题目内容

【题目】1999年,美国国家海洋与大气管理局空间中心发表公报说,人类将迎来第23个太阳活动周期。美国空间环境中心将对其密切观察,并及时发布有关信息。

3.在“黑子峰年”(黑子活动最多的年份),下列行为能有效防范其影响的是

A.增加户外活动时间,增强皮肤的活力

B.有关部门做好应急准备工作

C.清除“宇宙垃圾”,保持太空清洁

D.加强电信网络建设,保持网络通畅

【答案】B

【解析】

3.试题分析:宇宙垃圾”,保持太空清洁不能有效防范黑子活动对人类的影响,C错。黑子是太阳大气层上常出现的暗黑斑点,增强室内外照明并不能减弱黑子的影响,A错。加强电信网络建设,保持网络通畅,不能防范黑子的影响,D错。有关部门做好应急准备工作,做好应急预案,可以减少太阳活动的影响,B对。故选B。

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【题目】Passage 3

Restaurant chefs, home cooks, and foodies — people who love good food — often say that we eat with all of our senses.

First, we use our sense of sight to appreciate how a meal is presented, either on a dinner plate or a dining table. 1 Additionally, with our sense of smell, we breathe in the mouth-watering smell rising up from the meal. Finally, we enjoy the food with our sense of taste.

But does sound also affect our dining experience? A new report from researchers at Brigham Young University said yes. Hearing is often called "the forgotten food sense." says Ryan Elder, and assistant professor of marketing at Brigham Young University. 2 On the other hand, watching loud television or listening to loud music while eating can hide such noises. And this could lead to overeating.

During the experiments, the test subjects wore headphones and listened to noise at either a high or low audio level. 3 The study found that subjects who listened to the higher volume noise ate more pretzels than those with the low audio levels.

Elder says that when hiding the sounds of eating, like when you watch television or listen to loud music while eating, we take away the sense of hearing. 4 The researchers are calling this the "crunch effect", which they admit may not seem like much at one meal. But over a week, a month, or a year, all that food can really add up. So hearing the sound of eating /span>does reduce the amount of food you consume.

5 Hearing the noises of your meal as you eat could also help you to be more mindful of the experience and perhaps help you to enjoy it more.

A. In fact, beautiful food is healthier than food that doesn’t look appealing.

B. But besides not overeating, there is another benefit.

C. And this may cause you to eat more than you would normally.

D. Then researchers gave them a hard snack: pretzels.

E. Our sense of touch can also be important when preparing or sharing food.

F. He notes that soft and sweet sound is thought to enhance the taste of food.

G. He says that if people notice the sound the food makes as they eat it, they might eat less.

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