Question

On a hot summer day, ice-cold watermelons serve up a delicious treat. Sure, the rosy flesh (果肉) quenches your thirst (解渴). But now there are more reasons than ever for people to reach for a slice of watermelon.

Meet Dr Alison Edwards. She is a scientist at the Agricultural Research Service. Scientists are people who come up with new ideas called theories (理论). They usually do scientific research to test their new theories. That’s how they find out if a new idea is a good one, or if the new idea will bring an even better idea.

At her lab, Dr Edwards recently learned more about the secrets of why watermelons are good for you!

Dr Edwards has known for a long time that watermelons have vitamin C. But recently she learned that watermelons also have lycopene (番茄红素). It is something that gives tomatoes and watermelons their rosy red colour.

What’s so special about the lycopene in watermelons?

Dr Edwards says that watermelons and tomatoes both have lots of lycopene. It seems that your body can use the lycopene from watermelons more easily than the lycopene from raw (生的) tomatoes. In fact, the lycopene from tomatoes is more easily absorbed (吸收) inside your body once they have been cooked.

1.The watermelon is a kind of ________.

A. drink         B. fruit       C. medicine        D. vitamin

2.How does a scientist usually test a theory?

A. By practising it in daily life.

B. By doing scientific research.

C. By discussing it with other scientists.

D. By looking into many scientific reports.

3.Lycopene is something that gives tomatoes and watermelons their ________ colour.

A. red         B. green        C. black        D. yellow

4.To make full use of tomatoes, we’d better________.

A. eat them raw        B. not peel the

C. cook them first      D. make them into juice

5.Which of the following is TRUE according to the passage?

A. Our bodies cannot absorb lycopene.

B. Watermelons are good for us in hot summer.

C. Tomatoes have more lycopene than watermelons do.

D. Lycopene in watermelons is hard for our bodies to absorb.

Answer

1.B

2.B

3.A

4.C

5.B

【解析】

试题分析：短文大意：在炎热的夏天西瓜对我们是有益的。爱德华兹博士已经了解了很长一段时间，西瓜有维生素C，但最近她发现西瓜也有番茄红素。爱德华兹博士说，西瓜和西红柿都有大量的番茄红素。

1.B细节理解题。根据短文开头On a hot summer day, ice-cold watermelons serve up a delicious treat. Sure, the rosy flesh (果肉) quenches your thirst (解渴).可知西瓜是一种水果，所以该选B。

2.B细节理解题。根据第二段中They usually do scientific research to test their new theories.可知科学家通常做科学研究来检验他们的新理论。所以该选B。

3.A细节理解题。根据第三段中But recently she learned that watermelons also have lycopene (番茄红素). It is something that gives tomatoes and watermelons their rosy red colour.可知但最近她发现西瓜也有番茄红素。这给了西红柿和西瓜的红色。所以该选A。

4.C细节理解题。根据短文最后In fact, the lycopene from tomatoes is more easily absorbed (吸收) inside your body once they have been cooked.可知西红柿中的番茄红素一旦被煮熟更容易被吸收。所以该选C。

5.细节理解题。根据短文第一段的描述可知在炎热的夏天西瓜对我们是有益的。所以该选B。

考点：科普类阅读。