剑桥雅思15 - 学术类 - 测试3 - 阅读 - 第2段

related to the beginning of a series or process

any of the available possibilities that one can choose from

related to the sun

utility to warm a building

a flat, thin sheet made of metal, wood, glass, or plastic, often used for structural, decorative, or functional purposes

a specific, targeted segment of the market focused on a particular product or service for a specific group of people

water that comes out of a faucet or a tap, usually treated to be safe for drinking and cooking

a business activity that is mostly very risky

to link or connect someone or something to another device or system

to become accessible

relating to or belonging to the home, household, or family life

easily carried or moved from one place to another

to clean and improve the quality of a substance by removing impurities and increasing its concentration

not fixed and able to move or be moved easily or quickly

the removal of salt (especially from sea water)

something kept back or saved for future use or a special purpose

able to continue for a long period of time

a country that is seeking industrial development and is moving away from an economic system that is based mainly on agriculture

a nation with a high level of industrialization, a strong economy, and a high standard of living for its people

involving a significant numbers of people or a vast area

the amount of carbon dioxide that an organization or person releases into the atmosphere

water that is safe to drink or use for food preparation, meeting government health standards for potability

to provide the necessary nourishment or resources needed for survival or well-being

a characteristic of something that is up for sale that makes it attractive to potential customers

a piece of equipment, usually placed on a roof, that absorbs the energy of sun and uses it to produce electricity or heat

a closed vessel in which water is heated to create steam or hot water, used for heating buildings, producing electricity, or powering machines

to stop or hold something in place, preventing it from moving

(physics) any of the smallest units that energy or matter consists of, such as electrons, atoms, molecules, etc.

water that has been boiled, collected as vapor, and then condensed back into a liquid to remove impurities and dissolved substances

a type of fuel made from crude oil, used in diesel engines found in trucks, buses, trains, and some cars

a person who owns and usually resides in a house or property

capable of providing everything that one needs, particularly food, without any help from others

double in size, amount, or degree

in a total and complete manner

to allow someone to use or occupy property for a specified period of time in exchange for payment, as defined by a contract

to picture something in one's mind

the act of utilizing something effectively for a specific purpose or task

involved in or related to helping people who are in need to improve their living conditions

the natural light coming from the sun

to provide or supply something with the necessary material, resources, or energy to function