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问题 选择题

下列说法中，不正确的是

A．人们能够闻到茶香的原因是分子在不断运动

B．气体可压缩储存于钢瓶中，是因为分子之间有间隔

C．因为燃烧需要同时满足三个条件，所以灭火也要同时控制这三个条件

D．氧气与臭氧（O3）的化学性质不同，是因为它们是由不同的分子构成的

答案

C  

题目分析： 燃烧需要同时满足三个条件：可燃物、温度达到着火点、与充足的氧气接触；只要一个条件不满足即可使燃烧停止，灭火

选择题

我国实行宗教信仰自由政策，但对“法轮功”则是坚决给予取缔和打击，这是因为

A．宗教能与社会主义相适应，“法轮功”则不能

B．宗教具有一定的科学性，而“法轮功”是反科学的

C．国 * * 证正常的宗教活动

D．在我国宗教状况发生了根本变化，而“法轮功”具有极大的社会危害性
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问答题

Have you had a headache during a test Have you ever been so worried about something that you have a headache or even can’t sleep at night If so, then you know what stress is. Stress is what you feel when you are worried about something. This worry in your mind can make your body feel bad. You may feel angry, sad, scared, or afraid—all of which can give you a stomachache or a headache.
However, there are different kinds of stress. Some kinds of stress are good and others are bad. Good stress might happen when you’re called to answer questions in class or when you have to give a speech. This kind of stress can help you to get things better done. For example, you may do a better job on your test if the stress pushes you to prepare better before the test.
On the other hand, bad stress can happen if stress lasts too long. You may not feel well if your parents are fighting, if a family member is sick, if you’re having problems at school, or if anything else makes you unhappy every day. That kind of stress isn’t going to help you. And it can actually make you sick.
The best way to fight stress is to have a balanced life. Make sure you keep your SELF in mind: Sleep, Exercise, Leisure(休闲), and Food. If you get enough sleep and eat properly, and if you exercise and leave time for fun, you’ll probably feel less stressed.

Title: Face the Stress
Meaning of stressStress is a　(68)　when you are worried about something.
Possible effectYou may feel uncomfortable in your　(69)　and body.

Good stress

· It might happen when you have to　(70)　in public.

· It will be more　(71)　for you to do the job successfully.

· It makes you　(72)　better before doing the job.
Different kindsBad stress

· It might happen if your stress　(73)　too long.

· You may not feel well with the　(74)　of a family member, problems at school or something else that worries you every day.

· It might stop you from getting your work well done.
How to keep stress　(75)　

Have a balanced life.

· Have enough sleep and have　(76)　food.

· Take exercise and have time to　(77)　yourself.

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