题目内容
Arctic Circle. That's the thinking-more or less-behind the Svalbard Global Seed Vault (地窖). Almost every
nation keeps collections of native seeds so local crops can be replanted in case of an agricultural disaster.
The Global Seed Vault, opened on the far-northern Norwegian island of Spitsbergen, is a backup for the
backups. It's badly needed-as many as half the seed banks in developing countries are at risk from natural
disasters. The vault can hold up to 4.5 million samples, which will be kept dry at about -18℃. Even if the
facility (设施) loses power, the Arctic climate should keep the seeds alive for thousands of years.
On an unusual old farm in New York City, workers are also storing away the seeds of the future. In this
unlikely place, researchers are putting the seeds from flowering plants and trees in a sleeplike state called
suspended animation (假死状态). Many years from now, other workers will wake up the sleeping seeds and
plant them where they're most needed. These seeds are like the legendary (传说中的) Rip van Winkle, who
fell asleep under a tree and woke up 20 years later. The small farm, called the Greenbelt Native Plant Center,
is part of a global effort to save threatened (受到威胁的) plants and trees. The most important step is to
collect seeds at exactly the right time-when they are just about ready to fall from the plant. The seeds are
being kept in storage at the Greenbelt Center. When planted in the future, these seeds could help restore
damaged parklands and forests.
B. Because half the seed banks in developing countries are at risk.
C. Because the climate there is fit for keeping seeds for a long time.
D. Because it is the best place to fight against agricultural disasters.
B. it is the largest seed company in the world
C. it is set up to save the threatened plants and trees
D. it stores the seeds of most kinds of plants in New York City
B. store them at a constant temperature
C. dry them in specially designed rooms
D. make it enter a state of suspended animation
B. saving seeds for the future
C. the challenges of collecting seeds for storage
D. the efforts made by Greenbelt Center to save plants
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阅读理解。 | |
Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security (安全). Her friend, Kate, found this article and sent it to her.
| |
1. Which part of the text gives you information on how to lock up your bicycle when you leave it? | |
A. Locks. B. Marking. C. Registration. D. Basic Security. | |
2. The underlined phrase "act as a deterrent to a thief" means ______. | |
A. help you recognize your bike B. help the police find your bicycle C. stop someone stealing your bicycle D. stop you worrying about your bike | |
3. The article advises you to keep a record of your bicycle _______. | |
A. in the bike shop and your computer | |
4. The main purpose of this article is _________. | |
A. to tell you what to do if your bicycle is stolenB. to suggest ways of keeping your bicycle safe C. to give you advice on where to buy a good lock D. to say why you shouldn't keep your bicycle in a quiet place |
阅读理解。 | ||
Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security (安全). Her friend, Kate, found this article and sent it to her.
| ||
1. Which part of the text gives you information on how to lock up your bicycle when you leave it? | ||
A. Locks. | ||
2. The underlined phrase “act as a deterrent to a thief” means ______. | ||
A. help you recognize your bike B. help the police find your bicycle C. stop someone stealing your bicycle D. stop you worrying about your bike | ||
3. The article advises you to keep a record of your bicycle _______. | ||
A. in the bike shop and your computer B. in the police station and a security company C. in a security company and your university D. by yourself and in a security company | ||
4. The main purpose of this article is ______. | ||
A. to tell you what to do if your bicycle is stolen B. to suggest ways of keeping your bicycle safe C. to give you advice on where to buy a good lock D. to say why you shouldn’t keep your bicycle in a quiet place |
阅读理解。 | |
Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security (安全). Her friend, Kate, found this article and sent it to her.
| |
1. Which part of the text gives you information on how to lock up your bicycle when you leave it? | |
A. Locks. B. Marking. C. Registration. D. Basic Security. | |
2. The underlined phrase "act as a deterrent to a thief" means _____. | |
A. help you recognize your bike B. help the police find your bicycle C. stop someone stealing your bicycle D. stop you worrying about your bike | |
3. The article advises you to keep a record of your bicycle ______. | |
A. in the bike shop and your computer B. in the police station and a security company C. in a security company and your university D. by yourself and in a security company | |
4. The main purpose of this article is _____. | |
A. to tell you what to do if your bicycle is stolen B. to suggest ways of keeping your bicycle safe C. to give you advice on where to buy a good lock D. to say why you shouldn't keep your bicycle in a quiet place |