欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

4、There are some serious threats to the children’s health. The largest killer of children under age five is pneumonia(肺炎). This lung infection kills about two million children each year, mostly in developing countries.

In developed countries, most pneumonia cases are caused by viruses. But in the developing world, about sixty percent are caused by bacteria. These cases can be treated with antibiotic drugs(抗生素).

The World Health Organization currently says children with severe pneumonia should be admitted to a hospital and given injectable antibiotics. But many poor families do not have the money for a hospital or live too far away.

Now, new research could lead to a change in that advice. A study in Pakistan found that children with severe pneumonia can recover fully at home taking antibiotics by mouth. The study is in the Lancet medical journal.

The research involved two thousand children between three and five years old. Half received intravenous(靜脈) antibiotics during a forty-eight-hour hospital stay. The others were sent home to take antibiotics for five days.

The treatment failed in eighty-seven children in the hospitalized group and seventy-seven in the home group. These children were then given another therapy.

During the study, five children died, four of them in the hospital group.

W.H.O. medical officer Shamim Qazi says the new findings will help children, families and hospitals. Children may get other infections in a hospital. Many hospitals are already overcrowded. And treatment at home would be less costly.

The study confirmed the findings of three other studies in Africa, Asia, Europe and Latin America. These showed that in hospitals, oral antibiotics were just as effective as injectable antibiotics in treating severe pneumonia in children.

A few cases are so severe they will still need hospital care. But Doctor Qazi says the W.H.O will be updating its guidelines this year with the new evidence. The W.H.O, of course, will be devoted to studying other killers to children all the time as well.

1．Why do some children cannot be sent to hospital and given inject able antibiotics?

  A．Because parents don’t want to spend much money on them.

  B．Because their disease is not serious enough.

  C．Because they live far away from hospitals.

  D．Because they don’t want to receive intravenous antibiotics.

2．Of all the children who received intravenous antibiotics in the research,         children died.

      A．0.4%            B．0.2%             C．0.25%           D．0.5%

3．The writer mainly wants to tell us        .

       A．home treatments work well on children with severs pneumonia

  B．the largest killer of children under age five is pneumonia

  C．what the advantage of treating pneumonia staying at home is

  D．how the research about pneumonia was carried out

4．Suppose the passage hasn’t ended, what might be most possibly talked about in the following part?

       A．The detailed information about the W.H.O’s updating its guidelines.

       B．The way to solve the problem that some hospitals are overcrowded.

  C．Another threat to children’s health, which W.H.O will deal with.

       D．The findings of three other studies in Africa, Asia, Europe and Latin America

3、Space is dangerous place, not only because of meteors(流星) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.

    Radiation is the greatest known danger to explorers in space. The unit of radiation is called “rem”. Scientists have recon to think that a man can put up with far more radiation than 0.1 ream without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage--a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed(畸形的) children or even grandchildren.

Missions of the Apollo flights have had to cross belts of high amount of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, hut no rally effective ones have been found so far.

1．According to the first paragraph, the atmosphere is essential to man because      .

  A．it protects him against the harmful rays from space

  B．it provides sufficient light for plant growth

  C．it supplies the heat necessary for human survival

  D．it screens off the falling meteors

2．Which statement is TRUE according to the passage?

  A．Exposure to even tiny amounts of radiation is fatal.

  B．The effect of exposure to radiation is slow in coming.

  C．Radiation is completely avoidable in space exploration.

  D．Astronauts in spacesuits needn’t worry about radiation damage.

3．The harm radiation has done to the Apollo crew members       .

  A．is insignificant                                     B．seems overestimated

  C．is enormous                                        D．remains unknown

4．It can be inferred from the passage that       .

  A．the Apollo mission was very successful

  B．protection against space radiation is no easy job

  C．a(chǎn)stronauts will have deformed children or grandchildren

  D．radiation is not a threat to well-protected space explorers

5．The best title for this passage would be       .

  A．The Atmosphere and Our Environment

  B．Research on Radiation

  C．Effects of Space Radiation

       D．Importance of Protection Against Radiation

2、以下標有題號的每一行均有一個錯誤，請找出，并按下列情況改正：

此行多一個詞：把多余的詞用斜線（\）劃掉，在該行右邊橫線上寫出該詞，并也用斜線劃掉。

此行缺一個詞：在缺詞處加一個漏詞符號（∧），在該行右邊橫線上寫出該加的詞。

此行錯一個詞：在錯的詞下劃一橫線，在該行右邊橫線上寫出改正后的詞。

注意：請在答題卡上作答。

In the morning of November 18^th, 1755, an earthquake             1．          

shook Boston. John, a professor at Harvard College felt a quake          2．          

and woke up. “I rose and found to be fifteen minutes past               3．          

four.” He hurried to downstairs to the clock. It had stopped              4．          

three minutes ago. Except for stopping the clock, the quake              5．          

has only thrown a key from the mantel(壁爐架) to the floor.             6．          

The clock had stopped because I had put some long                    7．          

glass tube he was using for an experiment into the case                 8．          

for safekeeping. The quake had been knocked the tubes over and         9．          

blocked the pendulum(鐘擺). So John had the exactly                  10．          

time of the earthquake.

1、假設(shè)你是李華，你的英國朋友Tom聽說你校學生正在開展研究性學習，于是來信詢問有關(guān)情況。請你根據(jù)下表提供的信息，寫一封回信，談一談開展研究性學習前后，你的學習情況的變化。并發(fā)表自己的觀點。

注意：詞數(shù)100左右。

參考詞匯：研究性學習exploring study

33、找出與所給單詞劃線部分讀音相同的選項。語音知識

1champion       A. opinion      B. region       C. occasion      D. conclusion

2. mainly        A. mountainous  B. certain       C. captain       D. sail

3. wisdom       A. sunset        B. insect       C. possession     D. promise

4. volcano       A. location      B. dishonest     C. method       D. protection

5. scholarship    A. champion     B. dutchman    C. technique      D. church

32、-- I was wondering if we could go skiing on the weekend.

-- _______good.
A. Sound        B. Sounded     C. Sounding      D. Sounds

31、I had travelled only two hours one day _____ the winds increased so much that I had to put my tent up ____ the winds became too strong.

A. when; before    B. then; but      C. while; because    D. but; before