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 area

*  TV sets and DVD players produce 723 kg 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 185 kg 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,选择最佳答案。

(   ) 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. 723kg

(   ) 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 statements 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. Which 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 Gases

D.    How to Be Greener

 The Beijing Underground Line Ten will soon have 40 " reverse vending machines(有偿自动回收机)"-The machines will 1 people for their empty plastic bottles.

  "We have placed two such machines at Beijing Capital International Airport and four at the city's underground stations. They have been well received so far, " said Feng Juan,a ( n ) 2from the company which makes the machines. " People are encouraged and paid for turning 3 into money. More than 30 , 000 empty bottles have been collected 4 December," she said.

  If something else,such as waste paper,is thrown 5the machine, the machine will spit it out.

"With the 6of the government,the reverse vending machines will be introduced to colleges and universities soon, ”said Feng.

  The company is also 7about covering more recycling materials,including used books and teaching materials.

  "Long-term plans 8about 2 ,000 reverse vending machines to be placed throughout the city in the next few 9 , including 80 at colleges and universities, shopping malls,communities and office buildings”,said Feng.

  Chang Tao,director of the company,said that 10the new project worked well in the city,the company would consider offering the waste-to-treasure service to other developed cities in the eastern part of China.
(   ) 1. A. provide    B. thank

       C,prepare D. pay

(   ) 2. A. secretary    B. engineer

      C. artist    D. teacher

(   ) 3. A. waste    B. straw

      C. cloth    D. resource

(   ) 4. A. of B.for

     C. since    D. still

(   ) 5. A. into    B. onto

      C. off    D. away

(   ) 6. A. decision    B. control

      C. agreement    D. support

(   ) 7. A. caring    B. knowing

      C. thinking    D. talking

(   ) 8. A. afford    B. require

       C. manage    D. advise

(   ) 9. A. hours    B. days

       C. weeks    D. years

(   ) 10. A. if    B. once

       C.though    D. because

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