( ) H1N1 is said ______ one of the biggest challenge to the people in the world today.
A. that it is B. to had been C. that it has been D. to have been
| 年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
| 高一 | 高一免費(fèi)課程推薦！ | 初一 | 初一免費(fèi)課程推薦！ |
| 高二 | 高二免費(fèi)課程推薦！ | 初二 | 初二免費(fèi)課程推薦！ |
| 高三 | 高三免費(fèi)課程推薦！ | 初三 | 初三免費(fèi)課程推薦！ |
科目：高中英語 來源： 題型：閱讀理解
There is a joke among flu researchers: “If you've seen one flu season, you've seen one flu season.” The joke is about the unpredictable nature of the flu virus. Every year it looks different, and every strain (類型) follows its own pattern — it's the reason why new strains like H1N1 are extremely difficult to predict.
Dr. Michael Osterholm is a former adviser to the U.S. Department of Health and Human Services. “I know less about influenza today than I did 10 years ago,” he says in a joking way. “Every stone we've turned over, we get more questions.”
The flu rectums every season and the world experiences terrible pandemics (全國(guó)或全世界范圍流行的疾病), but researchers still do not understand why some strains infect people and others do not; they are not entirely sure about how the flu is transmitted; nor do they understand why some patients become seriously ill while others develop mild symptoms (癥狀). As a result, when a new strain shows up — like H1N1 — they often have little information to fall back on, and the lessons of previous pandemics are only somewhat helpful. While researchers are still putting together a complete picture of H1N1, for example, its most striking difference with the seasonal flu is that the elder1y are not the most vulnerable (易受攻擊的) population.
Influenza's unpredictable nature makes it a moving target for researchers, says researcher Allison Aiello at the University of Michigan. “Even if we had complete seasonal flu data from the past, it wouldn't be much helpful for a new strain of influenza,” she explains.
Whi1e researchers are frustrated by the holes in their knowledge, they say, however, that the pub1ic--health community is generally doing a very good job responding to H1N1 with seasonal flu data that do exist. Studying influenza, says Osterholm, is “l(fā)ike looking through the windows of a house you can't get into because the door is locked.” Gathering the data researchers do have is like “l(fā)ooking through the windows to get a pretty good picture of what the inside looks like.”
One thing researchers do know for sure: the best way for people to protect against H1N1 is to get the vaccine once it becomes available to them.
What do we learn about H1N1 from the passage?
A. In fact it is not a kind of influenza virus.
B. It is quite possible to predict it in theory.
C. Old people are more likely to contract it than kids.
D. Receiving vaccines will be effective to protect against it.
The underlined phrase “fall back on” in Para. 3 probably means .
A. rely on B. pass on C. col1ect D. exchange
What do we know about previous seasonal flu data?
A. It is useless to study them.
B. It is still necessary to study them.
C. They are misleading most of the time.
D. They are much more helpful than expected.
Which of the following could be the best title for the passage?
A. Outbreaks of the flu B. Symptoms of the flu
C. Mysteries of the flu D. Risks of the flu
查看答案和解析>>
科目：高中英語 來源： 題型：
從電視上看到甲型H1N1流感(A/H1N1 flu)仍然在墨西哥流行，你為你正在墨西哥上學(xué)的筆友Anderson的健康與安全擔(dān)心。請(qǐng)你給他寫一封信詢問他的情況，并給他提出防護(hù)建議。
要點(diǎn)：
一、詢問
他的健康狀況；
他們學(xué)校有無甲型H1N1流感病例(A/H1N1 flu cases)；
他們是否對(duì)這一大面積流行的疾病感到恐懼。
二、建議
1、盡量待在家里，少去人多的地方；
2、勤洗手、講衛(wèi)生；
3、多開窗，保持空氣新鮮；
4、多吃水果、蔬菜。
注意：1、詞數(shù)：100左右；
2、首尾已給出，不記入總詞數(shù)。
Dear Anderson ,
From TV I know there are still many A/H1N1 flu cases reported recently in Mexico and many schools are closed as a result. I’m so worried about you.___________________________
________________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Yours，
Li Hua
查看答案和解析>>
科目：高中英語 來源：2015屆陜西省高二上學(xué)期期中考試英語試卷（解析版） 題型：單詞拼寫
根據(jù)下列句子及所給漢語注釋，在句子右邊的橫線上寫出空缺處各單詞的正確完整形式。（每空只寫一詞）
1.The number of people________(感染)with H1N1 is becoming larger and larger.
2.We a11 admire him for his_________(勇敢).
3.I’ll have you watch the opening___________ (儀式)of the Olympic Games.
4.The man was _________ (控告)of stealing.
5.He broke the vase __________ (故意地).
6.He made his points with_________(值得贊揚(yáng)的)clarity.
7.The criminal admitted he was________(有罪的).
8.You should_________(集中)all your efforts on your study.
9.We should _________ (團(tuán)結(jié))to fight poverty and diseases.
10.The committee__________(由……組成)of ten members.
查看答案和解析>>
科目：高中英語 來源：江蘇省2010屆高三下學(xué)期4月聯(lián)考 題型：單項(xiàng)填空
33．—I’m sure the Mexican Government will control the outbreak of the H1N1 flu in a very short time. Do you think so?
—Yes. _______ .
|
A．Great minds think alike |
B．The early bird catches the worm |
|
C．Facts speak louder than words |
D．No pains, no gains |
查看答案和解析>>
科目：高中英語 來源：廣東省2009-2010學(xué)年度高一下學(xué)期單元測(cè)試卷（英語） 題型：單詞拼寫
單詞拼寫（15分）
1. Since 1965, the m_________ leaf has been the centerpiece of the National Flag of Canada.
2. When the white liquid was m ________ with water, it became blue at once.
3. Wal-Mart has many chain stores all over the world and you may find one w______ a short
walk along a busy street in any big city.
4. There are seven c ______ in the world, of which Asia is the largest.
5. There are many tall trees in our city, some m ________ over 20 meters.
6. At daybreak, our ship entered Shanghai __________ ( 海港 ).
7. I like sitting on the top of the hill watching the fields in the ____________ (在遠(yuǎn)處 ).
8. Some people are t____________( 恐懼的) of heights, so they dare not climb high.
9. The news that there are some people who have died of A/ H1N1 has been ______(確認(rèn)).
10. Our school lies in the suburbs, and many students like to go _________( 往市區(qū)) to buy what they need.
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話：027-86699610 舉報(bào)郵箱：58377363@163.com