. That light rail transit line(轻轨), __ _in July 2009 and ___ in 2012, will be China’s longest light rail transit line in history.
A. starting, completing B. started, to be completed
C. to start, completed D. starting, completed
科目：高中英语 来源：2013-2014学年广东省“十二校”高三第二次联考英语试卷（解析版） 题型：阅读理解
A black hole is a place in space where gravity pulls so much that even light cannot get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.
Because no light can get out, people can’t see black holes. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently from other ones.
Black holes can be big or small. Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain. Mass is the amount of matter, or “staff”, in an object.
Another kind of black hole is called “stellar”(星球黑洞). Its mass can be up to 20 times more than the mass of the sun. There may be many stellar mass black holes in Earth’s galaxy. Earth’s galaxy is called the Milky Way.
The largest black holes are called “supermassive”(超大质量黑洞). These black holes have masses that are more than one million suns together. Scientists have found proof that every large galaxy contains a supermassive black hole at its center. The supermassive black hole at the center of the Milky Way galaxy has a mass equal to about four million suns and would fit inside a very large ball that could hold a few million Earths.
Scientists think the smallest black holes formed when the universe began. Stellar black holes are made when the center of a very big star falls in upon itself, or falls apart. When this happens, it exploded part of the star into space. Scientists think supermassive black holes were made at the same time as the galaxy they are in.
A black hole can not be seen because strong gravity pulls all of the light into the middle of the black hole. But scientists can see how the strong gravity affects the stars and gas around the black hole. Scientists can study stars to find out if they are flying around, or orbiting a black hole.
When a black hole and a star are close together, high-energy light is made. This kind of light cannot be seen with human eyes. Scientists use satellites and telescopes in space to see the high-energy light.
1.The gravity of a black hole may become so strong that light cannot get out when ____________.
A. the star is going to die
B. special tools are used on it
C. other stars come close to it
D. it is seen from the space telescopes
2.According to the passage, which of the following is NOT true?
A. A black hole can be very tiny but extremely heavy.
B. The gravity of a black hole holds all light in its center.
C. Scientists observe high-energy light through their own eyes.
D. Some small black holes came into being as early as the universe.
3.The underlined word “galaxy” in Paragraph 5 means __________.
A. a black hole B. the Milky Way
C. a series of stars D. a planet near the earth
4.What does the last sentence in Paragraph 5 suggest?
A. Neither the sun nor the earth is as heavy as a black hole.
B. There is a supermassive black hole at the center of the Milky Way.
C. The supermassive black hole had existed before the Milky Way was formed.
D. There is a reason why the large black holes are called “supermassive”.
5.The last two paragraph mainly focus on the question of _________.
A. what a black hole is
B. how black holes form
C. how big black holes are
D. how scientists know about black holes
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科目：高中英语 来源：2013-2014学年吉林省九校联合体高三第二次摸底考试英语试卷（解析版） 题型：阅读理解
Dining in a completely dark room, unaware what’s on your plate while sitting next to a complete stranger may not sound like an ideal restaurant experience but it’s certainly an intriguing way to spend a rainy night in London.
Dans le Noir, close to London’s financial district, is a restaurant full of blind waiters and waitresses who become your eyes around the restaurant, whose original Paris branch opened in 2004.
In the bar with the light, you choose whether you want the fish, meat or vegetable, but the dishes themselves remain a secret, as do the ingredients of the “surprise” cocktails. Bags, coats and devices(设备)that light up, including watches and mobile phones, are kept in the bar. Placing your hand on the shoulder of your guide, you are led to a table in a black dining room that sets up to 60 people. And it is dark.
The waiters tell you when the food is being placed down in front of you, then the fun begins, trying to get food into your mouth, then identifying just what it is that’s on your plate, and finally whether you have missed any of it.
It’s also a great chance to break social convention and eat using your fingers. Those same fingers are also the only way you can tell how much wine you’re pouring into your glass.
The happy atmosphere in the dining room also made the night memorable. You can’t really avoid talking to the person next to you at the long tables and guessing what the dishes are certainly provides adequate fuel for the conversations.
All will be revealed at the end of the meal when you are led back out into the lit bar. Not only do you finally get to see what you’ve just been eating but also who you’ ve been talking to for the last 90 minutes.
1.What does the underlined word “intriguing.” in the first paragraph mean?
A terrible B. interesting C. expensive D. new
2.According to the text, “ Dans le Noir”__________.
A is far from London’s financial district
B has its first branch opened in Britain
C is very popular among blind customers
D has a dining room which can seat up to 60 people
3.We know from the text that the customers in “Dans le Noir”_________.
A. are forbidden to eat with their fingers
B. can talk to the strangers at table
C. will book the menu in a dark bar
D. can take their mobile phones into the dining room
4.What’s the main purpose of the text?
A. To help blind people find a job in restaurants.
B. To show how to open a restaurant with a new idea.
C. To show how to enjoy the time in a dark restaurant.
D. To introduce and attract customers to “Dans le Noir ”.
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科目：高中英语 来源：2013-2014学年山西省高二8月月考英语试卷（解析版） 题型：阅读理解
Last night’s meteor(流星) shower left many people in the community dissatisfied and demanding answers. According to Gabe Rothsclild, Emerald Valley’s mayor, people gathered in the suburbs of the city, carrying heavy telescopes, expecting to watch the brightly burning meteors passing through the sky. What they found instead was a sky so brightened by the city’s lights that it darkened the light of the meteors passing overhead.
“My family was so frustrated,” admitted town resident Duane Cosby, “We wanted to make this an unforgettable family outing, but it turned out to be a huge disappointment. ”
Astronomers—scientists who study stars and planets—-have been complaining about this problem for decades. They say that light pollution prevents them from seeing objects in the sky that they could see quite easily in the past. They call on people and the government to take measures to fight against it.
There is yet a population besides professional and amateur star observers that suffers even more from light pollution. This population consists of birds, bats frogs, snakes, etc. For example, outdoor lighting severely affects migrating(迁徙的)birds. According to the International Dark-Sky Association. “100 million birds a year throughout North America die in crashes with lighted buildings and towers. ”
Countless more animals casualties(伤亡）result from the use of artificial lighting. Clearly, people enjoy the benefits of lighting their evenings, but some scientists think it can be harmful for humans, too. They worry that exposure to light while sleeping can increase person’s chances of getting cancer.
Emerald Valley is only one community that is becoming aware of the negative effects of light pollution. For years, Flagstaff,Arizona,has enforced lighting regulations in its city in order to assist astronomers at the Lowell Observatory. Similar efforts have been made worldwide, and a movement is underway to remind us to turn off lights when we are not using them, so that other creatures can share the night.
1. What is the author concerned about according to Paragraph 4?
A. Birds may take other migration paths
B. Animals’ living habits may change suddenly
C. Varieties of animals will become sharply reduced
D. Animals’ survival is threatened by outdoor lighting
2.Lighting regulations in Flagstaff, Arizona are put into effect to
A. Lessen the chance of getting cancer
B. create an ideal observation condition
C. ensure citizens a good sleep at night
D. enable all creatures to live in harmony
3. What message does the author most want to give us?
A. Saving wildlife is saving ourselves
B. Great efforts should be made to save energy
C. Human activities should be environmentally friendly
D. New equipment should be introduced for space study
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科目：高中英语 来源：2010-2011学年河北省高一上学期第一次月考英语卷 题型：单项填空
The teacher told us that light _______ faster than sound.
A. traveled B. had traveled C. is traveling D. travels
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科目：高中英语 来源：2010届黑龙江双鸭山一中高三上学期期末考试英语试卷 题型：阅读理解
Babies born in summer are more likely to become short-sighted in late life, a study has shown.
As many as a quarter of all cases of short-sightedness are caused by too great an exposure to sunlight in the first weeks of life, say eye experts.
They are advising all parents to put sunglasses on their babies during the first weeks.
Scientists had already established that over-exposure to sunlight caused shortsightedness in animals.
Researchers who compared the months in which babies were born with whether they needed glasses later on say the principle also applies to humans.
A study of almost 300,000 young adults-the largest of its kind-showed that those born in June and July had a 25 per cent greater chance of becoming severely short-sighted than those born in December or January.
Research leader Professor Michael Belkin, of Tel Aviv University, said it was because prolonged illumination(光照) causes the eyeball to lengthen-causing short-sightedness.
Hence the more light a newborn is exposed to, the more the eyeball lengthens and the worse the short-sightedness will be.
The mechanism which lengthens the eyeball is associated with levels of melatonin(褪黑激素), a pigment (色素) which protects the skin against harmful rays of the sun.
In young babies not enough melatonin is released as protection, meaning they are more vulnerable to sunburn and changes to eyeball shape.
Sight expert Professor Daniel O’Leary, of Anglia Ruskin University in Cambridge, said “At the moment we don’t know the precise cause of why light exposure affects sight, but the evidence seems to prove that it is one of the reasons for people becoming shortsighted.”
67. Babies born in summer are more likely to be shortsighted ____________.
A. because the summer sun is too strong for babies
B. because babies born in summer have lengthened eyeballs
C. if they are exposed to much sunlight in the first weeks after they are born
D. if parents don’t know a proper way to protect their babies’ eyes
68. Melatonin is a kind of material to ___________.
A. prevent the eyes from becoming near-sighted
B. protect the skin from harmful sun rays
C. make our body strong
D. protect babies’ eyes from summer sun
69.From what Professor Daniel O’Leary says we can conclude that ___________.
A. there is no evidence that shortsightedness is related to exposure to sunlight
B. whether light exposure affects sight still needs to be further proved
C. he believes that light exposure can cause shortsightedness
D. he tries to give the cause of why light exposure affects sight
70.The underlined word “vulnerable” in the passage probably means __________.
A. easy to be harmed B. resistant
C. protective D. changeable
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