【題目】Who hasn't found themselves reaching for the closest food available when they're tired and stressed? More and more research is proving that this isn't all in our mind. Some foods really do lead to a change in our moods (心情)．

Carbohydrate (碳水化合物) for calm

This is how some people medicate(治療) themselves with food — by reaching for cookies or pasta(意大利面食) whenever they're upset. Unfortunately, it doesn't always work. You must eat a meal consisting of 100% carbohydrate, on an empty stomach, to obtain the serotonin (血清素) increase so that you have a good mood.

To get the wishedfor effect, you must not eat anything for four hours and then eat at least 30 grams of straight carbohydrate. Dry cereal (谷類(lèi)食品), a piece of bread with jam, or a potato should do_the_trick.

Protein (蛋白質(zhì)) for power

Of course, sometimes we don't need to be calm and sleepy.Sometimes we need a great deal of mental concentration, so this is when it's important to mix protein and carbohydrate. The protein will prevent the tryptophan (色氨酸) from flooding your brain，and the rise in serotonin(血清素) won't occur.

Why dessert makes us happy

Fat and sugar cause the brain to let go endorphins (內(nèi)啡肽), which send pleasure signals throughout the body. This would be fine, except humans are not particularly good at stopping at one cookie or cake.

You can also satisfy your sweet tooth by choosing fruit for dessert.

Timing your meals for energy

Blood sugar drops after four hours of going without food, causing a decrease(減少) in energy. Eating usually fixes this within 20 to 30 minutes, but don't suppose that eating more will cause a faster increase in energy.

When you eat has as much of an effect on your mood as what you eat. If you regularly go for a long period of time between meals, rethink your schedule and plan ahead.

【1】The underlined phrase“ do_the_trick” in the third paragraph means ________.

A．be extremely smart

B．intend to cheat someone

C．bring about the desired result

D．do something to amuse people

【2】The function of protein is ________.

A．to help you keep calm and sleepy

B．to make you feel energetic

C．to lead you to slowness

D．to increase serotonin in your brain

【3】We can infer from the last two parts that ________.

A．fat and sugar can greatly help people feel happy

B．we humans tend to eat lots of cookies and cakes

C．the more we eat, the faster we will gain energy

D．what we eat is more important than when we eat

【4】The main idea of the passage is ________.

A．eating for a better mood

B．eating to make you calm

C．eating for more protein

D．eating to make us strong

【答案】

【1】C

【2】B

【3】A

【4】A

【解析】

試題分析： 信不信由你，一些食物確實(shí)可以改變我們的心情。如果你的心情不好，可以通過(guò)吃來(lái)解決。哪些食物可以改變你的心情呢，讓我們一起來(lái)閱讀此文吧

【1】詞義猜測(cè)題。根據(jù)第第三段內(nèi)容：為了得到希望得到的效果，你一定四個(gè)小時(shí)不要吃任何東西，然后吃至少吃30克直碳水化合物。干麥片（谷類(lèi)食品），一塊面包，果醬，或土豆應(yīng)該起到作用，與C：帶來(lái)期望的結(jié)果相對(duì)應(yīng)，所以C正確。

【2】細(xì)節(jié)理解題。根據(jù)第二個(gè)標(biāo)題Protein (蛋白質(zhì)) for power可知 蛋白質(zhì)的功能就是給你力量，與B項(xiàng)：讓你精力充沛想對(duì)應(yīng)，故選B。

【3】推理判斷題。根據(jù)第三個(gè)標(biāo)題下第一句話：Fat and sugar cause the brain to let go endorphins (內(nèi)啡肽), which send pleasure signals throughout the body. 脂肪和糖會(huì)使大腦釋放內(nèi)啡肽（內(nèi)啡肽），這向整個(gè)身體發(fā)出快樂(lè)的信號(hào)， 與A項(xiàng)相對(duì)應(yīng)，故選A。

【4】主旨大意題。本文第一段最后一句是主題句：Some foods really do lead to a change in our moods (心情)．有些食物確實(shí)導(dǎo)致我們的情緒（心情）的變化，故選A。

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