Bài tập Tiếng Anh lớp 8 Unit 7 có đáp án, bộ 1

If people ____ more trees, the air will be fresher.

• Aplanted
• Bplant
• Cwill plant
• Dare planting

Do not throw empty plastic bottles away; put them into the ____.

• Aforest
• Bocean
• Criver
• Drecycle bin

The lake is heavily contaminated, ____ no fish can survive here.

• Aso
• Bbecause
• Csince
• Dalthough

Cutting down forests destroys the natural ____ of many wild animals.

• Aproduct
• Bweather
• Chabitat
• Dclimate

You cannot reduce your household waste ____ you start reusing shopping bags.

• Aif
• Bbecause
• Cso
• Dunless

Plastic items take hundreds of years to ____ naturally in the soil.

• Adecompose
• Bpollute
• Cprotect
• Ddump

Our school recently started a green project to protect the local environment. Students are encouraged to use [7] products like bamboo bottles instead of single-use plastic. If everyone joins hands, our school [8] a much cleaner place. Every Friday afternoon, volunteers collect [9] around the schoolyard and put plastic bottles into the recycle bin. Many marine animals die [10] factories contaminate rivers and oceans with chemical waste. By taking small actions every day, we help [11] precious wildlife and prevent rare species from becoming extinct.

Choose the best option for position [7].

• Aecofriendly
• Bdangerous
• Ccrowded
• Dindustrial

Choose the best option for position [8].

• Abecame
• Bwill become
• Chad become
• Dbecomes

Choose the best option for position [9].

• Asmoke
• Bair
• Clitter
• Dnoise

Choose the best option for position [10].

• Aalthough
• Bbut
• Cbecause
• Dso

Choose the best option for position [11].

• Ahunt
• Bharm
• Cdamage
• Dconserve

Air ____ has become a severe problem in many big cities. (POLLUTE)

The local community is actively involved in the ____ of rare birds. (CONSERVE)

Illegal hunting has driven many rare animals to the brink of ____. (EXTINCT)

We cannot save energy ____ we switch off electric devices after use.

Factories must not ____ toxic chemicals into nearby rivers.

Sắp xếp các cụm từ thành câu điều kiện hoàn chỉnh.

Rearrange the segments to make a complete sentence showing cause and effect.

If we protect the national park, wild animals do not lose their natural habitat in the future.

• Aprotect
• Bdo not
• Cnatural
• Din the future

Because of the air was heavily contaminated, local residents had to wear masks outdoors to protect their health.

• Aof the air was
• Blocal residents
• Cwear masks
• Dtheir health