问题 填空题

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 stress Stress is a (68) when you are worried about something.
Possible effect You 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 kinds Bad 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.


答案

参考答案:proper

单项选择题

全球现有活火山600多座,其活动程度可分为喷溢、喷发、爆发3个等级。火山爆发是极强烈的火山活动,范围更大的火山爆发则会给地球环境及生物造成大灾害。

火山爆发除了直接灾害外,还可能引起区域性、全球性气候异常,带来其他自然灾害。1991年我国华东地区出现了百年不遇的特大洪水,专家们分析后认为:菲律宾皮纳图博火山大爆发引起了亚洲广大地区天气异常,这可能是洪水爆发的主要原因之一。另据美国地质学家兰皮诺和考古学家安布罗斯考证,现印尼苏门答腊岛上的多巴火山,在7.1万年前曾有过一次极其强烈的爆发。那次火山爆发向大气层喷出了800立方千米的火山灰,使北半球1/3地区持续几个星期笼罩在黑暗之中;然后是长达6年的冬季效应,北半球可能是 3/4的植物死亡;再后是长达千年的冰期,5万到7万年前的人口以及物种遗传变化的急剧减少,有可能是多巴火山大爆发造成的,不过,专家们又认为:像多巴火山这样强烈的爆发事件,在21世纪发生的可能性只有1/10000000,故此我们毋须过多担忧。

1999年4月,美国《科学》杂志报道,加利福尼亚大学伯克利分校的伦尼等研究人员,通过对美国新泽西州到西非的环大西洋火山岩的研究,提出了“火山爆发形成大西洋”的假说。他们认为:两亿年前,地球上曾发生过一次迄今为止最强烈的火山爆发,从而使位于现在大西洋位置的原始大陆(古代大陆)分裂为几个大洲,并形成大西洋。他们估计:这次火山爆发产生了巨大的熔岩流,其覆盖面积达700万平方千米,持续时间长达几百万年。这次火山爆发时间正好与三叠纪和侏罗纪的衔接相吻合,大约50%的海洋物种和一些爬行动物都遭到灭顶之灾,从而为后来恐龙的出现和兴盛创造了条件。不过,这一假说尚未得到证实。

文中提到的被确认给地球环境造成严重影响的火山爆发有()。

A.一次

B.二次

C.三次

D.四次

单项选择题