Question

 Everything you do leaves a " carbon footprint"(碳足迹).For example,when you travel in a taxi,the car gives off(排放)C0₂ into the air. C0₂ is a greenhouse gas. Greenhouse gases make the earth become warm. To protect our environment,we need to leave less of a " carbon footprint ，，. How big is your carbon footprint? To get an idea,take a look at the following numbers. Living areas

* TV sets and DVD players produce 723kg of C0₂  a year.

★   If you turn them off when you're not using them,you can cut that number by 108kg.

Laundry room (洗衣房)

Drying clothes in a dryer produces a lot of C0₂.

★   If you use your dryer five times per week,you produce 185kg of C0₂ per year.

* Dry your clothes in the sun instead. Bathroom

* If you take an eight-minute shower every day,you produce 616kg of C0₂ a year.

★ If you only use six minutes to take a shower,you can cut that number by 154 kg a year.

根据短文内容，选择正确答案。

(   ) 1. If you take an eight-minute shower every day ， you'll produce _____ of

C0₂ per year.

A. 154kg    B. 185 kg

C. 616kg    D. 723 kg .

(   ) 2. Which of the following activity will leave a " carbon footprint" ？

①Watch TV

②Travel in a car

③Wash clothes in the washing machine

④Dry clothes in the sun

A.①②③       B.②③④

C.①③④       D.①②④

(   ) 3. Which of the following statement is NOT true?

A.  C0₂ is a greenhouse gas that can make the earth warm.

B.  If we turn off our TV sets when we are not using them,we can cut the number of C0₂.

C.  The less of a " carbon footprint" we leave ， the better our environment will become.

D.  Drying clothes in a dryer produces little C0₂.

(   ) 4. We can probably read this passage in a(n) _____ book.

A. geography    B. history

C. science    D. art

(      ) 5. What do you think is the best title of the passage?

A.  Say " No" to Air Pollution

B.  Cut the Carbon Footprint

C.  Fight against Greenhouse Gas

D.  How to Be Greener

Answer 1

l.C

2. A 由文章第三段可知，在太阳下凉衣服不会制造碳排量，排除④，故选A。

3. D

4. C本篇文章的内容是关于环保的，属于科学性短文，故选C。

5. B文章主要讲述什么是"碳足迹"以及如何减少"碳足迹"。故选B。