题目内容
— You should go over your test paper ________ you hand it in.
— OK, Mr. Wang.
A. as soon as B. though C. because D. before
最近某中学拟开展以“校园拒绝零食”为主题的活动。假如你是该校学生会主席，请你以学生会的名义，参考下面的内容提示，给全校学生写一封倡议书。
内容提示：1. 描述吃零食的现象：下课聚集在小卖部买零食，上课吃零食等；
2. 描述吃零食的影响：浪费钱，零食是非健康食品，导致肥胖、生病；乱扔垃圾。污染校园
3. 提出合理化建议…
1. 描述吃零食的现象 | 下课聚集在小卖部买零食，上课吃零食等； |
2. 描述吃零食的影响： | 浪费钱，零食是非健康食品，导致肥胖、生病；乱扔垃圾；污染校园 |
3. 提出合理化建议…… |
注意：1．词数100-120，开头已为你写好（不计入总词数）。
2. 参考词汇：snacks零食; phenomenon现象, fatness 肥胖; illness生病；campus校园; school store 小卖部
No Snacks on our School Campus
Dear fellow students,
Here is a serious phenomenon in our school.
If the only sports you do are dancing your fingers across your keyboard, you could be in serious danger of more than just becoming overweight and out of shape.
Do you often feel sleepy, like something is weighing down on your head? Do you feel forgetful? Do you sometimes feel uncomfortable up and down your neck and lower back, and you can’t explain why? Do you get sick often? It could be radiation(辐射) from your computer causing it. If you spend three hours or more a day in front of a computer, you are more easily harmful by the hazard(危险).
We have got so used to using computers that we often neglect(忽略) to think of them as dangerous sources of harmful radiation. A safe amount of radiation is 25V/m(Volts/meter). Do you want to guess how much our personal computers give off?
Keyboard： 1000 V/m
Mouse： 450 V/m
Monitor： 218 V/m
CPU： 170 V/m
Notebook computers： 2,500 V/m
Ways to Protect Yourself from Harmful Computer Radiation
1. Decorate your desk with cactus(仙人掌) plants, they take in radiation.
2. Drink two or three cups of green tea a day and eat an orange daily. The vitamins in tea leaves and oranges protect us from radiation and keep our eyes healthy as well.
3. Use a screen filter(过滤器) for your monitor.
4. Avoid having metal objects nearby on your desk.
5. Put the back of the computer to the wall. Most of the radiation comes off the back.
6. Keep your monitor at least 50 cm away from your face.
7. Keep your computer rooms ventilated(空气流通的).
8. Eat healthily---especially fruits and vegetables.
9. Don’t fall asleep on your computer. Turn it off if you have to rest nearby.
The ways above are useful, why not have a try at once?
Ways to reduce1.____________________ | |
Symptom(症状) affected by computers | Feeling sleepy, forgetful and 2.___________ |
A safe amount of radiation | 3.___________________ |
The radiation a mouse gives off | 4.___________________ |
There are 5._________ ways to protect yourself from harmful computer radiation. | |