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If we observe carefully, we van find that most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it’s a chance in million. People have made a census(普查)to colours of more than four thousand kinds of flowers and discovered that only eight of them are black. Why?
As we know, sunlight is formed by seven different kinds of coloured light. The wave length of each light changes, so the quantity of heat in each light changes, too. Flowers, especially their petals(花瓣), are very delicate(纤弱) and prone(易于) to the harm caused by high temperature. Black flowers can take in all the light waves, which cause the flowers to dry up in a high temperature. So black flowers can rarely survive sunlight. But red flowers, orange flowers and yellow flowers can protect themselves from sunlight by reflecting the red light, orange light and yellow light, each of which has a large quantity of heat.
That is why red, orange and yellow flowers are very common in nature while black flowers are so rare.
小题1:We can hardly find black flowers because  _____.
A.they are so weak that it’s difficult for them to grow up
B.there are no black flowers in the world.
C.the petals of black flowers are very delicate
D.they can take in the light of all wave lengths, which make the flowers dry up
小题2: Sunlight is formed by _____.
A.many different kinds of coloured light
B.three different kinds of coloured light—red, orange and yellow
C.seven different kinds of coloured light
D.four thousand kinds of coloured light
小题3:The red, orange or yellow light contains _____.
A.less heat than the other lightsB.more heat than the other lights
C.a great deal of heatD.a little heat
小题4:“It is a chance in a million” means_____________
A.it is commonB.it is extremely rareC.it’s luckyD.it’s impossible

小题1:D小题1:C小题1:C小题1:B
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科目:高中英语 来源:不详 题型:完形填空

完形填空 (共20小题;每小题l分,满分20分)
When Andra Rush started her trucking company, all she had was an old van,two used pick-up trucks and the simple certainty of a 23-year-old girl. But she planned to make her fortune in about four years to   36  her true goal: dealing with poverty on Native American reservations across North America. "I thought I could retire by the time I was 27," says Rush, "At that age, you don't know  37  you don't know."
Rush is 49 now and  38  working hard. Her tiny start-up just outside Detroit has  39  to a $400 million North American business. Today Rush is a(an)  40  not only for Native Americans but also for women in the male-controlled world of trucking.
Rush was  41 30 miles outside Detroit. When the teenage Rush visited the reservation for the first time, she was  42  by the poverty and lack of hope. "I really wanted to  43  " she says.
She graduated from the University of Michigan in 1982. She took a nursing job with a 44 pay and then practiced at an air goods company, 45 the speed of package pickups and deliveries made a little more a little more profits. "I thought I could do that 46 ," Rush says.
Within six months, Rush had ten employees, and clients(客户)  47 Ford and GM were paying her to 48 small packages from the airport. Ford was the first to offer her a job trucking parts between its plants and supplier.
By 2001, many of Rush's 1,000 employees were Native Americans, working alongside people of every    49  But she felt she hadn't done enough. 50  she joined forces with a Canadian parts maker to design and gather auto components.
She located the plants near reservations, 51 opportunities where they were needed most. By 2009, her auto parts business was earning $370 million   52  .
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A.makeB.accomplishC. receiveD.arrive
小题2:
A.whatB.whichC.whyD.who
小题3:
A.soB.somehowC.stillD.anyhow
小题4:
A. grownB.becomeC.gotD.gone
小题5:
A.able housewifeB.ordinary womanC.role modelD.truck driver
小题6:
A.broughtB.livedC.risen D.raised
小题7:
A.movedB.interestedC.struckD.encouraged
小题8: A have an influence           B.make a difference  C.set an example   D.make a decision
小题9:
A.lowB.highC.cheapD.expensive
小题10:
A.whichB.thatC.whenD.where
小题11:
A.wellB.badlyC.worseD.better
小题12:
A.likeB.besidesC.forD.except
小题13:
A.takeB.fetchC.bringD.lift
小题14:
A.educationB.familyC.backgroundD.city
小题15:
A.BecauseB.ForC.ButD.So
小题16:
A.seizingB.creatingC.graspingD.losing
小题17:.
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小题18:
A.inexperiencedB.experiencedC.expertD.skilled
小题19:
A.enjoyB.hateC.doubtD.refuse
小题20:
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科目:高中英语 来源:不详 题型:阅读理解

Did you know that there are gifts that will multiply your happiness when you give them away? Here are five of those gifts. Giving these gifts will allow you to share with others your most unique treasure: your real self. Each gift will return to you many times.
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科目:高中英语 来源:不详 题型:阅读理解

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科目:高中英语 来源:不详 题型:阅读理解

Vans, Keds, Dollies—they sound like the names of rock bands, but if you have teenagers, you'll know they're actually the latest in teenage footwear.
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KEDS/VANS
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WEDGES AND STILETTOS
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科目:高中英语 来源:不详 题型:阅读理解

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A.an identification card B.an access card
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A.He makes an unreasonable search of your home and gets the evidence.
B.He is allowed to search your home with no warrant and finds proof of crime.
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D.He obtains the information from you when you are alone with him.
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科目:高中英语 来源:不详 题型:阅读理解

Some years ago, on a hot summer day in south Florida, a little boy decided to go for a swim in the old swimming hole behind his house. He flew into the water, not realizing that as he swam toward the middle of the lake, an alligator (美洲鳄) was swimming toward the shore.
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Hearing his voice, the little boy became alarmed and made a U – turn to swim to his father. It was too late. Just as he reached his father, the alligator reached him. From the dock, the father grabbed his little boy by the arms just as the alligator snatched his legs. That began an incredible tug – of – war (拔河) between the two. The alligator was much stronger than the father, but the father was much too passionate to let go. A farmer happened to drive by, took aim and shot the alligator.
Remarkably, the little boy survived. His legs were extremely scarred by the vicious attack of the animal. And, on his arms, were deep scratches where his father’s fingernails dug into his fresh in his effort to hang on to the son he loved.
The newspaper reporter who interviewed the boy asked if he would show his scars. The boy lifted his pant legs. And then, he said to the reporter, “But look at my arms. I have great scars on my arms, too. I have them because my dad wouldn’t let go.”
You and I can identify with that boy. We have scars, too. No, not from an alligator, but the scars of a painful past. Some of those scars are unsightly and have caused us deep regret. But, some wounds, my friend, are because someone has refused to let go. In the midst of your struggle, someone has been there holding on to you.
If you have the scars of someone’s love on your arms, be very, very grateful. Someone in your life did not and will not ever let you go.
Never judge another person’s scars, because you don’t know how they got them.
小题1: Which of the following is the most closely related to the underlined word “passionate”?
A.determinedB.anxiousC.frightenedD.courageous
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A.painful and fearfulB.regretful and panic
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小题3:In the story the writer intends to tell us that     .
A.scars always remind people of their past experiences
B.wounds in the mind are more painful than those in the body
C.a painful past always leaves scars on a person’s mind
D.scars do not necessarily mean pain at all times
小题4:Which of the following viewpoints will the writer most probably agree with?
A.Be grateful to a painful past, for you can always learn something from it.
B.Other people’s criticism or blame may hurt you, but if it is for your own good, you should take it thankfully.
C.The swimming hole of life is filled with danger, but you don’t need to be too serious about it as someone will never let you go.
D.If someone hurts you, be grateful to them, for they mean no harm

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