A.they can eat its parasites |
B.they consider the sheep as their shelter |
C.they enjoy traveling with the sheep |
D.they find the position most comfortable |
A.birds and parasites | B.sheep, birds and parasites |
C.parasites and sheep | D.birds and sheep |
A.comfort | B.light | C.oxygen | D.food |
A.Some plants depend on each other for food. |
B.Some animals and plants develop their relationship easily. |
C.Some animals and plants depend on each other for existence. |
D.Some animals live better together. |
科目:高中英語 來源:不詳 題型:閱讀理解
A.a(chǎn)n artist | B.a(chǎn) company | C.a(chǎn) mobile | D.a(chǎn)n exhibition |
A.in the exhibition |
B.from Mr Miles |
C.when they are mass produced |
D.a(chǎn)fter they recycle the gadgets |
A.promote the technology of IT |
B.enable people to talk to their hands |
C.raise people’s awareness of recycling |
D.a(chǎn)ttract visitors’ attention in the exhibition |
A.New mobiles that are fashionable. |
B.Outdated handsets that are upgraded. |
C.Outdated gadgets that can be used for recycling. |
D.New gloves that can be used for making phone calls. |
查看答案和解析>>
科目:高中英語 來源:不詳 題型:閱讀理解
A.Most long-living people have special long-life-related genes. |
B.Ninety percent of the participants lived to 100 years of age. |
C.All the long-living people have only one signature genetic cluster. |
D.Scientists know how the integration of the genes helps people live long. |
A.most people living extremely long benefit from not smoking |
B.living longer just depends on certain genetic recipes |
C.environmental factors play an important role in long-living |
D.being mentally active has nothing to do with living an old age |
A.Remaining socially engaged helps a person to live long. |
B.A genetic recipe can accurately predict who may live to 100 and beyond. |
C.Perls is the first to think living longer is just a matter of genes. |
D.The older he gets, the more likely the genes contribute to his extended years. |
A.Genes May Predict Who Lives to 100 | B.Environment And Genes |
C.Genes, the Secret of Long Living | D.Lifestyle And Genes |
查看答案和解析>>
科目:高中英語 來源:不詳 題型:閱讀理解
A.harm its own purpose by becoming too popular |
B.save the environment by becoming more popular |
C.harm its own purpose by becoming less popular |
D.save the environment by becoming less popular |
A.has no single, clear definition that would satisfy everybody |
B.has expanded less rapidly than other types of tourism |
C.claims that no comfortable hotels should be used by tourists |
D.most often has a negative effect on local culture |
A.tourists were free to visit the gorillas whenever they wanted to |
B.local people’s attitudes toward animals were not affected |
C.the gorillas were protected from both tourists and local people |
D.the gorillas’ living area was modernized because of the high admission |
A.Rwanda’s Mountain Gorilla Project | B.Preservation Corporation |
C.Australia’s grading system | D.Dolphin-feeding |
查看答案和解析>>
科目:高中英語 來源:不詳 題型:閱讀理解
A.In the space station. | B.In the spaceship. |
C.Using a camera system. | D.Teaming up with astronauts. |
A.Computer. | B.Recorder. | C.Telephone. | D.Radios. |
A.University students' controlling the camera system. |
B.University students' operating the camera system. |
C.University students' related activities from the ground. |
D.University students' investigating Earth from space. |
A.The astronauts. | B.The students. |
C.The investigation developers. | D.The teachers. |
A.DR.Sally Ride explains the details of EarthKAM |
B.Why the team at EarthKAM posts these photographs online. |
C.EarthKAM provides a viewpoint that the astronauts have. |
D.Brion Au explains the details of EarthKAM. |
查看答案和解析>>
科目:高中英語 來源:不詳 題型:閱讀理解
A.Huntingdon Life Sciences | B.Improvement in technologies |
C.Animal-fights militants | D.Scientists Alan and Thomas |
A.a(chǎn)nimals shouldn’t be used in toxicology testing |
B.a(chǎn)nimals should enjoy equal rights with human beings |
C.a(chǎn)nimals should live wildly and freely |
D.we should protect animals from being killed casually |
A.the use of animals in testing has been stopped abruptly |
B.a(chǎn)nimal substitutes are not preferable |
C.supervising standards contribute to the continued use of animals in testing |
D.only Huntingdon Life Sciences is accused |
A.Saving animals and people. |
B.The new trend in toxicology testing |
C.The use of animals in testing is against human nature |
D.New technology changes the fate of animals |
A.a(chǎn)rbitrary(武斷的,隨意的) | B.pessimistic |
C.indifferent(不關(guān)心的 ) | D.optimistic |
查看答案和解析>>
科目:高中英語 來源:不詳 題型:閱讀理解
A.the changing of the weather in southern Africa |
B.the warming of waters in the Pacific Ocean |
C.the weather which brings drought(旱災(zāi))to Africa |
D.the weather phenomenon(現(xiàn)象)that brings heavy rains to Africa |
A.they can provide a kind of early warning to the place that will suffer from drought |
B.they can tell why Zimbabwe has little or no rain |
C.they can do some research work in this field. |
D.they can put all this information into their computers. |
A.Scientists come to understand how El Nino appears. |
B.Three scientists from the USA work on this subject. |
C.Southern Africa suffered a serious drought and many people died from hunger. |
D.El Nino has something to do with Zimbabwe’s poor crops. |
A.The computer is used in this research work. |
B.Scientists know when an El Nino appears by means of the computer program. |
C.The scientists published their results of the research work. |
D.Nature is the name of the article written recently by the scientists. |
A.Appearance of El Nino is Predictable(可預(yù)測的) |
B.Drought in Zimbabwe |
C.Early Warning System |
D.Weather in Africa |
查看答案和解析>>
科目:高中英語 來源:不詳 題型:閱讀理解
How to Study Smarter, Not HarderA.saying things out aloud | B.taking notes |
C.studying the middle | D.sleeping on it |
A.underline important notes |
B.write notes in your own words |
C.take down every detail |
D.write as quickly as possible |
A.study after a period of activity |
B.do some exercise after studying |
C.study as soon as you get up |
D.study before going to sleep |
A.Thinking about an idea in different ways. |
B.Relating ideas and concepts with what you already know. |
C.Reading from the beginning to the end without stop. |
D.Going back to what first made you confused and start again. |
查看答案和解析>>
科目:高中英語 來源:不詳 題型:閱讀理解
If blood is red, why are veins (靜脈) blue? Actually, veins are not blue at all. They are more of a clear, yellowish color. Although blood looks red when it’s outside the body, when it’s sitting in a vein near the surface of the skin, it’s more of a dark reddish purple color. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison. Which works harder, your heart or your brain? That kind of depends on whether you’re busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker(超級油輪). But, in the long run, your brain probably tips it, because even when you’re sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it. Why do teeth fall out, and why don’t they grow back in grown-ups? Baby (or “milk”) teeth do not last long; they fall out to make bigger room for bigger, stronger adult teeth later on. Adult teeth fall out when they become damaged, decayed(腐爛)and infected by bacteria. Once this second set of teeth has grown in, you’re done. When they’re gone, they are gone. This is because nature figures you’re set for life, and what controls regrowth of your teeth switches off. Do old people shrink(收縮)as they age? Yes and no. Many people do get shorter as they age. But, when they do, it isn’t because they’re shrinking all over. They simply lose height as their spine (脊柱) becomes shorter and more curved due to disuse and the effect of gravity (重力). Many (but not all) men and women do lose height as they get older. Men lose an average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again? No, because old people don’t really shrink! It is not that they are growing backwards—their legs, arms and backbones getting shorter. When they do get shorter, it’s because the spine has shortened a little. Or, more often, become more bent and curved. Why does spinning make you dizzy)? Because your brain gets confused between what you’re seeing and what you’re feeling. The brain senses that you’re spinning using special gravity-and-motion-sensing organs in your inner ear, which work together with your eyes to keep your vision balance stable. But when you suddenly stop spinning the system goes out of control, and your brain thinks you’re moving while you’re not. Where do feelings and emotions come from? Mostly from an ancient part of the brain called the limbic system(邊緣系統(tǒng)). All mammals have this brain area — from mice to dogs, cats, and humans. So all mammals feel basic emotions like fear, pain and pleasure. But since human feelings also involve other, newer bits of the brain, we feel more complex emotions than any other animal on this planet. If exercise wears you out, how can it be good for you? Because our bodies adapt to everything we do to them. And as far as your body is concerned, it’s “use it, or lose it”! It’s not that exercise makes you healthy, it’s more that a lack of exercise leaves your body weak and easily affected by disease. |
A.Blue | B.Light yellow |
C.Red | D.Dark reddish purple |
A.Because their spine is in active use. |
B.Because they are more easily affected by gravity. |
C.Because they keep growing backwards. |
D.Because their spine becomes more bent. |
A.In the long run, our brain probably works harder than our heart. |
B.When our brain senses the spinning, we will feel dizzy. |
C.The brains of the other mammals are as complex as those of humans. |
D.Our feelings and emotions come from the most developed area in our brain. |
A.To give advice on how to stay healthy. |
B.To provide information about our body. |
C.To challenge new findings in medical research. |
D.To report the latest discoveries in medical science. |
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com