From supermarket bags to CDs, man-made waste has become a very serious problem. Recently, scientists may have found an unusual way to solve the problem. They say the waxworm (蜡虫), who eats beeswax as food, also appears to eat polyethylene, one of the strongest kinds of plastic.
Scientists have described the tiny worm’s ability as “very exciting”. Federica is a beekeeper. She put the waxworms into a plastic shopping bag which became full of holes a few minutes later. Then Federica did many more experiments. When 100 waxworms were put into a normal plastic bag, the holes began to appear in just 10 minutes.
According to the scientists, a kind of enzyme (酶) produced by the waxworm is the key. They also say that the waxworm turns the plastic into a different thing. It is used in making a material for cars. It is not clear if (是否) the waxworm can produce a large number of such things. Plastic is not a kind of natural food for the waxworm. “Wax is a kind of natural plastic. It is similar to polyethylene,” Federica said.
Scientists say they still need to know how wax is digested (被消化) in the waxworm. Federica said they would use the result to find a way to make the plastic waste disappear. “But we should not throw plastic bags into the environment, just because we now know how to break them down,” she added.
1.What makes the waxworm special?
A. Feeding on beeswax for a living.
B. Leading to a serious problem.
C. Being a kind of man-made insect.
D. Helping break down a kind of plastic.
2.What do the numbers mentioned in Paragraph 2 mainly show?
A. The waxworm dislikes being put into a shopping bag.
B. The waxworm makes the holes in order to take a breath.
C. The waxworm eats the plastic at an amazing high speed.
D. The waxworm is practising making holes in a plastic bag.
3.What is the relationship (关系) between plastic and the waxworm?
A. The waxworm likes to eat plastic because there is nothing else to eat.
B. The waxworm likes eating plastic because the wax is a kind of natural plastic.
C. People use special experiments to make the waxworm become interested in eating plastic.
D. The plastic is a kind of natural food for the waxworm to eat.
4.What will the scientists study next?
A. How they can make the plastic waste disappear.
B. How wax is different from polyethylene.
C. How wax is digested in the body of the waxworm.
D. How they can ask people not to produce plastic waste.
5.Who may be interested in reading this passage?
A. Insect lovers.
B. Environment protectors.
C. Shopping bag users.
D. Animal keepers.
八年级英语阅读单选中等难度题
From supermarket bags to CDs, man-made waste has become a very serious problem. Recently, scientists may have found an unusual way to solve the problem. They say the waxworm (蜡虫), who eats beeswax as food, also appears to eat polyethylene, one of the strongest kinds of plastic.
Scientists have described the tiny worm’s ability as “very exciting”. Federica is a beekeeper. She put the waxworms into a plastic shopping bag which became full of holes a few minutes later. Then Federica did many more experiments. When 100 waxworms were put into a normal plastic bag, the holes began to appear in just 10 minutes.
According to the scientists, a kind of enzyme (酶) produced by the waxworm is the key. They also say that the waxworm turns the plastic into a different thing. It is used in making a material for cars. It is not clear if (是否) the waxworm can produce a large number of such things. Plastic is not a kind of natural food for the waxworm. “Wax is a kind of natural plastic. It is similar to polyethylene,” Federica said.
Scientists say they still need to know how wax is digested (被消化) in the waxworm. Federica said they would use the result to find a way to make the plastic waste disappear. “But we should not throw plastic bags into the environment, just because we now know how to break them down,” she added.
1.What makes the waxworm special?
A. Feeding on beeswax for a living.
B. Leading to a serious problem.
C. Being a kind of man-made insect.
D. Helping break down a kind of plastic.
2.What do the numbers mentioned in Paragraph 2 mainly show?
A. The waxworm dislikes being put into a shopping bag.
B. The waxworm makes the holes in order to take a breath.
C. The waxworm eats the plastic at an amazing high speed.
D. The waxworm is practising making holes in a plastic bag.
3.What is the relationship (关系) between plastic and the waxworm?
A. The waxworm likes to eat plastic because there is nothing else to eat.
B. The waxworm likes eating plastic because the wax is a kind of natural plastic.
C. People use special experiments to make the waxworm become interested in eating plastic.
D. The plastic is a kind of natural food for the waxworm to eat.
4.What will the scientists study next?
A. How they can make the plastic waste disappear.
B. How wax is different from polyethylene.
C. How wax is digested in the body of the waxworm.
D. How they can ask people not to produce plastic waste.
5.Who may be interested in reading this passage?
A. Insect lovers.
B. Environment protectors.
C. Shopping bag users.
D. Animal keepers.
八年级英语阅读单选中等难度题查看答案及解析
There are many ways for us to reduce (减少) waste. For example, we can reuse paper and plastic bags. We can also recycle newspapers, glass, and cans (易拉罐) 1new things. Here are some useful 2 to reduce waste.
Write on both sides of paper
Many people write on only one side of their paper. Why not try using both sides? Some students only use half the pages of their 3 before getting new ones. Try to use up all the paper. People often give cards on birthdays or festivals. How about trying to 4 e-cards (电子贺卡) instead?
Don’t throw away your old batteries (电池)
Maybe you do not know that old batteries make the soil 5. This is because they have poisonous (有毒的) parts in 6. So, don’t throw away batteries. 7 them together. Try to use rechargeable (充电的) batteries for your games and CD players.
Give 8 all your unwanted clothes
There are many poor families in China. You may ask your mother to keep your unwanted clothes. Then you can pass them on to those poor children. You will feel happy that you are 9 someone else. Also, you can see 10 your friends or relatives (亲戚) want them before throwing them away.
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八年级英语完型填空困难题查看答案及解析
To protect the environment , supermarkets don't free _____plastic bags for shoppers .
A. take B. show C. provide D. carry
八年级英语单选题中等难度题查看答案及解析
Since several years ago, many supermarkets in China have _______ free plastic (塑料的) bags.
A. to stop providing B. to stop to offer
C. stopped to provide D. stopped offering
八年级英语单项填空中等难度题查看答案及解析
Since several years ago, many supermarkets in China have _______ free plastic (塑料的) bags.
A. to stop providing B. to stop to offer
C. stopped to provide D. stopped offering
八年级英语单项填空中等难度题查看答案及解析
Since several years ago, many supermarkets in China have _______ free plastic (塑料的) bags.
A. to stop providing B. to stop to offer
C. stopped to provide D. stopped offering
八年级英语单选题中等难度题查看答案及解析
Since several years ago， many supermarkets in China have _______ free plastic (塑料的) bags.
A. to stop providing B. to stop to offer
C. stopped to provide D. stopped offering
八年级英语单项填空中等难度题查看答案及解析
No free plastic bags in the supermarkets helps to __________ white pollution.
A. provide B. produce C. reduce D. Remove
八年级英语单项填空中等难度题查看答案及解析
Shanghai become the first city to enforce(执行) its strictest-ever waste law on July 1, 2019. According to the law, people are required to separate(分离) dry waste, wet waste, recyclable waste and harmful waste. Those who fail to separate waste face fines(罚款) of up to 200 yuan. Companies can be fined up to 5,000 yuan. What do people think of the law? Let's have a look.
Robert from the US:I totally agree! China is heading in the right direction and all the Chinese cities are expected to meet this strict standard! I am looking forward to seeing a cleaner, better and healthier China.
Kim from the UK: There’s no doubt that everyone should do something to protect the environment I’m all for it. But first of all, we have to make sure people know how to separate different kinds of waste.
Michael from Finland: It’s great.In Finland, all soft drinks and beer bottles have a deposit(押金). For example, a Coca-Cola bottle has a deposit in the price when you buy it.You get the money back when you return the bottle to the store. And all apartment buildings with more than five apartments must recycle paper, cardboard, glass and metal waste.
Jack from China: I don’t think it will achieve expected results, but things will improve for sure. Some people will start to realize the importance of separating waste and put waste in different bins. In my opinion, as long as we all pull together, we will be able to make our Earth a better planet.
1.What does Robert think of the waste law in Shanghai?
A.It’s totally useless. B.It’s much too strict.
C.It’s impossible to follow. D.It’s really necessary.
2.According to Kim,people should first be educated to ________.
A.spend money wisely B.separate waste correctly
C.clean up harmful waste D.It’s really necessary.
3.In ______ country, one has to pay a deposit when buying Coca-Cola.
A.Robert’s B.Kim's C.Michael's D.Jack’s
4.What can we learn from the reading?
A.The waste law in Shanghai is helpful. B.Robert would like to study in China someday.
C.Kim and Michael are from the same country. D.Jack is sure that the law will get good results.
5.What’s the reading mainly about?
A.Why to enforce the waste law? B.How to separate waste properly.
C.People’s opinions on the waste law. D.The importance of separating waste.
八年级英语阅读单选中等难度题查看答案及解析
—Where have you _________? —I’ve ________ the supermarket.
A. gone, gone to B. been, been to
C. gone, been at D. been, gone to
八年级英语单项填空简单题查看答案及解析