题目内容
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
BADA
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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List Price: $16.95 Price:$14.35
| 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.
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
