DNA(Deoxyribonucleic acid)is one of the most important discoveries in science. DNA is the plan for the human being ,as a blueprint is the plan for building. DNA makes a person look the way he does. A person’s DNA. comes from a mixing of his parents’ DNA . That’s why a child looks like his parents. But ,besides controlling things such as height and hair color,DNA can also give people diseases,Scientists are now studying DNA to cure diseases.
In the seventies, scientists developed a process called recombinant (重新组合) or RDNA. Although it sounds difficult to understand,RDNA simply means taking DNA from one animal or plant and putting it into another. By doing so , scientists can create new beings. In so doing,scientists can better understand DNA,especially what parts of DNA do what parts of DNA do what. After they understand DNA,scientists can begin to cure diseases. Often,the new being created will itself be the cure.
Besides curing diseases,RDNA research can also do other things. For example,scientists in Japan have already created“super-trees”Trees help humans,because they take CO2, which poisons humans ,from the air and turns it into oxygen, which lets humans breathe.“Super-trees” do this too,but do it much faster. As things such as cars and factories have already put much CO2 in the area,“super-trees”are badly needed.
Unfortunately,there is serious danger in RDNA research. Scientists want to create animals to cure old diseases,but these new animals may also create new diseases. It will be a serious problem if the animals escape from the science laboratory and into nature. As these animals are not natural,they may let loose many new powerful diseases.
As a result,RDNA research will create many solutions (解决方案),but it will also create many problems.
1.From the passage,we can know that a boy looks like his parents because
A.he is son of his parents
B.his parents’ DNA decides his appearance
C.he has received DNA from his father or his mother
D.scientists have put some of his parents’ DNA into him
2.What does the underlined expression “let loose”probably mean?
A.let...go free B.get rid of C.absorb D.survive
3.What is the best title for the passage?
A.The DAN Research in Japan
B.A New Way of DNA Research in Japan
C.The Causes and Effects of DNA Research
D.The Advantages And Disadvantages of RDNA
4.The following statements are true abort RDNA research EXCEPT
A.the research has been stopped because the created animals carry virus
B.super-trees might be widely planted around the world
C.scientists have not completely understood DNA
D.RDNA research will benefit human beings a lot
科目:高中英语 来源: 题型:阅读理解
阅读短文,根据所读内容在文后1-10的空格里填上适当的单词或短语,每空不超过三个单词。
Everybody has lied on some occasion in life. However, compulsive(上瘾的)lying is different. A compulsive liar has no control over his lying habit. It is very uncomfortable for him to speak the truth. He lies on both major and small issues. Compulsive liars lie out of habit and even on issues where lying does not benefit them. A compulsive liar is also called a habitual liar.
A compulsive liar is not nervous at times. He lies with strong self-confidence. However, you could find evidence that he is lying, which is easy because he always lies. If a person tries to speak out irrelevant details or offer explanations which aren’t necessary when he’s asked a particular question, he’s attempting to hide certain facts. Also you can look at his body language for signs of lying. If he has crossed his arms he might be hiding certain facts from you. If he is blinking(眨眼)frequently then chances are high he is lying. Another sign is he will never admit the truth even when faced with strong evidence.
The consequence of compulsive lying is that no one trusts him any more. It could have far reaching consequences on his job, relationships and friends. It is a terrible cycle, which can alienate(疏远)the very people who are dear to him.
The cure for this condition is that the person affected should take the initiative. He has to meet a psychologist and/ or a psychiatrist(精神病医生). The psychiatrist will prescribe the needed medicine. The psychologist will analyze why this behavior is happening. Hypnosis(催眠)is a possible solution to this problem. Fortunately this is a treatable condition.
Title:1. ________________________
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科目:高中英语 来源: 题型:
假设你参加了你校组织的“关爱生命 携手‘艾滋’儿童”的活动。请你根据以下信息,写一篇英文日记,叙述活动情况。
[写作内容]
活 动 安 排 | 内容 | 1.时 间:2007年12月1日 星期六8:30 启程, 共进午餐后返回 |
2.地 点:校门口集中,一个半小时自行车车程 目的地:红十字会医院 | ||
3.活 动:亲切交谈、牵手跳舞、赠送礼物、拍照留念 | ||
感受 | …… |
[写作要求]
只能使用5个句子表达全部的内容。
注意:日记的开头已写好。
December 1st Saturday 2007 Fine_________
——————————————————————————————————————————————————————————————————————————————————————————————————————————————————
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科目:高中英语 来源: 题型:
假设你是李华,用英语给你在美国的笔友Peter写一封短信,根据下面三幅图介绍学生的课外生活,课余活动和社会实践活动,并写出你的感受(收获)以及你对整个课外生活的看法。题目已经给出。字数:100左右。
My Out-of-class Activities
Dear Peter
Best wishes
Li Hua
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科目:高中英语 来源: 题型:阅读理解
Where the Wild Things Are by Maurice Sendak
List Price: $16.95 Price:$14.35
Where the Wild Things Are is one of those truly rare books that can be enjoyed equally by a child and a grown-up. Max puts on his wolf suit, trying to do something bad and gets sent to bed without supper. Quite by accident, a forest grows in his room, allowing his wild behaviour to continue. Sendak's color illustrations(插图)are beautiful, and each turn of the pages brings the discovery of a new wonder.
Goodnight Moon by Margaret Wise Brown
List Price:$17.95 Price:$ 10.77
Perhaps the perfect children's bedtime book. Goodnight Moon is a short poem of goodnight wishes from a young rabbit preparing for his own sleep. He says goodnight to every object in sight. Clement Hurd's illustrations are simple and effective.
Happy Birthday, Body by Dr. Smith
List Price:$9.99 Price:$9.99
The Great Birthday Bird says, "Get dressed! Today is your day. It's the Best of the Best!" This fun-filled book can be touched, moved, and smelt, helping babies celebrate their day of all days with the Great Birthday Bird! It's illustrated by Jan Gerardi.
You 're Only Old Once! by Dr. Seuss
List Price: $11.70 Price: $10.53
If laughter is the best medicine, then You're Only Old Once! is a delightful new defer against aging. As we follow him through his checkup with the experts at the Golden Years Clinic, Dr. Seuss lightens the aches and pains of growing old with his unique wisdom. A perfect gift for anyone over fifty!
1.If you buy the books above, whose book will save you most?
A.Maurice Sendak's. B.Dr. Smith's.
C.Dr. Seuss's. D.Margaret Wise Brown's.
2.You 're Only Old Once! talks mainly about _____.
A.the happy time with the Great Birthday Bird
B.the adventure of a naughty boy named Max
C.some suggestions about reducing pains of aging
D.the goodnight wishes of a rabbit before sleep
3.The pictures in Happy Birthday, Baby are made by _____.
A.Jan Gerardi B.Clement Hurd
C.Sendak D.Margaret Wise Brown
4.Which book is suitable for both kids and adults?
A.Happy Birthday, Baby. B.Where the Wild Things Are
C.Goodnight Moon. D.You 're Only Old Once!
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科目:高中英语 来源: 题型:
—Don’t you go to school?
—_____
A.Yes, I am going to. B.No, I work
C.Yes, I study at home. D.No, to the cinema
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科目:高中英语 来源: 题型:阅读理解
Are you always busy? Is your schedule hectic? Do you sometimes forget to take time to eat? If you answered“yes”to any of these questions, then you need QUICKEATS HEALTHY EATING THAT FITS YOUR DAILY ROUTINE.
Vacuum-sealed meals for people on the go ! Nutritious , low-sugar , low-fat, well-balanced meals in a convenient pocket! They don’t spoil! Are you in the mood for a hot meal? Or do you prefer a cold dish instead? Hot or cold , Quickeats are delicious and the tempting taste will have you believing you are eating a home-cooked meal. A variety of meals are already available at leading grocery stores in your area. Try our Red Hot Quickeats! (Heat in a microwave for 3 minutes.) Stew with Garden Vegetables Barbecued chicken and Rice Creamy Ham and Noodles Choose one of our Cool Blue Quickeats! (Refrigerate for extra coldness, if desired.) Yogurt with Dried Fruit and Nuts Vegetable Salad and Pasta Salad Tuna Salad and Whole Wheat Crackers. Quickeats are reasonably priced and ready to eat. Take the coupon(优惠券) below to a participating store to receive a free Red Hot or Cool Blue container that will fit neatly in your backpack , briefcase , or shoulder bag and keep your Quickeats meal hot or cold until you’re ready to eat it .Each container holds up to 4 Quickeats . If you have questions or suggestions, please contact our national office: Neavest Inc. , P. O Box. 90210, lexinet, VA or call 1-888-293-3151 √One Free container for Quickeats with purchas Quickeats meal. |
1.This advertisement is designed especially for those who .
A.like eating in restaurants B.have little time
C.prefer home-cooked meals D.want to save money
2.What information CAN’T we get from the advertisement about Ouickeats?
A.different kinds. B.High quality,
C.Exact prices. D.Good taste.
3.Which of the following can be cooled in a refrigerator before eating according to the ads?
A.Pasta Salad. B.Dried Fruit.
C.Noodles. D.Nuts.
4.What can we learn from the advertisement?
A.Get one Ouickeats container and you’ll have four Ouickeats to eat.
B.Take one coupon and you can eat freely in a participating store.
C.Buy one coupon and you’ll get a free Quickeats.
D.Buy one Quickeats and you’ll get a container.
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科目:高中英语 来源: 题型:阅读理解
CBC is a famous air company which has over twenty planes carrying passengers and goods, flying along 12 fixed lines all over the world. Its service is very good but some passengers are still not satisfied with it and that is why in 2006 and 2007 the company received letters of complaints from consumers or passengers who pointed out over a dozen kinds of problems which are divided in groups in the following table. Those about passengers’ things carried by the plane are Baggage problems. Customer service which refers to service work with passengers are not satisfactory. Oversales of seats are about the fact that more seats are sold and as a result the plane is too crowded to be safe. Refund problems appear when passengers fail to receive the money paid back to them because of what they have lost. Fares are problems about the price of tickets.
Consumer Complaints Received By the CBC
Category | 2006 | 2007 |
Flight problems | 20.2% | 22.1% |
Baggage | 18.3% | 21.8% |
Customer service | 3.1% | 11.3% |
Oversales of seats | 10.5% | 11.8% |
Refund problems | 10.1% | 8.1% |
Fares | 6.4% | 6.0% |
Reservation & Ticketing | 5.8% | 5.6% |
Tours | 3.3% | 2.3% |
Smoking | 3.2% | 2.9% |
Advertising | 1.2% | 1.01% |
Credit | 1.0% | 0.8% |
Special passengers | 0.9% | 0.8% |
Others | 6.0% | 5.3% |
Total Number of Complaints | 2,988 | 1,792 |
1.By about what percent did the total number of complaints decrease from 2006 to 2007?
A.40% B.60% C.75% D.100%
2.If the circle graphs below show total consumer complaints for 2006, which graph shows a dark part that is about Flight problems and Refund problems together?
3.Which of the following statements can be inferred from the table?
a.In 2006 and in 2007, complaints about Flight problem, Baggage, and Customer service together took about 50 percent of all consumer complaints received by the CBC Company.
b.The number of Special passengers complaints was unchanged from 2006 to 2007.
c.From 2006 to 2007 the number of Flight problem complaints increased by more than 2 percent.
A.only a B.only b C.a and b D.a and c
4.From the passage we can know that .
A.customers are not satisfied with CBC
B.sometimes CBC sells more tickets than its plane’s fixed seats
C.CBC has more than twenty planes which fly to all the capital cities of the world
D.customers can only buy tickets with ready money
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科目:高中英语 来源: 题型:阅读理解
How Room Designs Affect Our Work and Feeling
Architects have long had the feeling that the place we live in can affect our thoughts, feelings and behaviors. But now scientists are giving this feeling an empirical(经验的,实证的)basis. They are discovering how to design spaces that promote creativity, keep people focused, and lead to relaxation.
Researches show that aspects of the physical environment can influence creativity. In 2007, Joan Meyers-Levy at the University of Minnesota, reported that the height of a room’s ceiling affects how people think. Her research indicates that higher ceilings encourage people to think more freely, which may lead them to make more abstract connections. Low ceilings, on the other hand, may inspire a more detailed outlook.
In addition to ceiling height, the view afforded by a building may influence an occupant’s ability to concentrate. Nancy Wells and her colleagues at Cornell University found in their study that kids who experienced the greatest increase in greenness as a result of a family move made the most gains on a standard test of attention.
Using nature to improve focus of attention ought to pay off academically, and it seems to, according to a study led by C.Kenneth Tanner, head of the School Design & Planning Laboratory at the University of Georgia. Tanner and his team found that higher scores on tests of vocabulary, language arts and maths than did students whose classrooms primarily overlooked roads and parking lots.
Recent study on room lighting design suggests that dim (暗淡的) light helps people to loosen up. If that is true generally, keeping the light low during dinner, or at parties could increase relaxation. Researchers of Harvard Medical School also discovered that furniture with rounded edges could help visitors relax.
So far scientists have focused mainly on public buildings. “We have a very limited number of studies, so we are almost looking at the problem through a straw (吸管)” architect David Allison says; “How do you take answers to very specific questions and make broad ,generalize use of them?” That is what we are all struggling with”
1.What does Joan Meyers-Levy focus on in her research?
A.Light B.Ceilings. C.Windows. D.Furniture
2.The passage tells us that____________.
A.the shape of furniture may affect people’s feelings
B.lower ceilings may help improve students’ creativity
C.children in a dim classroom may improve their grades
D.students in rooms with unblocked views may feel relaxed
3.The underlined sentence in the last paragraph probably mean that_______.
A.the problem is not approached step by step
B.the researches so far have faults in themselves
C.the problem is too difficult for researchers to detect
D.research in this area is not enough to make generalized patterns
4.Which of the following shows the organization of the passage?
CP :Central Point P:point SP: Sub-point(次要点) C:Conclusion
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