无遮挡| 久久精品水蜜桃av综合天堂| 欧美不卡在线视频| 欧美一区二区三区在线视频| 欧美日韩一区 二区 三区 久久精品| 97se亚洲国产综合自在线| 久久综合色综合88| 这里只有精品电影| 欧美猛男gaygay网站| 欧美视频在线观看一区二区| 91久久精品一区二区三| 91日韩在线专区| 91在线观看免费视频| av成人免费在线| 99热精品一区二区| 不卡的av网站| 9人人澡人人爽人人精品| 成人app在线| av成人免费在线| 91啪在线观看| 色婷婷精品大在线视频| 91蝌蚪porny| 日本精品一级二级| 91成人国产精品| 欧美三级视频在线| 欧美日韩精品免费观看视频| 在线播放欧美女士性生活| 欧美高清性hdvideosex| 91精品欧美福利在线观看| 欧美一区二区美女| 日韩欧美的一区二区| 欧美tickling网站挠脚心| 欧美精品一区二区蜜臀亚洲| 久久久久97国产精华液好用吗| 久久久不卡网国产精品一区| 国产欧美久久久精品影院| 中文一区二区完整视频在线观看| 国产精品久久久久久久久搜平片 | 国产精品成人一区二区三区夜夜夜| 国产精品女主播av| 亚洲欧美国产77777| 亚洲一区二区三区四区在线免费观看| 亚洲电影中文字幕在线观看| 日韩高清在线电影| 加勒比av一区二区| 国产a精品视频| 色综合天天天天做夜夜夜夜做| 欧美影院一区二区三区| 欧美高清性hdvideosex| 日韩精品中文字幕一区| 久久精品亚洲麻豆av一区二区| 国产精品久久久一区麻豆最新章节| 亚洲日本电影在线| 亚洲va天堂va国产va久| 久久精品国产精品亚洲综合| 国产馆精品极品| 色婷婷久久99综合精品jk白丝| 欧美精品1区2区3区| 久久你懂得1024| 亚洲色图19p| 五月天中文字幕一区二区| 精品一区二区三区久久| 岛国精品在线播放| 在线观看国产精品网站| 欧美大黄免费观看| 国产精品家庭影院| 亚洲成av人片在www色猫咪| 精品国产成人系列| 中文字幕乱码亚洲精品一区| 一区二区高清在线| 久久国产免费看| 97超碰欧美中文字幕| 56国语精品自产拍在线观看| 国产午夜一区二区三区| 一区二区三区在线视频免费 | 成人伦理片在线| 欧美日韩国产123区| 久久欧美中文字幕| 一区二区视频免费在线观看| 美国三级日本三级久久99| 成人app在线观看| 91精品国产一区二区三区蜜臀 | 国产日韩欧美精品电影三级在线| 一级日本不卡的影视| 精久久久久久久久久久| 91在线丨porny丨国产| 日韩一区二区三区视频| 国产精品国产三级国产有无不卡| 丝袜诱惑制服诱惑色一区在线观看 | 精品国产人成亚洲区| 伊人婷婷欧美激情| 国精产品一区一区三区mba桃花| 色网站国产精品| 久久久久99精品国产片| 亚洲成av人片在www色猫咪| 国产成人精品一区二区三区四区| 精品视频在线看| 国产精品嫩草影院com| 青椒成人免费视频| 色婷婷久久综合| 国产欧美日韩在线观看| 日韩av午夜在线观看| 91污在线观看| 久久精品一级爱片| 日本vs亚洲vs韩国一区三区 | 欧美一卡二卡在线观看| 亚洲欧美日韩国产中文在线| 国产一区二区三区日韩| 欧美日韩一级二级三级| 国产精品精品国产色婷婷| 精品影视av免费| 欧美日韩国产大片| 亚洲三级在线免费| 国产成人在线视频网站| 日韩欧美资源站| 亚洲成人黄色小说| 一本大道久久a久久精二百| 国产欧美视频在线观看|