1) Plastic bags are a big problem for our oceans. Many people use plastic bags every day, but when they are thrown away, they often end up in the sea. This happens because (1)________. a) A. plastic bags are not easy to break down b) B. plastic bags are easy to be broken down c) C. it takes a fortnight to break down plastic d) D. it needs several days to be broken down 2) They can float in the water for a long time and travel far from (2)________. a) A. where they were thrown away b) B. which they throw away c) C. where they are thrown away d) D. which they are throwing away 3) In the ocean, (3)________. For example, turtles might mistake plastic bags for jellyfish and eat them. a) A. plastic bags can cause serious harm to sea animals b) B. plastic bags can do serious harm to landfill animals c) C. plastic bags cannot cause serious harm to the ocean d) D. plastic bags can do seriously harm to ocean creatures 4) This can make the turtles sick or even kill them. Fish and other sea creatures can also get tangled in plastic bags, (4)________. a) A. which will protect them b) B. that is hurting or killing them. c) C. that is going to protect them d) D. which can hurt or kill them. 5) Moreover, as plastic bags break into tiny pieces, they turn into microplastics. (5)________ can spread throughout the ocean and mix with the water. a) A. That tiny pieces b) B. This small piece c) C. These tiny pieces d) D. Those small piece 6) (6)________, we can use fewer plastic bags and choose reusable bags instead. By doing this, we can help keep our oceans clean and protect the animals that live there. a) A. Helping solve that problem b) B. To help solve this problem c) C. Helped solve that problem d) D. To helping solve this problem 7) Many fruits (7)________ with bad chemicals called fertilizers. These chemicals help the plants grow faster. a) A. are grown b) B. is grown c) C. was grown d) D. were grown 8) This means the chemicals get inside the fruit and people eat them. This is not (8)________. a) A. healthy b) B. unhealthy c) C. health d) D. healthiness 9) In addition, some fruits have a lot of these bad chemicals. (9)________, apples, strawberries, and grapes often have many chemicals from the fertilizers. a) A. However b) B. Therefore c) C. Although d) D. For example 10) These chemicals can (10)________ harm to human’s bodies. a) A. have b) B. get c) C. do d) D. take 11) As a result, it is better to buy fruits that are grown without the bad fertilizers. These are called (11)________ fruits which do not have the harmful chemicals. a) A. chemical b) B. organic c) C. global d) D. sustainable 12) Organic farmers do not use bad chemicals to grow food. They use natural ways to make the food grow.->What does the word “they” in the 1st paragraph refer to? a) A. food b) B. chemicals c) C. people d) D. farmers 13) We can help the environment by choosing to buy organic food.->The word “choosing” in the last paragraph is closest in meaning to a) A. adopting b) B. calculating c) C. following d) D. considering 14) The word “cut down on” is opposite in meaning to.... a) A. increase b) B. decrease c) C. reduce d) D. limit 15) Instead of throwing away an old shirt, we can turn it into a cleaning cloth.->The word “it” refers to ______. a) A. an old thing b) B. an old shirt c) C. a piece of cloth d) D. a cleaning cloth 16) Recycling is turning old items into new ones. We can recycle paper, plastic, glass, and metal. Many communities have recycling bins where we can put our recyclable items. Recycling helps to save natural resources and reduces the amount of trash in landfills. -> Recycling helps to ______________. a) A. increase natural resources b) B. limit the amount of waste c) C. turn old items into new ones d) D. recycle paper, plastic, glass, and metal 17) Using a refillable bottle instead of buying bottled water, or turning off lights when we leave a room.->The phrase “refillable bottle” means that ______. a) A. this bottle can be used once only b) B. this bottle can be used again c) C. this bottle can be harmful d) D. this bottle can be harmless 18) We can ______ a cleaner lifestyle by recycling our waste. a) A. calculate b) B. create c) C. estimate d) D. adopt 19) It's important to cut down ____ plastic use to help the planet. a) A. in b) B. at c) C. on d) D. by 20) Three years ago, my local environment __________ by a paper company which released tons of waste into Hau river. a) A. is polluted b) B. were polluted c) C. was polluted d) D. are polluted 21) I think people _______ polluting the environment in the near future. a) A. is going to stop b) B. will stop c) C. are going to stop d) D. will be stopping 22) Solar panels are great energy ________ for our homes. a) A. resources b) B. materials c) C. encourages d) D. appliances

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