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

Although everything seems to have been taken into consideration, ____  accident can happen when the astronauts walk in  _____  space.


  1. A.
    不填;the
  2. B.
    an;不填
  3. C.
    the;the
  4. D.
    an;the
B
試題分析:第一空表泛指,并沒強調(diào)是哪起事故,故用不定冠詞an,in space 在太空上,為固定短語。句意:盡管一切事情都已考慮,但宇航員在太空行走時還是有可能發(fā)生事故。
考點:冠詞習(xí)慣用法
點評:解答有關(guān)冠詞的題型,可以從兩方面入手,一是習(xí)慣搭配,二是固定短語。對于固定短語平 時應(yīng)多讀多記。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:閱讀理解

Vitamin E supplements(補充品),which millions take in the hope of longer, healthier lives, may do more harm than good, researchers reported on Wednesday.?

In fact, people taking high doses(劑量)of vitamin E may in some cases be more likely to die earlier, although the reasons are not clear, said Dr. Edgar Miller of Johns Hopkins University in Baltimore, who led the study.“I think people take vitamin E because they think it is going to make you live longer, but this(study)doesn’t support that.”Miller told reporters.?

Miller and colleagues re?analyzed 19 studies of vitamin E and health between 1993 and 2004. The tests involved more than 136,000 mostly elderly patients in North America, Europe and China. People who took 200 international units of vitamin E a day or more died at a higher rate during the study, which lasted three years, than people who did not take supplements, they told a meeting of the American Heart Association.“It’s about a 5 percent increased risk at 45 years in the tests combined together,”Miller said.“That doesn’t sound like a lot but if you apply it to 25 percent of the (U.S.)adult population taking vitamin E, that is significant.”?

Miller, whose findings are also being published online by the Annals of Internal Medicine, said two?thirds of people who take vitamin E supplements take 400 IU or more.“We don’t think that people need to take vitamin E supplements, which they can get enough from the diet,”he said. Nuts, oils, whole grains and green leafy vegetables are all rich in vitamin E.?

People take vitamin E supplements, hoping that________.?

A.they can lose weight easily?

B.they may live a longer and healthier life?

C.they can get more and more beautiful?

D.they no longer need any medicine

The following statements can give us information about Miller EXCEPT_________.?

A.Miller and his team based their research on 19 cases of vitamin E and health between 1993 and 2004?

B.Miller thinks it unnecessary for people to take vitamin E supplements?

C.Miller supposes it impossible for people to get enough vitamin E from their diets?

D.Miller played an important role in the tests conducted by the researchers

  Which of the following contains rich vitamin E??

A.Nuts.       

B.Whole grains.   ?

C.Green leafy vegetables.      

D.All of the above.

What is this text mainly about??

A.It is reported in a study that vitamin E may do more harm than good to people to live longer and get healthier.

B.Dr.Edgar Miller and his colleagues studied many cases of vitamin E and health.?

C.Dr.Edgar Miller advises that people should not depend on vitamin E supplements for longer and healthier lives.

D.People who took 200 international units of vitamin E a day or more died at a higher rate than people who did not take supplements.

查看答案和解析>>

科目:高中英語 來源:2012屆重慶市一中高三上學(xué)期第一次月考英語試卷 題型:閱讀理解

As the forceful king of Macedonia(馬其頓), Alexander the Great overthrew the Persian Empire, becoming a hero that would survive centuries after his death.
Born in 356 B.C., Alexander III was the son of Philip II and Olympias. Alexander’s parents wanted him to receive the finest education, and arranged for him to study under Aristotle, regarded as one of the greatest scholars.
Alexander’s father was a strong leader. Philip II built an impressive army and established the Macedonian kingdom; he was even planning to attack Persia shortly before his death.
In 336, Philip was murdered by one of his guards. Although it was obvious that the guard had a personal hatred, there are clues that other people were related to it.
After Alexander was cleared as a suspect, he succeeded his father without opposition, and killed those said to be responsible for his father’s murder, as well as all rivals. He was then just 20 years old. He then prepared to attack Persia.
In the spring of 334, Alexander led the army made up of nearly 50,000 soldiers into Asia, which is called “the most powerful military expedition ever to leave Greece”, He soundly defeated the Persian army at the Granicus River, sending a strong message to Darius III, leader of the Persian Empire.
In 333, Alexander faced Darius at Issus, a mountain pass. The Macedonian army was greatly outnumbered but able to work the narrow mountain passageway to their advantage. Darius managed to escape. Continuing down the Mediterranean Coast, Alexander took every city in his path.
In 332 Alexander declared Egypt to be part of the Greek Empire and was crowned Pharaoh(法老).
When Alexander left Egypt in 331, he defeated the Persians again and was crowned leader of Asia.
In 323, however, Alexander developed a fever on the way back home and died 10 days later at Babylon. He was just 33 years old.
【小題1】What can we know about Philip’s death?

A.He was killed by someone intending to take power from him.
B.Alexander sent someone who hated Philip to kill him.
C.His death was related to his plan of fighting Persia.
D.The murder might be organized by a group of people.
【小題2】The Macedonian army could defeat the Persians at Issus mainly because _________.
A.Darius didn’t command his army in the battlefield
B.Macedonian soldiers were more than the Persian soldiers
C.Macedonian soldiers could fight better at the mountain pass
D.Macedonia was more powerful than the Persian Empire
【小題3】In which order did Alexander do the following things?
a.Totally overthrew the Persian Empire.
b.Defeated the Persian army at Issus.
c.Was crowned Pharaoh of Egypt.
d.Defeated the Persian army at the Granicus River.
e.Became the leader of Macedonia.
A.e, d, b, c, aB.d, e, a, c, b
C.e, b, d, c, aD.d, a, c, e, b
【小題4】According to the passage, we can infer _________.
A.Aristotle taught Alexander how to defeat other nations
B.Alexander was happy about his father’s death
C.Persia is tougher to defeat than Egypt
D.Macedonia soon declined after Alexander died

查看答案和解析>>

科目:高中英語 來源:2012屆廣東省肇慶市二高高三第三次階段考試英語卷 題型:填空題

請閱讀下列應(yīng)用文及相關(guān)信息,并按照要求匹配信息。請在答題卡上將對應(yīng)題號的相應(yīng)選項字母涂黑。
以下是請求幫助者的資料:
A.  As we know, the 2008 Olympic Games will be held in Beijing and many people from other countries will come to visit China. The taxi drivers in Dongfeng Taxi Company think the way to show kindness is to be able to greet the foreigners in their languages. They need someone who can teach them languages and the best time is at night when they are not so busy.
B.  Tom is so addicted to on-line games that he cannot concentrate on his study like before. Now he often misses school in order to play games, thus telling lies to his teachers and parents again and again. Though he realizes what he does is wrong, he just can’t stop it. How badly he needs someone’s help.
C.  Mane, a 44-year-old single mother of three, has to walk two miles to the nearest supermarket twice a week because she doesn’t know which bus to take. What’s worse, since she does not know words, she can not write out a shopping list. Also, she can only recognize items by sight, so if the product has a different label, she will not recognize it as the product she wants.
D.  "Helping Hand"Organization will hold an event to help the starving children in Africa. The event starts in August and those taking part in will go without food for 30 hours. In this way, it is expected that money will be raised for the poor children.
E.  "Green Earth" cares a lot for the animals in danger. Still many people in the world don’t know much about the importance of animal protecting. This summer vacation a lot of events will be organized to call on people to live in harmony with our earth.
F.  A group of young children in a remote village in southwest China are in great need of teachers. Because of the low salary, many teachers came and then went. The villagers hope to have a teacher who can stay for at least a year, because they know knowledge can make a difference to the children’s future.
以下是樂于提供資助的人員信息介紹。請匹配他們與所對應(yīng)的資助對象。
【小題1】Stephen:  Last summer I went through a training program and became a literacy volunteer. When I began to discover what other people’s lives were like because they could not read, I realized the true importance of reading.
【小題2】Ben:  After graduation, I don’t want to apply for a job at once Instead, I plan to spare one year to help those who need help most and try my best to improve their lives. You know, education is essential to poverty relief and at the same time I’ll get valuable experience for my future career.
【小題3】Susan:  I’m a girl from England and have studied French for years. I’m here in Beijing University studying Chinese. I like China as it is full of mysteries. So I hope the voluntary work will help me to get in touch with Chinese people and get to know about China. Although my study is busy, I can be free at night and at the weekends.
【小題4】Tim:  Since I myself have overcome a lot of difficulties in my life, I understand young people’s problems and I know how to listen patiently to others and offer some advice. I’m working now in the daytime so I can only spend two to three hours a day at night helping others.
【小題5】Lisa:  I burst into tears when I saw those children in a TV program. What a sight. They are only bone and skin left. What’s worse, every day the children are dying because of lack of food. I realized how lucky I am with enough food and a good chance to get education. The summer vacation is coming and I hope I can do something for them.

查看答案和解析>>

科目:高中英語 來源:2011-2012學(xué)年山東省濟南外國語學(xué)校高一第一學(xué)期期中考試英語試卷 題型:填空題

[A]. As we know, Beijing is an international city and many foreigners come to visit Beijing. The taxi drivers think it is kind to greet the foreigners in English. They need someone who can teach them English at night when they are not so busy.
[B]. Tom is crazy about on-line games that he cannot focus on his study like before. Now he often misses school in order to play games, and tell lies to his teachers and parents. He needs someone's help and advice.
[C]. Mane, a old woman, has to walk two miles to the nearest supermarket because she doesn't know which bus to take. Since she does not know words, she can not write out a shopping list and even can’t recognize the goods because she couldn’t read.
[D]. "Helping hand" organization will hold an event to help the starving(饑餓的) children in Africa. Those who take part in it will go without food for 30 hours in order to raise money for the poor children.
[E]. "Green Earth" cares a lot for the animals in danger. This summer holiday a lot of events will be organized to call on people to protect animals.
[F]. A group of young children in a remote village in southwest China are in great need of teachers. The villagers hope to have a teacher who can stay for at least a year, because they know knowledge can change the children's future.
以下是樂于提供幫助的人員信息介紹,請匹配他們與所對應(yīng)的幫助對象。
( )1. Stephen: Last summer I joined in a training program and became a literacy(識字,讀寫能力) volunteer. When I found what other people's lives were like because they could not read, I realized the true importance of reading.
( )2. Ben: After graduation I plan to spend a year helping those poor children and improving their lives. You know, education is important to poverty relief(扶貧)
( )3. Susan: I'm a foreign student in Beijing University studying Chinese. I’d like to get in touch with Chinese people and get to know more about China. Although my study is busy, I can be free at night and at the weekends.
( )4. Tim: I understand young people's problems and I know how to listen patiently to others and offer some advice. But I can only spend two to three hours a day at night to help others.
( )5. Lisa: I burst into tears when I saw those children who are dying because of lack of food in a TV program. I realized how lucky I am with enough food and a good chance to get education. I hope I can do something for them.

查看答案和解析>>

科目:高中英語 來源:2013屆遼寧省沈陽二中高三第一階段測試英語試卷(帶解析) 題型:填空題

根據(jù)短文內(nèi)容,從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。
Possessing a car gives one a greater degree of freedom. With the building of good fast motorways, long distances can be covered rapidly and pleasantly.    【小題1】   You will no longer be forced to rely on public transport and work locally. You can choose from a greater variety of jobs and probably changes your work more frequently as you are not limited to a small area.
Although you can afford to buy it now, you have to consider the future.    【小題2】  However large the first sum you have to pay, you have to spend more in running the machine—the various taxes, the fuel, and of course the repairs. The last is especially endless. Any single repair may cost you thousands.
  【小題3】   As more and more cars are produced and used, an even larger amount of poisonous gas is being sent out. Some of the contents of this gas, such as lead, can cause actual harm to the health of people. Many of the minor illness of modern industrial society, headaches, tiredness, and stomachaches may just arise from the gas.
   【小題4】    It has been said that when a man is sitting behind the wheel, his car becomes the display of his personality. People who are normally quiet and pleasant may become unrecognizable when they are behind the wheel. They are ill-mannered and aggressive and selfish. All their hidden character seems to be brought to the surface by act of driving.
Traveling by car actually brings more inconvenience. Driving a car may be more comfortable than taking a crowded bus. But any advantage of driving a car is often gone in traffic jams, endless queues of cars through all the main streets.   【小題5】   

A.Driving a car often brings out a man’s worst qualities.
B.Driving a car may cause many traffic accidents.
C.If you have a car, you can move around freely.
D.Considering this, I don’t support the use of more cars.
E. A car may bring you heavy financial burden.
F. More cars can produce serious air pollution.
G. Knowing you are able to drive makes you more confident.

查看答案和解析>>

同步練習(xí)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
国产自产视频一区二区三区| 美女www一区二区| 成人黄色在线看| 国产精品乱人伦| 国产精品123| 国产精品久久久久久一区二区三区| www.99精品| 一区二区三区在线观看国产| 欧美色电影在线| 日韩中文欧美在线| 欧美成人一区二区三区在线观看| 狠狠色丁香久久婷婷综合_中| 久久网站热最新地址| 成人丝袜18视频在线观看| 成人免费在线视频| 欧美日韩一区高清| 另类小说综合欧美亚洲| 久久久精品影视| 99热在这里有精品免费| 亚洲综合区在线| 欧美一区二区久久久| 国产精品一区二区视频| 亚洲视频综合在线| 欧美日韩情趣电影| 久久99久久久欧美国产| 亚洲国产精品精华液ab| 日本韩国一区二区| 人妖欧美一区二区| 国产亚洲精久久久久久| 成人av资源下载| 亚洲毛片av在线| 日韩欧美中文字幕一区| 成人黄页毛片网站| 亚洲aⅴ怡春院| 久久久久久免费毛片精品| 97精品国产97久久久久久久久久久久 | 国产精品久久久久婷婷| 日本高清视频一区二区| 美女视频免费一区| 亚洲国产激情av| 欧美亚洲动漫精品| 国内偷窥港台综合视频在线播放| 国产精品久久久久影院| 欧美久久久久久久久| 国产一区二区91| 一卡二卡三卡日韩欧美| 欧美精品一区在线观看| 91成人在线观看喷潮| 激情文学综合丁香| 亚洲免费毛片网站| 五月天中文字幕一区二区| 久久久综合激的五月天| 精品视频在线视频| 国产成人精品www牛牛影视| 亚洲午夜一区二区三区| 久久精品人人爽人人爽| 欧美无人高清视频在线观看| 国产精品一卡二卡在线观看| 亚洲尤物视频在线| 国产视频一区二区三区在线观看| 欧美吞精做爰啪啪高潮| 国产馆精品极品| 天堂一区二区在线免费观看| 国产精品无码永久免费888| 51精品久久久久久久蜜臀| av资源站一区| 久久超碰97人人做人人爱| 一区二区三区日韩精品视频| 久久久99久久| 欧美色综合影院| 成人在线一区二区三区| 乱中年女人伦av一区二区| 亚洲欧美一区二区视频| 欧美tickle裸体挠脚心vk| 色偷偷一区二区三区| 国内精品写真在线观看 | 精品播放一区二区| 欧美视频一区在线| 99r国产精品| 国产一区福利在线| 日本伊人色综合网| 亚洲欧美乱综合| 国产精品免费视频一区| 精品国产91久久久久久久妲己| 精品视频一区二区不卡| 93久久精品日日躁夜夜躁欧美| 国产一区 二区| 麻豆精品国产91久久久久久| 亚洲成在人线在线播放| 亚洲精品一二三四区| 亚洲国产岛国毛片在线| 久久色成人在线| 日韩欧美国产三级| 欧美一区二区三区精品| 欧美视频一区在线| 91行情网站电视在线观看高清版| 成人精品gif动图一区| 国产一区二区三区| 欧美乱妇15p| 欧美色区777第一页| 91久久久免费一区二区| 95精品视频在线| 97久久超碰国产精品电影| 波多野结衣亚洲| 成人永久aaa| 国产精品资源在线观看| 国产一区视频网站| 韩国在线一区二区| 久久国产尿小便嘘嘘尿| 美女网站色91| 蜜桃av一区二区三区| 蜜臀久久久99精品久久久久久| 三级不卡在线观看| 日韩av一区二区三区四区| 天使萌一区二区三区免费观看| 调教+趴+乳夹+国产+精品| 亚洲福中文字幕伊人影院| 亚洲成人资源在线| 亚洲123区在线观看| 性做久久久久久免费观看| 婷婷综合五月天| 日韩av在线发布| 久久99久久99精品免视看婷婷| 欧美aaaaaa午夜精品| 麻豆精品一区二区av白丝在线| 六月丁香婷婷久久| 国产美女精品在线| 高清不卡一二三区| 成人美女视频在线看| 99国产精品久久久| 在线精品视频免费观看| 欧美性高清videossexo| 欧美久久久久久蜜桃| 日韩一级成人av| 久久亚洲一级片| 中文字幕国产一区二区| 自拍偷拍欧美精品| 亚洲自拍偷拍麻豆| 日韩av电影天堂| 激情综合色综合久久综合| 国产福利一区在线| 99久久精品国产网站| 色狠狠av一区二区三区| 欧美日韩另类国产亚洲欧美一级| 欧美一区在线视频| 精品国产91洋老外米糕| 国产精品少妇自拍| 一区二区三区四区乱视频| 午夜欧美电影在线观看| 久久草av在线| 成人av免费在线播放| 欧美吞精做爰啪啪高潮| 精品国内二区三区| 国产精品天天看| 尤物av一区二区| 免费在线观看不卡| 国产精品一区二区果冻传媒| 一本大道久久a久久综合| 欧美精品777| 久久综合九色综合欧美98| 国产精品超碰97尤物18| 天涯成人国产亚洲精品一区av| 国产一区二区三区日韩| 99re成人精品视频| 亚洲成人av免费| 国模娜娜一区二区三区| 99riav久久精品riav| 欧美一区二区三区白人| 国产精品视频一区二区三区不卡| 亚洲图片欧美色图| 国产一区二区三区不卡在线观看| 色婷婷av一区二区三区软件 | 尤物av一区二区| 精品在线免费视频| 91丝袜国产在线播放| 日韩午夜激情免费电影| 中文字幕制服丝袜一区二区三区 | 久久久久久久久久久久久夜| 亚洲女与黑人做爰| 另类小说色综合网站| 91麻豆免费观看| 欧美xxxx老人做受| 亚洲欧美电影一区二区| 国产在线视频一区二区三区| 91国在线观看| 久久久久国产精品麻豆| 亚洲一区二区欧美激情| 国产精品亚洲一区二区三区在线 | 视频一区二区中文字幕| 99久久婷婷国产综合精品| 欧美一区二区三区日韩视频| 亚洲欧美日韩系列| 国产一区二区三区最好精华液| 欧美亚洲丝袜传媒另类| 国产欧美va欧美不卡在线| 日本亚洲三级在线| 97精品国产露脸对白| 久久久久国产精品厨房| 日本欧美大码aⅴ在线播放| 99视频超级精品|