第一篇：

We produce 500 billion of plastic bags in a year worldwide and they are thrown away polluting oceans，killing wildlife and getting dumped in landfills where they take up to 1000 years to decompose. Researchers have been unsuccessfully looking for a solution.

The 16yearold Canadian high school student，Daniel Burd, from Waterloo Collegiate Institute, has discovered a way to make plastic bags degrade(分解) in as few as 3 months，a finding that won him first prize at the Canada-Wide Science Fair，a $10 000 prize，a $20 000 scholarship, and a chance to revolutionize a major environmental issue.

Burd's strategy was simple: Since plastic does eventually degrade, it must be eaten by microorganisms (微生物). If those microorganisms could be identified, we could put them to work eating the plastic much faster than under normal conditions.

With this goal in mind, he ground plastic bags into a powder and concocted(调制) a solution of household chemicals, yeast(酵母) and tap water to encourage microbes growth. Then he added the plastic powder and let the microbes work their magic for 3 months. Finally，he tested the resulting bacterial culture on plastic bags，exposing one plastic sample to dead bacteria as a control. Sure enough, the plastic exposed (暴露) to the live bacteria was 17% lighter than the control after six weeks.

The inputs are cheap：maintaining the required temperature takes little energy because microbes produce heat as they work, and the only outputs are water and tiny levels of carbon dioxide.

“Almost every week I have to do chores and when I open the closet door, I have piles of plastic bags falling on top of me. One day, I got tired of it and I wanted to know what other people are doing with these plastic bags. The answer：not much. So I decided to do something myself.”said Daniel Burd.

1. Daniel Burd won first prize at the Canada-Wide Science Fair because________.

A. he found a new kind of microorganism

B. he contributed much to environmental protection

C. he found a way to degrade plastics in shorter time

D. he could encourage microbes growth in an easier way

2. Daniel Burd exposed one plastic sample to dead bacteria to________.

A. make the live bacteria work better

B. test how effective his method was

C. know which bacteria worked faster

D. control the temperature in the process

3. Maintaining the required temperature takes little energy because ________.

A. plastics can get hot easily

B. microbes can produce heat themselves

C. much carbon dioxide is produced

D. the temperature can be controlled

4. Daniel Burd got his idea from ________.

A. his school textbook

B. the failure of researchers

C. his everyday work

D. the practice of other people

第二篇：

Brave Frenchman Found Half way Around the World

(NEW YORK)A French tourist highly praised for rescuing a two year old girl in Manhattan said he didn't think twice before diving into the freezing East River.

Tuesday's Daily News said 29 year old Julien Duret from France is the man who left the spot quickly after the rescue last Saturday.

He lifted the little girl out of the water after she fell off the bank at the South Street Seaport museum. He handed the girl to her father，David Anderson, who had dived in after him.

“I didn't think at all.”Duret told the Daily News. “It happened very fast. I reacted very fast.”

Duret，an engineer on vacation, was walking with his girlfriend along the pier(码头)when he saw something falling into the water. He thought it was a doll，but realized it was a child when he approached the river, in an instant, he took off his coat and jumped into the water.

When he reached the girl, she appeared lifeless, he said. Fortunately，when she was out of the water, she opened her eyes.

Anderson said his daughter slipped off the bank when he was adjusting his camera. An ambulance came later for her, said Duret, who was handed dry clothes from onlookers. Duret caught a taxi with his girlfriend shortly after.

The rescue happened on the day before he left for France. Duret said he didn't realize his tale of heroism had greatly moved New York until he was leaving the city the next morning.

“I don't really think I'm a hero.”said Duret. “Anyone would do the same thing.”

1. Why was Duret in New York?

A. To meet his girlfriend.

B. To work as an engineer.

C. To spend his holiday.

D. To visit the Andersons.

2. What did Duret do shortly after the ambulance came?

A. He was interviewed by a newspaper.

B. He asked his girlfriend for his dry clothes.

C. He went to the hospital in the ambulance.

D. He disappeared from the spot quickly.

3. Who dived after Duret into the river to save the little girl?

A. David Anderson.

B. A passer by.

C. His girlfriend.

D. A taxi driver.

4. When was Duret most probably found to be the very hero?

A. The day when he was leaving for home.

B. A couple of days after the girl was rescued.

C. The first day when he was in New York.

D. The same day when he was interviewed.

第一篇：

1.C　细节理解题。从文章第二段可知，他因发现短时间降解塑料袋的方法而获奖，故答案选C项。

2.B　推理判断题。从文章第四段中的“...exposing one plastic sample to dead bacteria as a control”可推断，他这样做的目的在于测试他的方法是否有效，所以答案为B项。

3.B　细节理解题。从文章倒数第二段中的“maintaining the required temperature takes little energy because microbes produce heat as they work”可知答案选B项。

4.C　推理判断题。从文章最后一段丹尼尔·伯德说的话可推知，他是从每天的工作中得到启发的，故答案选C项。

第二篇：

本文是一篇新闻报道类文章。介绍了一位到美国度假旅游的法国工程师成功地救出了一位溺水女孩，成为了纽约的英雄。

1.C　细节理解题。根据文章开始的“A French tourist...”和后文中的“Duret, an engineer on vacation, was walking with his girlfriend along the pier(码头) when he saw something falling into the water.”可知Duret 到纽约是为了度假。

2.D　细节理解题。根据“...29??year??old Julien Duret from France is the man who left the spot quickly after the rescue...”可知Duret 把小女孩从水中救出后立刻与他的女朋友离开了现场。

3.A　细节理解题。根据“He handed the girl to her father, David Anderson, who had dived in after him.”可知，继Duret 之后跳进水中的人是这位小女孩的父亲David Anderson。