日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

精英家教網 > 高中英語 > 題目詳情
Be careful _____ to turn off the light.
[     ]
A. not forget
B. not to forget
C. forget not
D. forget to not
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
色欲av永久无码精品无码蜜桃| 亚洲久本草在线中文字幕| 国产乱码精品| 91精品国产91久久久久久黑人| 欧美精品国产白浆久久久久| 91精品国产色综合久久不卡粉嫩| 最新中文字幕在线播放| av免费在线观看网址| 每日更新av在线播放| 四虎精品一区二区三区| a在线观看免费| 91亚洲国产成人久久精品麻豆| 台湾佬中文在线| 日本网站在线播放| 日韩欧美亚洲国产| 精品在线视频观看| 国产精品99精品无码视| 欧美黑人一级片| 久久久精品人妻一区二区三区四| 中国毛片直接看| 性欧美疯狂猛交69hd| 网爆门在线观看| 岛国片在线免费观看| 少妇太紧太爽又黄又硬又爽小说| 中文字幕第24页| 婷婷社区五月天| 欧美黑人精品一区二区不卡| 国产精品二区一区二区aⅴ| 日韩精品一区二区亚洲av性色| 一区二区三区在线播放视频| 日本女人性生活视频| 欧美黄色免费看| 国产一级特黄a高潮片| 日韩精品一区二区三| 99热只有这里有精品| 日韩欧美一级大片| 一女二男一黄一片| 丰满熟妇乱又伦| 黄页免费在线| 国产精品二线| 国产在线xxx| 我爱我色成人网| 在线欧美激情| 天堂日韩电影| 91成人精品| 亚洲永久免费精品| 精品无码三级在线观看视频| 国产·精品毛片| 国产日韩精品一区| 一区二区三区四区不卡在线 | 丁香婷婷综合激情| 黑人糟蹋人妻hd中文字幕| 亚洲www免费| 青青操视频在线| 免费黄网站在线播放| 色呦呦在线视频| 欧美电影免费观看| 日韩视频一二区| 视频国产一区| 一区二区激情| 国产jizzjizz一区二区| 国产精品卡一卡二卡三| 丁香五六月婷婷久久激情| 欧美精品在线一区二区三区| 国产丝袜一区二区| 九九热最新视频//这里只有精品| 欧美亚洲另类在线| 成人自拍网站| 日本老太婆做爰视频| 久久精品免费一区二区| 麻豆tv在线观看| 91嫩草|国产丨精品入口| 国产99久久久久久免费看| 色婷婷av一区二区三区之红樱桃 | 99热这里只有精品4| 中文字幕黄色片| 免费a视频在线观看| 91大神xh98hx在线播放| 中文字幕av一区二区三区佐山爱| 国语一区二区三区| 欧美午夜电影在线观看 | 国产大陆a不卡| 亚洲欧美激情一区二区| 777久久久精品| 日韩少妇与小伙激情| 成人自拍性视频| 在线免费观看成人网| 中文字幕网av| 国产免费一区二区三区四区| 91丨九色丨蝌蚪丨对白| av在线免费观看网| 精品一区二区三区中文字幕视频 | 亚洲色图都市小说| 欧美一二三四在线| 久久久久久久电影一区| 久久久7777| 天天爱天天操天天干| 亚洲精品天堂网| 99久久精品国产一区二区成人| 国产精品99999| 性欧美video另类hd尤物| 外国成人激情视频| 国产成人av一区二区三区在线观看| 亚洲一区二区三区自拍| 日韩电影免费观看中文字幕| 国产精品久久久| 97超碰人人爱| 90岁老太婆乱淫| 国产麻豆免费观看| 欧美理论片在线播放| 久久97视频| 风流少妇一区二区| 91国产精品成人| 欧美大片va欧美在线播放| 国内视频一区| 五月天六月丁香| 日本免费精品视频| h视频网站在线观看| 51vv免费精品视频一区二区| 热久久免费视频| 精品福利一区二区| 日韩在线观看免费网站 | 欧美视频在线观看免费网址| 中文字幕免费精品一区高清| 风间由美久久久| 国产精品区在线| 在线观看免费av片| jizz在线免费观看| 自拍偷拍精品| 成人精品亚洲人成在线| 欧美美女bb生活片| 国产www精品| 欧美日韩性生活片| 九九热精品在线观看| 精品亚洲综合| 一区二区三区四区在线看| 成人av在线一区二区三区| 欧美日韩高清一区二区不卡| 日韩免费观看视频| 黄色片一级视频| 亚洲午夜18毛片在线看| 成人在线观看免费网站| 99久久久久| 国产精品二区一区二区aⅴ污介绍| 亚洲欧美国产另类| 久久久一本精品99久久精品| 在线看黄色的网站| 欧美在线 | 亚洲| 色播一区二区| 99久久国产综合精品色伊| 精品国产免费一区二区三区香蕉| 444亚洲人体| 国产真实乱人偷精品| 亚洲aaa在线观看| 凹凸av导航大全精品| www.亚洲在线| 亚洲色图第三页| 亚洲精品久久久久久一区二区| 国产精品无码无卡无需播放器| 一二三区在线观看| 最近国产精品视频| 国产精品久久福利| 久久成人这里只有精品| 成人性生活视频免费看| 奇米影视第四色777| 久草在线资源站手机版| 久久久久免费| 91精品国产入口| 国产精品综合久久久久久| 成人无码www在线看免费| 亚洲精品套图| 伊人久久大香线蕉综合四虎小说| 亚洲一区电影777| 国产999精品久久久影片官网| 中文字幕在线综合| 欧美一级一区二区三区| 台湾亚洲精品一区二区tv| 国产精品成人网| 97超碰国产精品女人人人爽| 91香蕉视频污版| 黄色美女一级片| 亚洲精品推荐| 一区二区三区美女视频| 国产激情999| 艳妇乳肉亭妇荡乳av| 奇米影视888狠狠狠777不卡| 91av精品| 欧美日韩国产高清一区二区三区| 国产成人亚洲欧美| 国产午夜精品理论片| 国产啊啊啊视频在线观看| 蜜臀av在线播放一区二区三区| 日韩一级大片在线| 亚洲欧美综合一区| 亚洲婷婷综合网| 99久久99九九99九九九| 国产欧美一区二区精品性色| 91极品女神在线| 国产情侣久久久久aⅴ免费| 神马电影在线观看| 在线成人av| 精品国产乱码久久| 300部国产真实乱| 国产又粗又猛又黄又爽| 网红女主播少妇精品视频| 亚洲二区在线视频| 动漫美女被爆操久久久| 91porn在线视频| 国产欧美自拍| 国产精品久久一卡二卡| 国产精品成熟老女人| 国产成人无码精品久久二区三| 午夜dj在线观看高清视频完整版| 久久电影网电视剧免费观看| 色综合伊人色综合网| 亚洲精品20p| 国产尤物视频在线| 日韩在线一区二区三区| 中文字幕综合一区| 男人的天堂最新网址| 黄色片视频在线观看| 日韩精品视频网| 中文字幕不卡av| 成人亚洲免费视频| 成年人视频免费在线观看| 日本中文一区二区三区| 综合av色偷偷网| 一级黄色免费毛片| 国产鲁鲁视频在线观看特色| 国产盗摄一区二区三区| 欧美一级片在线播放| 中文字幕免费视频| 亚洲高清黄色| 亚洲色欲色欲www在线观看| 99蜜桃在线观看免费视频网站| 精品小视频在线观看| 国产精品自在线拍| 欧美性一级生活| 艳母动漫在线免费观看| 国内爆初菊对白视频| 亚洲午夜黄色| 色青青草原桃花久久综合| 岛国av在线免费| а√天堂官网中文在线| 99r国产精品| 91香蕉亚洲精品| 亚洲免费在线视频观看| 九九在线精品| 亚洲精品一线二线三线 | 欧美一区久久久| 亚洲欧美区自拍先锋| 欧美一区二区视频17c| 国产孕妇孕交大片孕| 国产一区日韩欧美| 北条麻妃一区二区三区中文字幕 | 91av在线免费观看| 黑鬼狂亚洲人videos| 成人av地址| 欧美一区二区在线免费播放| 北条麻妃69av| 91香蕉在线观看| 国产精品国产三级国产三级人妇 | 亚洲精品国产品国语在线app| 欧美人xxxxx| 国产香蕉在线观看| 久久成人免费电影| 国产精品99久久久久久久久| 青青草成人av| 在线精品国产| 久久久精品久久久| 婷婷综合在线视频| 麻豆成人入口| 亚洲精品福利免费在线观看| 日本人dh亚洲人ⅹxx| 成人网ww555视频免费看| 一本一道久久a久久精品 | 中文字幕日韩经典| 欧美亚洲一区二区三区| 97在线观看视频| 午夜精品三级久久久有码| 先锋资源久久| 久久久精品免费视频| 免费视频网站www| 国产精品99在线观看| 久久综合亚洲社区| 成人免费精品动漫网站| 日韩在线二区| 久久亚洲精品成人| 国产一级片久久| 欧美日韩国产亚洲一区| 孩xxxx性bbbb欧美| 特级做a爱片免费69| 在线视频精品| 国产精品久久久久久久久久东京| 亚洲图片欧美日韩| 老**午夜毛片一区二区三区| 国产美女91呻吟求| 成人av手机在线| 不卡一区二区中文字幕| 日本视频一区二区在线观看| 韩国三级在线观看久| 亚洲视频综合在线| 欧美国产激情视频| 精品国产第一福利网站| 欧美一区二区三区免费大片| www.17c.com喷水少妇| 老司机精品在线| 日韩一区二区欧美| 日本少妇bbwbbw精品| 久久一综合视频| 亚洲最大福利视频| 中文字幕免费在线视频| 国产精品美女久久久久久久| 青青青青在线视频| 手机在线观看av| 6080yy午夜一二三区久久| 中国极品少妇videossexhd| 先锋影音国产精品| 欧美日本黄视频| 中文字幕无线码一区 | 国产精品一区二区av| 少妇激情av一区二区| 亚洲男同性恋视频| 少妇人妻互换不带套| 国产精品视频首页| 尤物yw午夜国产精品视频明星| 久久久久久久极品内射| 日本午夜精品一区二区三区电影| 鬼打鬼之黄金道士1992林正英| 免费播放片a高清在线观看| 一区二区激情小说| 成人三级做爰av| 日韩一区自拍| 国产精品人成电影| 色婷婷中文字幕| 亚洲天堂福利av| 在线能看的av网站| 精品中文一区| 欧洲成人性视频| 国产91久久久久蜜臀青青天草二| 综合久久久久久久| 国产女同无遮挡互慰高潮91| 亚洲国产精品嫩草影院久久av| 国内外成人免费激情在线视频| 亚洲第一免费视频| 成人欧美一区二区三区黑人麻豆| 国产又黄又猛又粗又爽的视频| 欧美美女在线直播| 欧美在线视频一区二区| 亚洲aaaaaaa| 丰满岳妇乱一区二区三区| 免费成人蒂法网站| 影音先锋亚洲电影| 极品尤物一区二区三区| 国产在线拍揄自揄拍视频| 日韩欧美一区在线| 伊人国产在线观看| 福利视频网站一区二区三区| 男女日批视频在线观看| 国语精品视频| 68精品久久久久久欧美| 日韩写真在线| 日本韩国欧美国产| 天堂网av2018| 国产综合色视频| 日韩极品视频在线观看| 999精品视频在这里| 7777精品久久久久久| 污黄视频在线看| 色婷婷综合久久久中文字幕| 亚洲黄色网址大全| 国产一区三区三区| 欧美日韩激情视频在线观看| 啄木系列成人av电影| 91在线观看免费| av大片在线| 一区二区三区四区精品| 精品人妻一区二区三区换脸明星 | 六月婷婷一区| 亚洲欧美日韩电影| 91精品国产乱码久久久久久久久| 久久中文字幕免费| 久久色中文字幕| 日本黄色www| 一区二区日韩免费看| 综合操久久久| 国产精品主播在线观看| 国产精品丝袜高跟| 欧美性猛片xxxxx免费中国| 国产一区二区三区四区福利| 免费国产羞羞网站视频| 在线观看一区二区视频| 国产在线观看99| 久久精品视频网| 老司机午夜免费福利| 麻豆精品国产传媒mv男同| 国产精品久久三区| 一区二区三区www| 六月丁香色婷婷| 欧美三级视频在线观看|