D. Protecting their homes and stopping poaching.
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 vertebrates1 to lay eggs and produce more mosquitoes. She has a special part of her mouth that she uses to suck blood, and her spit2 thins the blood so she can drink it. In fact, its the mosquitos saliva that makes the bites itch3!
A person who gets bitten by a mosquito will notice a wheal, which is a bump4 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 think youve 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 antiitch cream at the drugstore for you. Placing an ice pack on the bite will also help. Tell an adult youve been bitten by a mosquito, especially if you live in the eastern United States. But if you develop an allergic5 reaction and feel dizzy or sick, tell a doctor immediately. He can treat allergic reactions with medicines.
The best way to avoid mosquito bites is to wear an insect repellent6. Repellents that include one of these ingredients are best: DEET, lemon eucalyptus7, or picaridin. Ask a parent to help you apply them.
Since mosquitoes lay their eggs in water, its 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 its possible, wear longsleeved shirts and long pants to keep mosquitoes away from your skin.
【生词注释】
1. vertebraten. 脊椎动物
2. spitn. 口水, 唾沫
3. itchvi. 发痒
4. bumpn. 肿块;隆起物
5. allergicadj. 过敏的
6. repellentn. 驱虫剂
7. eucalyptusn. 桉树
1. Why do female mosquitoes bite vertebrates?
A. To remove vertebrates blood clearly.
B. To enjoy their lives in the environment.
C. To help male mosquitoes with the play.
D. To lay eggs and produce more mosquitoes.
2. What makes you itch after the mosquitoes bites?
A. A bump around the bite.
B. The mosquitos saliva.
C. Some calamine lotion.
D. An antiitch cream.
3. The underlined word “wheal” （Paragraph 2） is closet 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 spread nearby
D. an illness from mosquitoes bite and other pollution disease
4. 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 fade away.
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.
The ￡100m drive to save the worlds forests aims to pay people in developing countries to live among the trees rather than cut them down.
1 Amid1 alarm over the pace of deforestation2, new palm oil plantations3 will be established on ground where trees have already been cleared.
Governments in developing countries will be given help. 2 They will also be encouraged to create “buffer4 zones” around endangered woodlands which loggers are forbidden to cross.
The ￡ 100m initiative5 will be announced by the Government today at the United Nations conference on climate change in Poznan. 3 They submit the most innovative6 schemes for protecting forests.