题目内容
________ maps properly, you need a special pen.
- A.Drawn
- B.Drawing
- C.To draw
- D.Be drawing
逻辑主语是You。根据you need判断,draw动作尚未发生,所以用不定式而不可用分词形式。
When people want to know about the weather, they usually go to their radios, TVs, newspapers, or to the Internet. However, you can also find many weather signs among wildlife, because of their highly developed senses. Drops in air pressure produce an effect on small animals in many ways. Mice and deer are good weather indicators. People who spend a lot of time outdoors have observed that, before a storm, field mice come out of their holes and run around. Deer leave high ground and come down from the mountains.
Birds are especially good weather indicators because they also show the effect of a pressure drop in many ways. For example, some birds become irritable(暴躁) and quarrelsome and will fight over a piece of bread. Other birds chirp and sing just before a storm. It seems they know they won’t get another chance for an hour or two. Birds also look for safe places before a storm. You will sometimes see birds settling in trees or gathering together on a wire close to a building. Pre-storm low pressure make the air so thin that birds have difficulty flying.
It is unusual to see many birds flying overhead in the summertime, rather than during the periods in the spring or autumn. Watch for other weather signs if you see this. If they fly in the wrong direction, they may be flying ahead of a storm.
By paying closer attention to some important signs in nature, we can become better prepared for any kind of weather.
【小题1】The word “indicators” in paragraph 1 probably means .
A.maps | B.services | C.signs | D.stations |
A.By feeling a drop in air temperature. |
B.By noticing the change of wind directions. |
C.By feeling a drop in air pressure. |
D.By noticing the movements of other animals. |
A.Signs of a Storm | B.Drops in Air Pressure |
C.Animals’ Sharp Senses | D.Nature’s Weather Signs |
On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could read the whole “map” of the human body: DNA. DNA is something that everybody has, and it tells the body what to do. DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own.
People have been trying to understand the human body for a long time. In 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family. It is because of small things named “genes” in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language.
In 1961, Marshall Nirenberg and Johann Matthaci found a message in DNA showing how DNA tells the cell(细胞)to build its parts. Scientists have now found all the words in the DNA map, but we still do not understand what they all do. By understanding what just one “word” means, we can help save more people from several illnesses.
Most people hope that this will help make better medicine and help sick people. Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have to meet a lot of trouble if DNA technic wasn’t limited(限制)in use.
【小题1】When did we first know why we look like other people m our family?
A.In 1860 | B.In 1953 | C.In 1961 | D.In 2000 |
A. The “map” of DNA. B. A special language.
C. Small parts of DNA. D. DNA
【小题3】What did the two scientists first discover in 1961 ?
A. The “map” of DNA. B. A new illness.
C. The language of DNA. D. A message of DNA.
【小题4】What can we do if we understand some “ words” of the language inside the body
A.Make people get new jobs. |
B.Make medicine for illnesses. |
C.Make maps of human. |
D.Make people less attractive. |
A.It can cause good or bad results. |
B.It can cause only good results. |
C.It can cause good results but won’t work. |
D.It can cause only bad results. |
For Customers in the USA and Canada Only.
(Customers outside North America, please CLICK HERE to start your shopping)
Product | Item / Price | Description |
The Silk Road (Item#CB510) Price: US$12.99 | The Silk Road, with colorful pictures, has information of hot spots, suggested routes with an area map, introduction(介绍) of major cities along the silk road, festivals, hotel, transportation and travel service. Color pictures. 48 pages. English. Click for picture of inside page. | |
The Sights of Beijing (Item# CB101) Price: US$39.99 | Detailed(详细的) Beijing tour guide, 684 pages, English. The book includes Beijing introduction and sightseeing, profile of the sights(名胜),places to visit, travel information, scenic spots within one-day journey from Beijing, with pictures. | |
Talking about China (Item#CB102) Price: US$12.99 | English & Chinese A Canadian’s experience in China. CLICK for more information or pictures. |
【小题1】Mr Smith is an American teacher who works in Peking University. How could he get the book The Silk Road?
A.By telephoning the travel agency. | B.He could shop online. |
C.He could go to the post office to buy it. | D.He has to buy it in Xinjiang. |
A.An area map. |
B.Hotel service. |
C.Introduction of major cities along the silk road. |
D.Introduction of sports along the silk road. |
A.Description. | B.Maps. | C.Service. | D.Price of the tickets. |
A.Not all the books are in English. |
B.The Sights of Beijing is the most expensive. |
C.Talking about China is about a Canadian’s experience in Canada. |
D.There’re pictures in all the books. |
A.Surf the Internet. | B.Write a letter to the writer. |
C.Ask the Canadian. | D.Buy the books in Canada. |
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1.John got lost on his way to the library.
A. B. C. D.
2. Xu Ying is now on a business tour in Germany. She finds it difficult to understand articles in Germany.
A. B. C. D.
3.Lisa is a photographer, and wants to show some of her best pictures with her friends in Italy.
A. B. C. D.
4.Sun Xin is poor at English speaking, and now wants to improve it by practicing it on line with native speakers.
A. B. C. D.
5. Kim is a busy girl. She often forgets something important. She really needs to put his plans in a schedule so as to remind her in time.
A. B. C. D.