Have you ever seen a greenhouse? Most greenhouses look like a small glass house.

Greenhouses are used to grow plants, especially in winter.Greenhouses work by trapping heat from the sun, the glass panels(板) of the greenhouse let light in, but keep heat from escaping.This causes the greenhouse to heat up, much like the inside of the parked in sunlight, and keeps the plants warm enough to live in winter.

The earth's atmosphere is all around us.It is the air that we breathe.Greenhouse gases in the atmosphere behave much like the glass panels in a greenhouse.Sunlight enters the Earth's atmosphere, passing through the blanket of greenhouse gases.As it reaches the Earth's surface, land, water, and biosphere(生物圈), they take up the sunlight's energy.Once the heat is taken up, this energy is sent back into the atmosphere.Some of the energy passes back into space, but much of it remains trapped in the atmosphere by the greenhouse gases, causing our world to heat up.

The greenhouse effect is important.Without the greenhouse effect, the Earth would not be warm enough for humans to live.But if the greenhouse effect becomes stronger, it could make the earth warmer than usual.Even a little extra warming may bring problems to humans, plants, and animals.

根据材料内容选择最佳答案,并将其标号填入题前括号内。

1.What are greenhouses used for?

A. Growing plants, especially in summer.

B. Growing plants, especially in winter.

C. Heating the house for people to live.

D. Cooking in winter.

2.Why is the temperature in the greenhouse higher than that outside?

A. Because greenhouse can heat itself.

B. The plants inside can produce heat.

C. The glass penal can produce heat.

D. The greenhouse can trap heat from the sun.

3.The underlined word atmosphere probably means________.

A. 大气层 B. 环境 C. 生态链 D. 表面

4.If we didn't have the greenhouse effect,what would happen?

A. We wouldn’t have enough air to breathe.

B. We would have problems, such as global warming.

C. The earth would become too hot to live.

D. The earth wouldn’t be warm enough for us to live.

5.From the article mainly we can learn_____________.

A. The green house has glass penals which can trap heat from the sun.

B. Greenhouses are used to grow plants.

C. Greenhouses are actually greenhouse gasses.

D. What the greenhouse effect is and its influence.

Sydney Tower

Address: 100 Market St, Sydney

Phone: 02 9333 9222

Fax: 02 9333 9203

Open time: 9:00 am to 10:30 pm (Sundays to 11: 30 pm)

Ticket: $ 60 [for an adult (成年人) ]

$ 30 (for a child)

Website: www_______sydneytower, com.

How to get there: train to Town Hall Station and a short walk along Market Street

How to book tickets: by phone/fax or through the web

Attraction: Sydney's best views are just the beginning! Sydney Tower takes you to the

highest point above Sydney for exciting 360° views of our beautiful city.

1.If you want to book (预订) a ticket to Sydney Tower, you can_______.

A. email Sydney [email protected] hotmail, com.

B. phone 02 9333 9203

C. search www. sydneytower, com.

2.Johnson wants to go to Sydney Tower with his child. He will pay_______.

A. $ 60 B. $ 90 C. $ 120

3.Last Sunday, Mr. Deng went to visit Sydney Tower. He had to get down the tower .

A. After 11:30pm B. Before 11:30pm C. At 10:30pm

4.Sydney Tower is_______ in Sydney, Australia,

A. the busiest street B. the biggest station C. the highest point

5.The passage above is probably________.

A. a piece of news B. a conversation C. an advertisement

Off the Beaten Cart Path

The best-selling travel book which includes over 200 new places of interest, over 200 new full-colour photographs, and all-new, up-to-date maps. It includes over 1,000 of the United States most must-see destinations (目的地).

Cover price: $30.00 Our price: $19.80

Parents

The most popular magazine for parents who want to raise smart and loving children. It has child development guidance, advice on your child’s health and safety, and the best way to encourage your child’s learning.

Cover price: $26.00 Our price: $12.60

Best Weekend Projects

The projects are chosen from 80 special ideas to create an unusual living space. They are practical, as well as creative. They will improve your home and yard and can be made on weekends. And the most important of all, they are easy to follow.

Cover price: $17.95 Our price: $13.90

Lucky

The shopping magazine with the best busy, and the fashion tips. You’ll need them before you go to the stores. What makes Lucky really special is that it gives you the information you need before anyone else has it.

Cover price: $18.50 Our price: $15.50

1.Which of the following saves the most money?

A. Off the Beaten Cart Path. B. Parents.

C. Beat Weekend Projects. D. Lucky.

2.Who may be interested in the book Off the Beaten Cart Path?

A. A young lady who likes going shopping.

B. A patent who has just got a new-born baby.

C. A husband who wants to get his home improved.

D. A person who is interested in traveling in America.

3.What makes Lucky special according to the passage?

A. It’s cheap and easy to find in the city.

B. It has some fashion tips for the readers.

C. It introduces some best products in the stores.

D. It provides the latest information for the shoppers.

4.As to the book Best Weekend Projects, which of the following is NOT true?

A. The projects are creative. B. The projects are easy to follow.

C. The projects are practical. D. The projects are done on weekdays.

5.What do you think the passage is?

A. An advertisement. B. A notice. C. A story. D. A report.

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