阅读理解

High in the mountains, and deep in the forest, lives a lake with many plants and animals in and around her. The plants and animals have enough food and clean water to keep them healthy. The wind carries pure air, and the rain comes down clear and clean.

But recently, Lucy Lake and her friends haven’t been feeling very well. All the plants and animals get together to talk about the problem. “Why are we sick?” “What can we do?” ask all of them. No one has any answers.

Just then two hikers appear. The animals tell them about their problems. “Can you help us?” they ask. “Yes,” one hiker says. “I think it’s because of acid rain.”

“Acid rain comes from chemicals(化学物质) in the air. The pollution comes from factories, cars and trucks.”

“So, although I don’t want to, I help the pollution travel through the air!” says the wind. “And I carry it to the land!” cries the rain. 

“If you can help us think of some solutions(解决方法), we will send a message to tell people how to clean up our environment,” one hiker says. 

With the help of the plants and animals, the two hikers make a list of ideas for saving Lucy Lake and her friends.

Time passes, and the forest and lake begin to feel a little better.

The next time the hikers climb up the mountains to Lucy Lake, they smile at what they find. “We’re glad things have started to change,” one hiker says. “And we’re glad you helped us make a difference,” says the other.

1.The underlined word “pure” can be replaced by “____”.

2.The two hikers are most probably ____.

3.____ have (has) nothing to do with the cause of acid rain.

4.The underlined word “you” refers to (指) ____. 

5.Which of the following is NOT true?

Text messaging, or simply “texting”, which allows people to send and receive messages on  mobile phones, becomes very popular today.

The advantages of texting are obvious. Texting helps to save money. If you have a few words to greet your families and friends on their birthdays or on some important festivals, sending messages can be cheaper than phone calling. Texting helps to save time. Even if you want to send a message to 100 people, you can do it one second. Texting helps you to “talk” to someone when he is too busy to answer the phone. Texting can also help you to “talk” to someone secretly if you don’t want others to hear what you are talking on the phone. These advantages are so amazing that many people are crazy about it. They hold mobile phones in hands all day long, send dozens of messages each day, and even text while driving or walking.

 However, texting has its disadvantages. Junk messages may come into your mobile phone box now and then. When your phone box gets too full, you can’t receive any more messages. You may therefore miss some important information.

What’s more, if you don’t do texting properly, for example texting while driving or walking, it can be dangerous. It can cause injuries and even death. It was reported that about 6,000 people were killed and half a million were injured for this reason each year. In Fort Lee, a small town in New Jersey, USA, three people died because they walked into traffic while texting in 2011. Two researchers at Stony Brook University, New York found that texters are 60% more probably to have an accident than others. When people are texting, they don’t notice other people or things around them. To reduce traffic accidents, all drivers of the UN are now not allowed to text while driving. About 32 countries have passed laws restricting the use of mobile phones while driving.

Texting is a wonderful way of communication. However, only when we use it properly, can we fully enjoy the fun it brings.

1. How many advantages of texting are mentioned in the passage?

A. Two.       B. Three.        C. Four.      D. Five.

2. What did the researchers at Stony Brook University find?

A. Texting is a good way of communication. 

B. 6,000 people were killed and injured.

C. Texters are easier to have an accident.

D. Many people text to greet families and friends.

3. The underlined word restricting probably means _________.

A. not telling   B. not allowing    C. enjoying   D. making

4. This passage is written to tell us that __________.

A. we should do less texting

B. texting has many advantages

C. texting is better than phone calling

D. we should do texting properly