Question

【題目】 Do you like to eat sushi(壽司)? Many people are afraid to eat it, because they think the bacteria(細(xì)菌) in it might make them sick. However, a new study shows that sea bacteria are good for people. The study finds that a special enzyme(酶) from sea bacteria is helpful to humans. It helps people to get more energy from food.

To people’s surprise, the enzyme is present only in the Japanese. The Japanese traditionally like to eat food rich in seaweed(海藻). And the seaweed is rich in this kind of enzyme.

However, the enzyme isn’t present in all the Japanese. During the study, just 5 out of 14 Japanese had the enzyme. All the Americans studied didn’t have the enzyme.

“The number is small,” said researcher Mirjam Czjzek. “But we can say that this enzyme is present only in the Japanese and not in the North Americans.”

Then some people think that maybe other people are able to get the enzyme if they eat a lot of seaweed. The study suggests that they collect uncooked seaweed to make their sushi.

Restaurant sushi is often cooked, which will destroy the enzyme. So, if you want to get that enzyme, you can travel to Japan to have a taste of the real sushi.

【1】Which has the same meaning as the underlined word “destroy”?

A.ruinB.protectC.throwD.keep

【2】Why do the Japanese have the special enzyme?

A.Because they like to eat food full of bacteria.

B.Because they were born with such an enzyme.

C.Because they get more energy from food.

D.Because they eat a lot of seaweed.

【3】Which of the following is wrong?

A.The Japanese have a diet rich in seaweed.

B.All the Japanese studied have the special enzyme.

C.All the North Americans studied don’t have the enzyme.

D.The enzyme helps people to get more energy.

【4】According to the study, about _______ of Japanese have the enzyme.

A.5%B.14%C.35%D.60%

【5】Which of the following is the best title?

A.Restaurant sushi.B.Sea bacteria.C.Seaweed soup.D.A special enzyme.

Answer 1

【答案】

【1】A

【2】D

【3】B

【4】C

【5】D

【解析】

本文是一篇說(shuō)明文，主要介紹了存在于海藻中的一種特殊的酶，這種酶對(duì)人身體有益，幫助人們從食物中獲取更多的能量。

【1】詞句猜測(cè)題。ruin破壞；protect保護(hù)；throw扔掉；keep保持。根據(jù)“Restaurant sushi is often cooked, which will destroy the enzyme”可知，飯店的壽司被加工之后就會(huì)破壞這種酶，故劃線(xiàn)部分destroy意為“破壞”與ruin同義。故選A。

【2】細(xì)節(jié)理解題。根據(jù)第二段“The Japanese traditionally like to eat food rich in seaweed. And the seaweed is rich in this kind of enzyme”可知，日本人經(jīng)常吃富含這種酶的海藻，所以他們體內(nèi)有這種特殊的酶。故選D。

【3】細(xì)節(jié)理解題。A選項(xiàng)：日本人的飲食中含有豐富的海藻。根據(jù)“The Japanese traditionally like to eat food rich in seaweed”可知，選項(xiàng)正確；B選項(xiàng)：所有被研究的日本人都有這種特殊的酶。根據(jù)“the enzyme isn’t present in all the Japanese”可知，選項(xiàng)錯(cuò)誤；C選項(xiàng)：所有被研究的北美人都沒(méi)有這種酶。根據(jù)“All the Americans studied didn’t have the enzyme”可知，選項(xiàng)正確；D選項(xiàng)：這種酶幫助人們獲得更多的能量。根據(jù)“It helps people to get more energy from food”可知，選項(xiàng)正確。故選B。

【4】細(xì)節(jié)理解題。根據(jù)第三段“During the study, just 5 out of 14 Japanese had the enzyme”可知，在研究中14個(gè)日本人中有5人有這種酶，5/14約等于35%。故選C。

【5】最佳標(biāo)題題。根據(jù)第一段“The study finds that a special enzyme(酶) from sea bacteria is helpful to humans”及全文內(nèi)容可知，本文主要圍繞一種特殊的酶展開(kāi)，介紹了它的存在環(huán)境及對(duì)人體的作用，因此D選項(xiàng)“一種特殊的酶”可作為本文標(biāo)題。故選D。