（山西省金谷中学2010届高三第一次练兵考试）

Every time you go to the supermarket, you come away with your purchases in plastic bags. But wouldn’t it be kinder to the environment if you asked for paper bags instead?

The answer is not the easy as it might seem. Environmentalists say there are drawbacks to using both plastic bags and paper bags.

According to the American Plastics Council 80 percent of groceries in the US are packed in plastic bags.

 “The numbers are becoming huge,” said Vincent Cobb, a businessman from Chicago who set up “reusable bags. com” on the Internet. He notes that consumers use between 500 billion and 1 trillion plastic bags per year worldwide.

Some experts believe that all these bags harm the environment. Plastic takes hundreds of years to break down and, as it does so, poisonous materials are released into the water and soil.

Further damage is caused if plastic bags enter the sea. For example, endangered sea turtles cannot tell the bags from jellyfish(水母), their main source of food, and often choke on（噎死 ）them.

Floating plastic bags have been spotted as far north as the Arctic Ocean and as far south as the southern end of South America. One expert predicts that, within ten years, plastic bags will wash up in Antarctica!

However, this kind of bag does have its advantages.

 “Plastic grocery bags are some of the most reused things around the house,” explained Laurie Kusek of the American Plastics Council.

According to the Film and Bag Federation, a trade group in the US plastics industry, paper bags use more energy and create more waste than plastic bags. Plastic bags require 40 per cent less energy to produce and cause 70 per cent less air pollution, the group explained. They also release as much as 94 percent less waste into the water than paper ones.

But paper bags do break down more quickly than plastic bags. They don’t endanger wildlife, either.

So what should we do? One possible solution would be to use biodegradable(可降解的)plastic bags. But until biodegradable technology improves, it might be easier to pack things you buy in reusable cloth bags.

44. The best title of the passage is _____.

A. Paper Causes Less Pollution          B. Plastic Causes Less Pollution

C. Paper and Plastics Cause Pollution      D. Paper Bags Break Down More Quickly

45. The underlined word “drawbacks” might mean “_____”.

A. Advantages       B. disadvantages    C. air pollution       D. waste

46. According to the passage, which of the following is NOT true?

A. Plastic takes longer to break down than paper.

B. Sea turtles usually mistake the plastic bags for jellyfish.

C. Paper bags require less energy than plastic bags.

D. You’d better pack things in reusable cloth bags.

47. Which of the following shows that paper bags are better than plastic ones?

A. Paper bags take less time to rot. B. Paper bags cause less air pollution.

C. Paper bags are more reusable. D. Paper bags cause less water pollution.

Every time you go to the supermarket, you come away with your purchases in plastic bags. But wouldn’t it be kinder to the environment if you asked for paper bags instead?
The answer is not the easy as it might seem. Environmentalists say there are drawbacks to using both plastic bags and paper bags.
According to the American Plastics Council 80 percent of groceries in the US are packed in plastic bags.
“The numbers are becoming huge,” said Vincent Cobb, a businessman from Chicago who set up “reusable bags. com” on the Internet. He notes that consumers use between 500 billion and 1 trillion plastic bags per year worldwide.
Some experts believe that all these bags harm the environment. Plastic takes hundreds of years to break down and, as it does so, poisonous materials are released into the water and soil.
Further damage is caused if plastic bags enter the sea. For example, endangered sea turtles cannot tell the bags from jellyfish(水母), their main source of food, and often choke on them.
Floating plastic bags have been spotted as far north as the Arctic Ocean and as far south as the southern end of South America. One expert predicts that, within ten years, plastic bags will wash up in Antarctica!
However, this kind of bag does have its advantages.
“Plastic grocery bags are some of the most reused things around the house,” explained Laurie Kusek of the American Plastics Council.
According to the Film and Bag Federation, a trade group in the US plastics industry, paper bags use more energy and create more waste than plastic bags. Plastic bags require 40 per cent less energy to produce and cause 70 per cent less air pollution, the group explained. They also release as much as 94 percent less waste into the water than paper ones.
But paper bags do break down more quickly than plastic bags. They don’t endanger wildlife, either.
So what should we do? One possible solution would be to use biodegradable(能被生物分解的)plastic bags. But until biodegradable technology improves, it might be easier to pack things you buy in reusable cloth bags

1. 1.

   The best title of the passage is _____

   1. A.
      Paper Causes Less Pollution
   2. B.
      Plastic Causes Less Pollution
   3. C.
      Paper and Plastics Cause Pollution
   4. D.
      Paper Bags Break Down More Quickly
2. 2.

   The underlined word “drawbacks” might mean “_____”

   1. A.
      Advantages
   2. B.
      disadvantages
   3. C.
      air pollution
   4. D.
      waste
3. 3.

   According to the passage, which of the following in NOT true?

   1. A.
      Plastic takes longer to break down than paper
   2. B.
      Sea turtles usually mistake the plastic bags for jellyfish
   3. C.
      Paper bags require less energy than plastic bags
   4. D.
      You’d better pack things in reusable cloth bags
4. 4.

   Which of the following shows that paper bags are better than plastic ones?

   1. A.
      Paper bags take less time to rot
   2. B.
      Paper bags cause less air pollution
   3. C.
      Paper bags are more reusable
   4. D.
      Paper bags cause less water pollution

Lettuce (莴苣)has been eaten for over 4,500 years, and was known to the Egyptians, Greeks and Romans. Now, people in some countries start the meal with lettuce as part of a salad. There are hundreds of kinds of lettuce. The main ones include head lettuce, such as iceberg, leaf lettuce _,Boston, bibb and romaine.

Experts say lettuce is one of the easiest crops to grow in your garden. The best time to plant the seeds is during cool weather. The University of Illinois Extension advises that the best planting temperature is 15 ⁰C.

Lettuce seeds are small, so do not place them too deep in the ground. If you plant some seeds every week or two, you will have crops ready to eat one after another.

To start the seeds inside, you can use a seed tray in your home or other shelter. This container should be deep enough to hold at least three centimeters of soil or more. There should be about one centimeter of space between the soil and the top of the container. The container should have holes in the bottom so the extra water can flow out. Drop the seeds over the surface and cover them lightly with soil. If the soil is not already a little wet, give it some water. But do not drown the seeds.

Next, cover the seed tray with paper. When the seedlings have come up far enough to touch the paper, take it off. You can transplant the seedlings into the garden when they are about two to three centimeters tall. Do this when the weather is not too hot and not too cold. Take out as much soil as you can with the seedlings, Then dig a hole in the ground bigger than the lettuce roots. Water the plants but not too heavily.

Harvest leaf lettuces when the leaves are big enough to eat. Pull the leaves from the outside of the planting so the inside leaves will keep growing. Or, you can cut off the whole plant. Leave about two or three centimeters above the ground so the plant will re-grow. Cut off head lettuces at ground level.

Lettuce is best when served fresh, so make a salad and enjoy. Experts say lettuce is one of the easiest crops to grow in your garden.

1.Which of the following shows the right order of planting lettuces?

a.Dig a hole in the ground bigger than the lettuce roots.

b.Drop the seeds over the surface.

c.Water the plants.

d.Cover the seed with soil.

e.Take off the paper.

f.Transplant the seedlings into the garden.

A. b, d, e ，f, a, c    B. a, b ，c, d ，e, f

C. d, e，f, b，a，c   D. b，c, d，e，f，a

2.The underlined word “seedlings” in paragraph 5 means______.

A.containers     B.seeds     C.young plants D.layers

3.When eating Iettuce₅ you’d better ______ so that it tastes best.

A.store it in plastic bags     B.eat the inside leaves

C.wrap it in paper      D.eat while it is fresh

4.What can we infer from the passage?

A.Lettuce is the easiest crop to grow in your garden.

B.The lettuce is not hard to plant and store.

C.We can plant lettuce in a two-centimeter-high tray.

D.We should water lettuce at least twice a day.

Every time you go to the supermarket, you come away with your purchases in plastic bags. But wouldn’t it be kinder to the environment if you asked for paper bags instead?

The answer is not the easy as it might seem. Environmentalists say there are drawbacks to using both plastic bags and paper bags.

According to the American Plastics Council 80 percent of groceries in the US are packed in plastic bags.

“The numbers are becoming huge,” said Vincent Cobb, a businessman from Chicago who set up “reusable bags. com” on the Internet. He notes that consumers use between 500 billion and 1 trillion plastic bags per year worldwide.

Some experts believe that all these bags harm the environment. Plastic takes hundreds of years to break down and, as it does so, poisonous materials are released into the water and soil.

Further damage is caused if plastic bags enter the sea. For example, endangered sea turtles cannot tell the bags from jellyfish(水母), their main source of food, and often choke on them.

Floating plastic bags have been spotted as far north as the Arctic Ocean and as far south as the southern end of South America. One expert predicts that, within ten years, plastic bags will wash up in Antarctica!

However, this kind of bag does have its advantages.

“Plastic grocery bags are some of the most reused things around the house,” explained Laurie Kusek of the American Plastics Council.

According to the Film and Bag Federation, a trade group in the US plastics industry, paper bags use more energy and create more waste than plastic bags. Plastic bags require 40 per cent less energy to produce and cause 70 per cent less air pollution, the group explained. They also release as much as 94 percent less waste into the water than paper ones.

But paper bags do break down more quickly than plastic bags. They don’t endanger wildlife, either.

So what should we do? One possible solution would be to use biodegradable(能被生物分解的)plastic bags. But until biodegradable technology improves, it might be easier to pack things you buy in reusable cloth bags.

64. The best title of the passage is _____.

   A.  Paper Causes Less Pollution          B. Plastic Causes Less Pollution

   C.  Paper and Plastics Cause Pollution     D. Paper Bags Break Down More Quickly

65. The underlined word “drawbacks” might mean “_____”.

A. Advantages    B. disadvantages    C. air pollution   D. waste

66. According to the passage, which of the following in NOT true?

A. Plastic takes longer to break down than paper.

B. Sea turtles usually mistake the plastic bags for jellyfish.

C. Paper bags require less energy than plastic bags.

D.You’d better pack things in reusable cloth bags.

67. Which of the following shows that paper bags are better than plastic ones?

A. Paper bags take less time to rot.    B. Paper bags cause less air pollution.

C. Paper bags are more reusable.      D. Paper bags cause less water pollution.