C Researchers in the United States are beginning a study to see if a weaker version of an existing vaccine can protect people against the disease smallpox. Smallpox is caused by the variola virus. It spreads from one person to another when an infected person sneezes or coughs. People who become infected show signs of the disease within two weeks. They develop high body temperature, head and back aches and large raised area on the skin called sores. The disease can damage the brain and other body organs. Smallpox kills thirty percent of the people who get it . There is no treatment. A vaccine medicine that prevents smallpox ended the threat of the disease around the world in 1977. Now, American officials fear that terrorists may have small amounts of the virus. The National Institute of Allergy and Infection Diseases is supporting a study to see if a weakened smallpox vaccine can be effective against the disease. Sharon Frey(FRI) is the leading researcher of the study. She says the United States has no more than 20 million unit of smallpox vaccine. That is not enough to protect 285 million Americans from the virus. Scientists say making the vaccine weaker is a quickly way to expand the amount of vaccine that already exists. Doctor Frey and her team will test a weaker vaccine on more than 600 people at four medical centers in the United States. One group of people will get the full-strength smallpox vaccine. The second group will get the vaccine that is one-fifth as strong as the full-strength vaccine. The researchers will examine the people to see how many develop a reaction that means the vaccine is protecting them from smallpox. This reaction is a small raised area on the arm where the vaccine is given. Doctor Frey expects to know the results in two or three months. She says that any use of the weakened vaccine will be a temporary measure until new supplies of the smallpox vaccine are ready. That will take about one to two years. Researchers in the United States are beginning a study to see if a weaker version of an existing vaccine can protect people against the disease smallpox. 69. What is the passage mainly talking about? A. The after shock of 9.11 terrorist attacks. B. The study of weaker smallpox vaccine C. How to control smallpox D. The weaker smallpox vaccine will come into use in two or three months. 70. Which of the following is NOT the symptom when infected with the disease smallpox? A. Coughs or sneezes B. High body temperature C. Head and back aches C. Large raised areas on the skin called sores 71. Which of the following is the reason why the National Institute of Allergy and Infectious Disease try to use the weakened smallpox vaccine. A. The existing smallpox vaccine costs too much . B. The existing smallpox vaccine has been no longer quite effective. C. They want to reduce the side effects that the existing smallpox brings to the infected people. D. American officials fear that terrorists may have small amounts of the virus and they use the weakened smallpox vaccine as a temporary measure until new supplies of the smallpox vaccine are ready. 查看更多

 

题目列表(包括答案和解析)

Many families in the United States observe National Grandparents Day on the first Sunday of September after America’s Labor Day. People often  36   their parents on this day.

    Many people  37  the day through a lot of activities such as gift-giving and card giving. Some children  38  their grandparents to school for a day where they take special lessons. Some students  39  storytelling activities that relate to their grandparents, as well as picture or music competitions where children use a story about their grandparents in their  40 .

    About four million greeting cards are  41  within the United States each year on National Grandparents Day. This day is also a   42  for people to appreciate and express their  43  to their grandparents through  44  actions such as making a phone call and inviting their grandparents for dinner. People living in nursing homes may  45  a visit form their grandchildren.

    National Grandparents Day has more than one  46 . Some people consider it to have been first proposed by Michael Goldgar in the 1970s after he visited his aunt in an Atlanta nursing home. Others  47  Marian Lucille Herndon McQuade to have been the main  48  of National Grandparents Day. Throughout the 1970s McQuade worked hard to  49  people about the important contributions senior citizens made and the contributions that they would be willing to make  50  asked. She also urged(强烈要求) people to take good care of a grandparent, not for one day a year and not for material giving,  51  for a lifetime of experience.

    National Grandparents Day was  52  signed into law by President Jimmy Carter in 1978. Marian McQuade received a phone call from the White House to  53  her of this event. Many people believe that National Grandparents Day was inspired by her  54 . A presidential proclamation(声明) on September 6, 1979 made this day  55 .

 

1.A. support    B. praise   C. reward       D. honor

2.A. begin      B. hold     C. celebrate        D. remember

3.A. invite     B. expose   C. force            D. remind

4.A. make the use of    B. take part in     C. take up  D. build up

5.A. diaries    B. plans        C. reports      D. artworks

6.A. signed B. sent     C. carried      D. brought

7.A. chance B. luck     C. condition        D. possibility

8.A. satisfaction   B. interest C. love     D. agreement

9. A. quick     B. careful  C. difficult        D. kind

10.A. create        B. receive  C. present      D. realize

11.A. cause     B. origin   C. background   D. beginning

12.A make       B. expect   C. consider     D. allow

13.A. driver        B. owner    C. researcher   D. inventor

14.A. warn      B. educate  C. interview        D. ask

15. A. if           B. though   C. so           D. until

16.A. since     B. but      C. even         D. unless

17.A. finally   B. recently C. nearly       D. generally

18.A. rid       B. persuade C. clear            D. inform

19.A. energy    B. goals        C. bravery      D. efforts

20.A. reliable  B. changeable   C. official D. beautiful

 

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阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。 

Here are some of the most common reasons why kids hate school—and strategies(对策) to put them back on the road to success.

One fear that keeps children from enjoying school is separation    1. It most frequently occurs during times of family stress or    2a child is about to enter a new school.   3, parents can feed a child’s anxieties by the way they    4. With younger kids, watch how you say    5those first few days of school. A firm “Have a great day, and I’ll    6you up at 2:30!” is more confidence-inspiring than “Don’t worry, I can be there in ten    7if you need me.”

You can help your child    8fearful situations—from speaking up in class to taking tests—by rehearsing(预演)at home. Teach your child to    9thoughts such as “I’m going to give up” with “I can handle this.”

Without any    10, some kids dislike school .This may be the    11if your child is always alone, pretends    12to avoid class outings or give away treasured possessions in an attempt to be    13.

Often loneliness problems can be solved. A child may need to learn how to    14others in the eye when he speaks, or how to talk    15a whisper—or below a yell. You might teach a young child a few “friendship    16”, such as “My name’s Tom. What’s yours? Do you want to play games?” 

“A lot of kids who are very lonely have never been told anything    17about themselves,” says Miami    18Matty Rodriguez-Walling. “If a lonely kid is   19some area—computers, for example—I’ll often have other students work with him. That does    20for self-respect and helps the lonely child make friends.”

1.A. anxiety                B. excitement           C. anger                D. relief

2.A. while              B. since                C. when             D. as

3.A. Unfortunately      B. Happily          C. Luckily          D. Simply

4.A. teach              B. smile                C. learn                D. respond

5.A. hello              B. sorry                C. good-bye         D. thanks

6.A. call               B. pick             C. bring                D. put

7.A. hours              B. days             C. minutes          D. seconds

8.A. watch              B. control              C. express          D. handle

9.A. connect                B. fill                 C. supply           D. replace

10.A. friends               B. classmates           C. teachers             D. parents

11.A. condition         B. case             C. example          D. matter

12.A. violence          B. sadness          C. illness              D. independence

13.A. taught                B. refused          C. hated                D. liked

14.A. watch             B. look                 C. examine          D. observe

15.A. at                    B. above                C. to               D. over

16.A. openers               B. conclusions          C. thoughts         D. opinions

17.A. good              B. interesting          C. strange         D. magic

18.A. doctor                B. scientist            C. researcher           D. teacher

19.A. poor at               B. anxious about        C. skilled in           D. proud of 

20.A. less                  B. a lot                C. more                 D. a little

 

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第二节:完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

Here are some of the most common reasons why kids hate school—and strategies(对策) to put them back on the road to success.

One fear that keeps children from enjoying school is separation    36    . It most frequently occurs during times of family stress or    37    a child is about to enter a new school.   38   , parents can feed a child’s anxieties by the way they    39  . With younger kids, watch how you say    40    those first few days of school. A firm “Have a great day, and I’ll    41    you up at 2:30!” is more confidence-inspiring than “Don’t worry, I can be there in ten    42    if you need me.”

You can help your child    43    fearful situations—from speaking up in class to taking tests—by rehearsing(预演)at home. Teach your child to    44    thoughts such as “I’m going to give up” with “I can handle this.”

Without any    45   , some kids dislike school .This may be the    46    if your child is always alone, pretends    47    to avoid class outings or give away treasured possessions in an attempt to be    48   .

Often loneliness problems can be solved. A child may need to learn how to    49    others in the eye when he speaks, or how to talk    50    a whisper—or below a yell. You might teach a young child a few “friendship    51   ”, such as “My name’s Tom. What’s yours? Do you want to play games?”

“A lot of kids who are very lonely have never been told anything    52    about themselves,” says Miami    53   Matty Rodriguez-Walling. “If a lonely kid is   54    some area—computers, for example—I’ll often have other students work with him. That does    55   for self-respect and helps the lonely child make friends.”

36. A. anxiety                      B. excitement                C. anger                       D. relief

37. A. while                         B. since                    C. when                       D. as

38. A. Unfortunately             B. Happily                    C. Luckily                    D. Simply

39. A. teach                         B. smile                       C. learn                       D. respond

40. A. hello                         B. sorry                        C. good-bye                  D. thanks

41. A. call                           B. pick                         C. bring                       D. put

42. A. hours                         B. days                         C. minutes                    D. seconds

43. A. watch                        B. control                            C. express                    D. handle

44. A. connect                      B. fill                          C. supply                     D. replace

45. A. friends                       B. classmates                C. teachers                   D. parents

46. A. condition                   B. case                         C. example                   D. matter

47. A. violence                     B. sadness                     C. illness                      D. independence

48. A. taught                        B. refused                     C. hated                       D. liked

49. A. watch                        B. look                  C. examine                   D. observe

50. A. at                                 B. above                       C. to                           D. over

51. A. openers                   B. conclusions               C. thoughts                D. opinions

52. A. good                         B. interesting                C. strange                   D. magic

53. A. doctor                       B. scientist                    C. researcher                D. teacher

54. A. poor at                      B. anxious about           C. skilled in                  D. proud of 

55. A. less                  B. a lot                  C. more             D. a little

查看答案和解析>>

第二节:完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

Here are some of the most common reasons why kids hate school—and strategies(对策) to put them back on the road to success.

One fear that keeps children from enjoying school is separation    36    . It most frequently occurs during times of family stress or    37    a child is about to enter a new school.   38   , parents can feed a child’s anxieties by the way they    39  . With younger kids, watch how you say    40    those first few days of school. A firm “Have a great day, and I’ll    41    you up at 2:30!” is more confidence-inspiring than “Don’t worry, I can be there in ten    42    if you need me.”

You can help your child    43    fearful situations—from speaking up in class to taking tests—by rehearsing(预演)at home. Teach your child to    44    thoughts such as “I’m going to give up” with “I can handle this.”

Without any    45   , some kids dislike school .This may be the    46    if your child is always alone, pretends    47    to avoid class outings or give away treasured possessions in an attempt to be    48   .

Often loneliness problems can be solved. A child may need to learn how to    49    others in the eye when he speaks, or how to talk    50    a whisper—or below a yell. You might teach a young child a few “friendship    51   ”, such as “My name’s Tom. What’s yours? Do you want to play games?”

“A lot of kids who are very lonely have never been told anything    52    about themselves,” says Miami    53   Matty Rodriguez-Walling. “If a lonely kid is   54    some area—computers, for example—I’ll often have other students work with him. That does    55   for self-respect and helps the lonely child make friends.”

36. A. anxiety                      B. excitement                C. anger                       D. relief

37. A. while                         B. since                    C. when                       D. as

38. A. Unfortunately             B. Happily                    C. Luckily                    D. Simply

39. A. teach                         B. smile                       C. learn                       D. respond

40. A. hello                         B. sorry                        C. good-bye                  D. thanks

41. A. call                           B. pick                         C. bring                       D. put

42. A. hours                         B. days                         C. minutes                    D. seconds

43. A. watch                        B. control                            C. express                    D. handle

44. A. connect                      B. fill                          C. supply                     D. replace

45. A. friends                       B. classmates                C. teachers                   D. parents

46. A. condition                   B. case                         C. example                   D. matter

47. A. violence                     B. sadness                     C. illness                      D. independence

48. A. taught                        B. refused                     C. hated                       D. liked

49. A. watch                        B. look                  C. examine                   D. observe

50. A. at                                 B. above                       C. to                           D. over

51. A. openers                   B. conclusions               C. thoughts                D. opinions

52. A. good                         B. interesting                C. strange                   D. magic

53. A. doctor                       B. scientist                    C. researcher                D. teacher

54. A. poor at                      B. anxious about           C. skilled in                  D. proud of 

55. A. less                   B. a lot                  C. more             D. a little

查看答案和解析>>

High school dropouts(辍学者)earn an average of $ 9,000 less per year than graduates. Now a new study dispels a common belief why they quit. It’s much more basic than flunking out(不及格).

Society tends to think of high school dropouts as kids who just can’t cut it. They are lazy,and perhaps not two bright.So researchers were surprised when they asked more than 450 kids who quit school about why they left.

“The vast majority actually had passing grades and they were confident that they could have graduated from high school.” John Bridgeland, the executive researcher said. About 1 million teens leave school each year. Only about half of African-American and Hispanic(美籍西班牙的)students will receive a diploma(证书),and actually all dropouts come to regret their decision. So, if failing grades don’t explain why these kids quit, what does? Again,John Bridgeland:"The most dependable finding was that they were bored.” “They found classes uninteresting; they weren’t inspired or motivated. They didn’t see any direct connection between what they were learning in the classroom to their own lives, or to their career aspirations.”

The study found that most teens who do drop out wait until they turn sixteen, which happens to be the age at which most states allow students to quit. In the US,only one state,New Mexico,has a law requiring teenagers to stay in high school until they graduate. Only four states: California, Tennessee, Texas and Utah, plus the District of Columbia, require school attendance until age 18, no exceptions, another researcher,says raising the compulsory attendance age may be one way to keep more kids in school.

“As these dropouts look back,they realize they’ve made a mistake. And anything that sort of gives these people an extra push to stick it out and it through to the end, is probably helpful measure.”

New Hampshire may be the next state to raise its school attendance age to 18. But critics say that forcing the students unwilling to continue their studies to stay in school misses the point-the need for reform. It's been called for to reinvent high school education to make it more challenging and relevant, and to ensure that kids who do stick it out receive a diploma that actually means something.  

68. Most high school students drop out of school because          .

A. they have failing grades     

B. they take no interest in classes

C. they are discriminated against    

D. they are lazy and not intelligent

69. The underlined words “stick it out” probably means“         ”.

A. complete schooling                 B. solve the problem

C. love having classes                         D. believe in themselves

70. In the last paragraph, the writer is trying to          .

A. analyze the reason why students quit school

B. suggest raising the compulsory attendance age

C. raise awareness of reforming high school education

D. wish to make laws to guarantee no education

71. From the passage,we can infer the following EXCEPT that          .

A. the grades of most dropouts at school were acceptable

B. about 500, 000 high school dropouts are black and Spanish

C. classes don't appeal to dropouts

D. on average dropouts cannot get good jobs

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