What is the meaning of the word 'environment'?

• môi trường

• bảo vệ

• vấn đề

• sự ô nhiễm

What does 'global warming' refer to?

• sự ấm lên toàn cầu

• các loài có nguy cơ bị tuyệt chủng

• dấu chân cac-bon

• khí ô- xi

What is the meaning of 'endangered species'?

• các loài có nguy cơ bị tuyệt chủng

• môi trường sống

• sự bảo vệ

• sự ô nhiễm

What does 'reduce' mean?

• giảm

• trồng

• cứu

• tái chế

I will be back in the office in a fifteen minutes............. there is not traffic jam.

• if

• unless

Her daughter will study abroad ........... she graduates from high school.

• when

• while

• before

• after

Exercise 2: Choose the word (A, B, C, or D) whose underlined part is pronounced differently from the others.

• reduce

• release

• forest

• process

Exercise 3: Choose the word (A, B, C, or D) whose main stress is different from the others in the group.

• pollution

• protection

• interest

• announcement

Choose the correct meaning of the word habitat.

• the place where people live

• the place where a tribe lives

• the place where a type of plant or animal lives

Choose the correct meaning of the word ecosystem.

• the way that someone behaves

• the way in which a person or a group of people lives and works

• the way living and non-living things in a particular area are related to each other