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

Be careful when you cross the road in rush hours so as to avoid        by a car

A.being knocked down        B. knocking down

C.to be knocked down         D. to knock down

 

【答案】

A

【解析】

試題分析:考查非謂語動詞作賓語的用法。Avoid后只接doing,且knock down 與其邏輯主語you 是被動關系,要用being knocked down,故選A。句意:在上下班高峰期過馬路時你要小心,以免被車撞了。

考點:考查非謂語動詞作賓語

 

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

I know what you’re thinking: pizza(比薩餅)? For breakfast? But the truth is that you can have last night’s leftovers in the a.m. if you want to.

I know lots of women who skip breakfast (不吃早飯), and they have a ton of different excuses for doing it. Some say they don’t have time, others think they’re “saying” calories (卡路里),still others just don’t like breakfast food.學科But the bottom line is that eating in the morning is very important when you’re trying to lose weight .“Eating just about anything from 300 to 400 calories would be better than nothing at all,” says Katherine Brooking, R.D. ,  who developed the super-easy eating plan for this year’s “SELF CHALLENGE”. And even pizza can be healthy if it’s loaded with vegetables, and you stick to one small piece.學科Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southern California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal.

So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night’s leftovers – it may sound crazy, but if it works for you, do it! I find if I tell myself, “You can always eat it tomorrow.” I put away the leftovers instead of eating more that night. Try it … you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects.

The word “leftovers” in paragraph I probably means  ______.

A. food remaining after a meal           B. things left undone

C. meals made of vegetables            D. pizza topped with fruit

What can we infer from the text?

A. Working women usually have breakfast in a hurry.

B. Many people have wrong ideas about breakfast.

C. There are some easy ways of cooking a meal.

D. Eating vegetables helps save energy.

According to the last paragraph, it is important to _______.

A. eat something for breakfast      B. be careful about what you cat

C. heat up food before eating it      D. cat calorie-controlled food

The text is written mainly for those _______.

 A. who go to work early            B. who want to lose weight

 C. who stay up late                D. who eat before sleep

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

The surprising experiment I am about to describe proves that air is all around you and that it proves down upon you. Air pressure is a wonderful force. When you swim underwater, you can feel water push down your body. The air all around you does the same. However, your body is so used to it that you do not notice this. The pressure is caused by a layer of air called the atmosphere. This layer surrounds the Earth, extending to about five kilometers above the Earth’s surface.

The following experiment is an easy one that you can do at home. But make sure that you are supervised, because you will need to use matches. Now foe the experiment!

    What you need

    ·A hard-boiled egg without the shell

    ·A bottle with a neck slightly smaller than the egg

·A piece of paper

·A match

Metheod

1) Check that the paper will sit firmly on the neck of the bottle.

2) Tear the paper into strips and put the strips into the bottle.

3) Light the paper by dropping a burning match into the bottle.

4) Quickly sit the egg on the neck of the bottle.

Result

  Astonishingly, the egg will be sucked into the bottle. Your friends will be amazed when you show them the experiment. But be careful when you handle matches.

Why it happened

As the paper burns, it needs oxygen and uses up the oxygen (air) in the bottle. The egg acts as a seal in the neck of the bottle, so no more air can get inside. This reduces the air pressure inside the bottle. The air pressure must equalize, so more air from outside must enter the bottle. The outside air pressure against the egg and then the egg is pushed into the bottle! The proves that air is all around and that it is pressing down on it.

64.Why is there the need to take care when you are doing the experiment?

       A.The bottle could break.

       B.You need to light the paper with a match.

       C.The egg needs to be shelled.

       D.The egg has to be perfectly placed on the neck of the bottle.

65.In the experiment, the burning inside the bottle can___.

       A.equalize the air pressure inside and outside

       B.make a seal in the neck of the bottle

       C.finish up the oxygen inside the bottle

       D.produce more oxygen inside the bottle

66.How did the egg put into the bottle?

       A.The oxygen inside the bottle sucked the egg in.

       B.It became salt without the shell.

       C.The neck of the bottle was wide enough.

       D.The outside air pressure forced it into the bottle.

67.The experiment is carried cut to prove ______.

       A.water pushes on your body when you swim underwater.

       B.the earth is surrounded by a layer of air called the atmosphere.

       C.the pressure of air around us has a powerful force.

       D.the air pressure is not equalized around us.

查看答案和解析>>

科目:高中英語 來源:2013-2014學年福建三明一中高二上期第一次月考英語卷(解析版) 題型:閱讀理解

Last week, President Barack Obama gave a back- to-school speech to students at the Julia R. Masterman Laboratory and Demonstration School in Philadelphia, Pennsylvania. Students in schools across the country al­so tuned in to watch the President's speech on TV. He stressed the importance of trying new things, working hard and believing in yourself.

While admitting that times are tough for families across the country, Obama reminded students that hard work now can mean big success later. “Nobody gets to write your destiny(命運)but you,” he said. “Your future is in your hands. Your life is what you make of it. And nothing—absolutely nothing—is beyond your reach."

Obama spoke about his own life, and lessons he learned from his mother, who had to remind him to stay focused on his studies. He told students the recipe (訣竅) for success: “Showing up to school on time. Paying attention in class. Doing your homework. Studying for exams. Staying out of trouble. ”

Obama encouraged students to embrace(欣然接受)what makes them different. “We shouldn't be em­barrassed by the things that make us different,” he said. “We should be proud of them.”

He also suggested taking advantage of all of the opportunities at your school, and always being open to trying new things. “Just because you’re not the best at something today doesn't mean you can't be tomorrow,” he said. “Even if you don't think of yourself as a math person or as a science person—you can still excel in those subjects if you're willing to make the effort. And you may find out you have talents you’d never dreamed of.”

1.What does Obama mainly want to tell the students in Paragraph 2?

A. Some families are experiencing a hard time.

B. Different people have different destinies.

C. They can create their own future.

D. Those who don't study hard will achieve nothing.

2.In Paragraph 3, Obama tried to encourage the students by _______.

A. telling an interesting story

B. sharing the secret to success

C. telling his own life experience

D. referring to some famous people

3.Obama suggested the students should   _________ .

A. not study hard for high marks

B. accept things that make them different

C. do what they are really interested in

D. not do things which are difficult for them

4.The underlined phrase “excel in” in the last para­graph means “_________”.

A. be careful with                                                   B. be attracted to

C. be interested in                                                 D. be good at

 

查看答案和解析>>

科目:高中英語 來源:2012-2013學年福建省漳州市高考模擬英語試卷(解析版) 題型:閱讀理解

D

Holding a cell phone against your ear or storing it in your pocket may be dangerous to your health. This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased. Apple, for example, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer, recommends 2.5 centimeters.

If health issues arise from cell phone use, the possible effects are huge. Voice calls - Americans chat on cell phones 2.26 trillion(萬億)minutes annually - earn $109 billion for the wireless carriers.

Devra Davis, an expert who has worked for the University of Pittsburgh, has published a book about cell phone radiation, “Disconnect.” The book surveys scientific research and concludes the question is not settled.

Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.

“Most cancers have multiple causes,” she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.

Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid(易吸收的液體). No studies have yet been completed on cell phone radiation and children, she says.

Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiation had damaged DNA in their brains.

Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen(腹部).

1.Why is the warning in the small print?

A.They think people will not care about it.

B.There is not enough space for the warning.

C.They don’t want the users to pay attention to it.

D.The warning is not important at all.

2.What does the underlined word in sixth paragraph probably mean?

A.acceptable        B.valuable           C.accessible         D.easily affected

3.What can we conclude from the last paragraph?

A.Pregnant women should keep cell phones away.

B.People should use cell phones in the correct way.

C.If you are a child, you’d better text than make phone calls.

D.When you use a cell phone, use a wired headset or the phone’s speaker.

4.What does the passage mainly talk about?

A.Be careful when using cell phones.

B.Don’t hold your cell phone against your ear.

C.Rats exposed to radiation have damaged DNA in their brains.

D.Low-energy radiation could damage cells that could lead to cancer.

 

查看答案和解析>>

科目:高中英語 來源:2012-2013學年福建省漳州市七校高三第三次聯考英語試卷(解析版) 題型:閱讀理解

C

Holding a cell phone against your ear or storing it in your pocket may be dangerous to your health. This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased. Apple, for example, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer, recommends 2.5 centimeters.

If health issues arise from cell phone use, the possible effects are huge. Voice calls - Americans chat on cell phones 2.26 trillion(萬億)minutes annually - earn $109 billion for the wireless carriers.

Devra Davis, an expert who has worked for the University of Pittsburgh, has published a book about cell phone radiation, “Disconnect.” The book surveys scientific research and concludes the question is not settled.

Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.

“Most cancers have multiple causes,” she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.

Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid(易吸收的液體). No studies have yet been completed on cell phone radiation and children, she says.

Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiation had damaged DNA in their brains.

Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen(腹部).

1.Why is the warning in the small print?

A.They think people will not care about it.

B.There is not enough space for the warning.

C.They don’t want the users to pay attention to it.

D.The warning is not important at all.

2. What does the underlined word in sixth paragraph probably mean?

A.acceptable        B.valuable           C.accessible         D.easily affected

3.What can we conclude from the last paragraph?

A.Pregnant women should keep cell phones away.

B.People should use cell phones in the correct way.

C.If you are a child, you’d better text than make phone calls.

D.When you use a cell phone, use a wired headset or the phone’s speaker.

4. What does the passage mainly talk about?

A.Be careful when using cell phones.

B.Don’t hold your cell phone against your ear.

C.Rats exposed to radiation have damaged DNA in their brains.

D.Low-energy radiation could damage cells that could lead to cancer.

 

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
国产婷婷精品av在线| 亚洲高清视频的网址| 一本到不卡免费一区二区| 亚洲欧美色图小说| 欧美午夜不卡视频| 五月天亚洲婷婷| 日韩美一区二区三区| 韩日欧美一区二区三区| 国产欧美一区二区三区在线老狼| 成人禁用看黄a在线| 亚洲激情自拍视频| 91麻豆精品国产自产在线观看一区 | 国产在线乱码一区二区三区| 久久精品视频在线看| 99久久久国产精品免费蜜臀| 夜夜嗨av一区二区三区四季av| 欧美久久久久久久久中文字幕| 久久精品理论片| 国产欧美中文在线| 91精品福利视频| 麻豆91在线播放免费| 国产无一区二区| 日本精品一级二级| 蜜桃91丨九色丨蝌蚪91桃色| 国产欧美日本一区二区三区| 日本伦理一区二区| 麻豆freexxxx性91精品| 国产人伦精品一区二区| 在线视频一区二区免费| 裸体歌舞表演一区二区| 国产精品欧美一级免费| 欧美日韩一区不卡| 国产揄拍国内精品对白| 亚洲另类春色国产| 精品久久一区二区三区| 99久久精品国产网站| 日韩精品欧美精品| 国产精品青草久久| 91精品蜜臀在线一区尤物| 国产成人综合在线| 五月天国产精品| 日本一区二区成人| 这里只有精品视频在线观看| 丁香啪啪综合成人亚洲小说| 亚欧色一区w666天堂| 久久精品亚洲精品国产欧美kt∨ | 中文乱码免费一区二区| 欧美日韩一区二区三区视频| 国产精品一区二区男女羞羞无遮挡| 亚洲精品精品亚洲| 精品国产91久久久久久久妲己| 91丝袜高跟美女视频| 久久激五月天综合精品| 一区二区视频在线| 久久久青草青青国产亚洲免观| 在线视频国产一区| 国产suv一区二区三区88区| 午夜久久久久久久久久一区二区| 欧美国产欧美亚州国产日韩mv天天看完整 | 欧美色大人视频| 成人av网站免费观看| 免播放器亚洲一区| 亚洲精品美国一| 国产欧美一区视频| 日韩视频免费直播| 在线观看区一区二| 成人99免费视频| 国产综合久久久久影院| 五月天激情小说综合| 亚洲人吸女人奶水| 欧美激情自拍偷拍| 精品久久久久久久久久久久包黑料 | 欧美aⅴ一区二区三区视频| 亚洲情趣在线观看| 国产三级精品三级在线专区| 欧美一区二区福利视频| 在线欧美日韩国产| av在线不卡网| 国产成人精品一区二| 美女国产一区二区三区| 亚洲高清在线精品| 亚洲精品综合在线| 国产精品久久久久久久久免费丝袜 | 欧美激情在线观看视频免费| 精品久久五月天| 91精品午夜视频| 欧美亚洲图片小说| 91免费版pro下载短视频| 国产v日产∨综合v精品视频| 黄色成人免费在线| 免费高清不卡av| 日韩福利电影在线| 午夜精品123| 亚洲成人激情自拍| 亚洲综合偷拍欧美一区色| 亚洲欧美aⅴ...| 亚洲婷婷国产精品电影人久久| 欧美国产日韩一二三区| 国产欧美综合在线观看第十页| www久久精品| 精品国产乱码久久久久久蜜臀| 69精品人人人人| 欧美精品v日韩精品v韩国精品v| 欧美综合一区二区| 欧美性大战久久久| 欧美影院午夜播放| 欧美体内she精视频| 欧美天堂亚洲电影院在线播放| 91成人网在线| 欧美在线播放高清精品| 色噜噜狠狠一区二区三区果冻| 91污在线观看| 色综合中文综合网| 国产精品自拍一区| 国产精品亚洲成人| 大白屁股一区二区视频| 成人国产电影网| av在线不卡电影| 色综合一个色综合亚洲| 一本大道久久a久久精二百 | 91麻豆福利精品推荐| 色国产精品一区在线观看| 日本丶国产丶欧美色综合| 欧美色欧美亚洲另类二区| 欧美日韩电影在线播放| 欧美一区二区视频在线观看 | 91精品久久久久久久久99蜜臂| 视频在线观看一区二区三区| 欧美成人a∨高清免费观看| 首页国产丝袜综合| 日韩视频免费观看高清在线视频| 日本韩国欧美一区| 亚洲午夜三级在线| 久久综合综合久久综合| 日本欧美大码aⅴ在线播放| 日本成人在线视频网站| 狠狠久久亚洲欧美| 成人黄色777网| 91免费在线播放| 欧美婷婷六月丁香综合色| 91精品国产91久久久久久一区二区 | 亚洲成人激情综合网| 美女在线一区二区| 国产成人自拍网| 91麻豆成人久久精品二区三区| 欧美综合一区二区三区| 91精品国产综合久久精品app| 精品少妇一区二区三区日产乱码 | 日本不卡在线视频| 国产精品一品视频| 色综合久久久久久久| 欧美精品一级二级三级| 日韩欧美一区中文| 日韩欧美卡一卡二| 日日摸夜夜添夜夜添亚洲女人| 日本少妇一区二区| 国产福利一区二区三区| 91网上在线视频| 欧美一级一区二区| 国产精品欧美一级免费| 亚洲va欧美va人人爽午夜| 国产真实乱偷精品视频免| 91丨九色丨蝌蚪丨老版| 91精品国产入口| 国产精品区一区二区三| 丝袜脚交一区二区| 成人午夜免费电影| 欧美精品视频www在线观看| 久久久国产精品午夜一区ai换脸 | 中文字幕乱码一区二区免费| 亚洲一级二级三级| 国产一区二区三区| 在线观看亚洲一区| 精品粉嫩aⅴ一区二区三区四区| 亚洲视频免费观看| 精品在线观看视频| 91福利精品第一导航| www久久精品| 亚洲va在线va天堂| 成人午夜免费视频| 91精品国产乱码| 亚洲欧美另类小说| 国内外成人在线| 欧美日韩免费观看一区二区三区| 久久精子c满五个校花| 亚洲国产精品久久人人爱蜜臀| 国产一区二区三区黄视频| 欧美性xxxxx极品少妇| 国产欧美精品一区二区色综合| 午夜久久久影院| 91网站视频在线观看| 久久影院午夜论| 同产精品九九九| 99re这里都是精品| 久久亚洲精品小早川怜子| 香蕉久久夜色精品国产使用方法| 成人性视频免费网站| 欧美v国产在线一区二区三区| 亚洲综合免费观看高清完整版在线| 国产a区久久久|