Plastic is a material we use every day. The first plastics were made more than 100 years ago from parts of plants. Plastics are now made from oil, coal and natural gas. We are using up these things so fast that the Earth’s supplies may run out. Because of this, scientists are investigating new ideas for making plastics from plants such as sweet potato, bamboo and flax.

Things made from plastic can be useful for people but bad for the planet. Some plastics can last for a long time without wearing out, and can be difficult to get rid of when they are not needed. They can remain in rubbish dumps for hundreds of years.

Recycling is a good way to solve the problems of unwanted plastics. Recycled waste materials can be used again to make new products. This can be difficult as different types of plastic need to be recycled in different ways. Some kinds of plastics can be melted down and used to make new things such as bags and bottles. Others can be made into fibres for clothing.

Another way to protect the environment is to use canvas bags for shopping instead of plastic ones. A lot of plastic objects can also be reused. Plastic bottles can be refilled many times, rather than thrown away once they are empty. Unwanted plastic goods such as CDs and toys can be sold or given away to charity shops.

36. What is the passage mainly about?

A. Plastic effects and solutions to the problem.        

B. Plastic history and its usefulness.

C. The ways to reduce the harm of plastic.                

D. Materials that plastic is made of.

37. The phrase “get rid of’ in paragraph 2 is closest in meaning to ___________.

A. remove                B. create                C. keep                        D. make

38. According to the passage, things made from plastic are bad for our environment because.

A. they are dangerous to marine life

B. they are very useful for people

C. plastics can remain for a long time without decomposing

D. people reuse plastic objects before recycling them

39. The word “they” in paragraph 4 refers to ___________.

A. objects                B. canvas bags                C. toys                        D. plastic bottles

40. According to the text, which of the following is NOT TRUE about ways to protect the environment?

A. Recycled waste materials can be used again to make new products.

B. People should use canvas bags for shopping instead of plastic ones.

C. Unwanted plastic goods can be sold or given away to charity shops.

D. We use as many plastic objects as possible.

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