题目内容
B
A mosquito is an insect that is found all over the world．There are thousands of different kinds of mosquitoes in many different sizes and colors．The female mosquito needs blood from vertebrates （脊椎动物）to lay eggs and produce more mosquitoes．She has a special part of her mouth that she uses to suck blood，and her saliva（spit）thins the blood so she can drink it．In fact．It’s the mosquito’s saliva that makes the bites itch（痒）!
A person who gets bitten by a mosquito will notice a wheal，which is a bump around the bite．
The wheal will be round，with pink or red around the edge and white in the middle．The wheal will
itch a lot．Soon the wheal will disappear, but the itch will stay．
If you’ve been bitten by a mosquito，wash the bite with soap and water．Put on some calamine lotion to help stop the itching，or an adult can find an anti-itch cream at the drugstore for you．Placing an ice pack on the bite may also help．Tell an adult you’ve been bitten by a mosquito，especially if you live in the eastern United States．But if you develop an allergic reaction and feel dizzy or sick，tell a doctor immediately．He can treat allergic reactions with sole medicine．
The best way to avoid mosquito bites is to wear an insect repellent．Repellents that include one of these ingredients are best：BEET and lemon eucalyptus．Ask a parent to help you apply them．
Since mosquitoes lay their eggs in water，it’s also a good idea to empty out buckets，flower pots，toys and other things in your yard that may have collected water during a rainstorm．And when it’s possible，you’d better wear long-sleeved shirts and long pants to keep mosquitoes away from your skin．
60．What makes you itch after the mosquitoes’bites?
A．A bump around the bite． B．The mosquito’s saliva．
C．Some calamine lotion． D．An antic-itch cream．
61．The underlined word“wheal”（Paragraph 2）is closest in meaning to________．
A．a small mouth that can prevent an insect
B．a small mark after an insect bite that usually itches
C．an illness after an insect bite that always spreads nearby
D．an illness from mosquitoes’ bites and other pollution diseases
62．Which of the following is TRUE according to this passage?
A．There are thousands of mosquitoes in the same sizes and colors．
B．The wheal will never disappear forever but the itch will disappear soon．
C．Ask a doctor for some medicine if you develop an allergic reaction for the bite．
D．Ask a parent for an insect repellent if you see mosquitoes laying their eggs in water．
60—62 BBC
解析
Jungle(丛林) country is not friendly to man，but it is possible to survive there. You must have the right equipment and you must know a few important things about woodcraft(山林野外知识). Then your chances of staying alive are very good.
No one should go into the jungle without the right equipment. You need lightweight clothing, a good knife, and a compass. Fishhooks and a line，a rifle，matches in a waterproof container and a poncho(雨披) are necessary too. So is a mosquito net(蚊帐) to protect the head.
In the jungle you can get hopelessly lost within five minutes after leaving known landmark(地界碑). That is why you should always carry a compass. In open country during the day, you can tell which way to go by studying the sun. At night the stars are sure guides to direction. But in most places the jungle rooftop is so thick that it is impossible to see the sun or the stars. Again and again you must check your position by the compass.
Keep alert(警惕的). Watch the ground in front of you carefully. Stop and listen now and again. Avoid haste(匆忙), and rest often. In a place that is hot and humid(潮湿的), the person who sets a fast pace will soon become tired. A steady and even pace is wisest in the long run.
If you lose your way, don't panic. Try to decide how long it has been since you were sure of your position. Mark the spot where you are with blazes on a tree. Put them on four sides of the tree, so that you will be able to see them from any direction. Then you can begin retracing your steps(going back exactly the way you have come), knowing that you can always find the spot from which you started. Except in an emergency, never try to travel the jungle at night.
Whenever possible, it is wise to follow streams and rivers that are going in your general direction. This may cause you many extra miles of travel. But in the end it will save time and energy. Nothing is more exhausting (extremely tiring) than hacking(cutting) a way through unbroken jungle.
Surviving in the jungle is a science. The jungle people have become perfect in this science, and you can too. Learn as much as you can about what to expect in the jungle. Make sure you have the right equipment. Then no part of the jungle will seem completely or frightening. In fact, you will be able to “live off” it for a long time.
【小题1】To keep alive in the jungle, you should make it clear that the right equipment is _________.
| A．more important than a knowledge of woodcraft |
| B．less important than a knowledge of woodcraft |
| C．just as important as a knowledge of woodcraft |
| D．not as important as a knowledge of woodcraft |
| A．Check your position by the compass again and again. |
| B．Decide how long ago it was that you got lost. |
| C．Tell which way to go by studying the sun/the stars. |
| D．Mark blazes on four sides of a tree and be sure to see them from any direction. |
| A．one tends to move too slowly at night |
| B．some animals will attack you |
| C．emergencies occur most frequently at night |
| D．it is more difficult to check your position |
| A．avoid animals’ attacks |
| B．save many extra miles of travel |
| C．avoid hacking a way through unbroken jungle |
| D．have a rich supply of drinking water |