Question

【题目】When someone has been bitten by a snake, try to find out if the snake is poisonous or harmless. Their bite marks are usually different. The bite of most of most poisonous snake leaves marks of two fangs（毒牙). If the bit of a snake leaves only two rows of teeth marks, but no fang marks, it is less likely that the snake is poisonous.

People often believe that certain harmless snakes are poisonous. Try to find out which of the snakes in your ares are truly poisonous and which are not. Please do not kill non-poisonous snakes, because they do no harm. On the contrary, they kill mice and other pests that do lots of damage. Some even kill poisonous snakes.

Here is some treatment for poisonous snakebite:

*Stay quiet: don’t move the bitten part. The more it’s moved, the faster the poison will spread through the body. If the bite is on the foot, the person should not walk at all. Send for medical hep.

*Remove jewellery because swelling can spread rapidly.

*Wrap the bitten are with a wide elastic bandage or clean cloth to slow the spread of poison. Keeping the arm or leg very still, wrap it tightly, but not so tight that it stops the pulse（脉搏）at the wrist or on top of the foot. If you cannot feel the pulse, loosen the bandage a little.

*Wind the bandage over the hand or foot, and up the whole arm or leg. Make sure you can still feel the pulse.

*Carry the person, on a stretcher（担架）if possible, to the nearest health center. If you can also take the snake, because different snakes may require different antivenoms（抗毒血清）.

*Poisonous snakebite is dangerous. Send for medical help----but always do the things explained above at once. Some treatments, such as cutting the skin around the bite and sucking the venom out of the bite, can cause infection. And remember: Never drink alcohol after snakebite. It makes things worse!

【1】What is the purpose of paragraph 2?

A. To introduce us to different kinds of snakes.

B. To tell us how to recognize poisonous snakes.

C. To advice treating snakes differently.

D. To show how to protect ourselves from snakes.

【2】If a hand is bitten, we should wind the bandage over the whole arm to _____?

A. reduce the pulse.

B. avoid infection.

C. prevent the blood from flowing.

D. 3D printing plays the most important role in daily life.

【3】Which of the following first aids may cause infection..

A. Removing the venom with the mouth.

B. Wrap the elastic bandage tightly.

C. Drinking some water after a snakebite.

D. Breathing mouth to mouth to save the victim.

【4】Where does this text most probably come?

A. A research plan.

B. A life magazine.

C. An advertisement.

D. A science report.

Answer 1

【答案】

【1】C

【2】D

【3】A

【4】B

【解析】本文是一篇说明文，被蛇咬了之后如何判断蛇有无毒，并介绍了一些治疗毒蛇咬伤的方法。

【1】C

目的意图题。根据第一、二句People often believe that certain harmless snakes are poisonous. Try to find out which of the snakes in your ares are truly poisonous and which are not.可知，劝告人们不同地对待蛇。故选C。

【2】D

细节理解题。根据倒数第三段Wind the bandage over the hand or foot, and up the whole arm or leg. Make sure you can still feel the pulse.可知是为了确保你还能感觉到脉搏。故选D。

【3】A

细节理解题。根据最后一段中Some treatments, such as cutting the skin around the bite and sucking the venom out of the bite, can cause infection.可知用嘴吸吮毒液可能引起感染。故选A。

【4】B

推理判断题。根据Here is some treatment for poisonous snakebite:---。可知，这篇课文最可能来自生活杂志。故选B。