剑桥雅思15 - 学术类 - 测试1 - 听力 - 第4部分

a place or building that is meant to provide protection against danger or bad weather

any living thing that is able to move on its own, such as an animal, fish, etc.

a sweet, liquid substance produced by flowers and used by insects as a source of energy

the existence of a range of different plants and animals in a natural environment

a small living organism that causes disease or infection

something that has specific chemicals or causes a chemical reaction that destroys harmful microorganisms such as bacteria

to obtain or isolate a specific substance or component by distillation or other methods of separation

causing a feeling of distress, fear, or unease

before the expected, appropriate, or natural time

in small amounts over a long period of time

conforming to the expected standards

concerning or used in the scientific field of chemistry

the process of building or creating something, such as structures, machines, or infrastructure

to pull something in or draw it toward you by using a sucking motion or force

a natural mineral found in the earth, food, and the body that helps make healthy blood

to introduce a liquid, such as a drug or vaccine, into the body of a person or animal using a syringe

to regain complete health after a period of sickness or injury

to a specific degree, particularly when compared to other similar things

a group of organisms of the same species inhabiting a given area

to go and reside in a place as a permanent home

(of a cell, gland, or organ) to produce and release a liquid substance in the body

a mixture of different liquids

to grow in a healthy and strong way

causing a negative consequence or cost to someone or something in order to benefit another

to put forward a suggestion, plan, or idea for consideration

trees and plants in general, particularly those of a specific habitat or area

more than average, but not too much

to grow in amount or number rapidly

the different elements that form something or the arrangement of these elements

a substance such as a vitamin, protein, fat, etc. that is essential for good health and growth

relating to the original inhabitants of a particular region or country, who have distinct cultural, social, and historical ties to that land

any of the large land masses of the earth surrounded by sea such as Europe, Africa or Asia

‌a thick, tropical forest with tall trees and consistently heavy rainfall

associated with or characteristic of the tropics, regions of the Earth near the equator known for their warm climate and lush vegetation

containing plenty of things or people in a small space

the brush (small trees and bushes and ferns etc.) growing beneath taller trees in a wood or forest

a white or gray powder made by heating certain types of rocks and is commonly used in building materials, making soil less acidic, or treating water

a fire that spreads quickly through dry grass, trees, or bushes in the countryside