GRACIE
(n)the top layer of earth that plants grow in
soil
a group of animals or plants which could soon become extinct
endangered species
What is the population size for a megacity?
more than 10 million
1. According to studies, how many people will there be in the world?
8.5 billion
(n)somebody's or something's health and happiness
welfare
an unexpected situation which requires immediate action
emergency
(v) to store sounds, pictures or information on a camera, computer, smartphone or other device so that they can be used in the future
record
2. Thunder and lightning caused by heavy rain can damage electricity cables and stop ____________________.
2. The power supply/electricity supply
(n pl)a set of lights that control the movement of vehicles
traffic signals
What is the system called in which people drive to the outskirts of cities, park, and then take a bus to the city centre?
park-and-ride system
What percentages do always, usually and sometimes represent to show how often something happens?
100%
约 70-80%
约 30%
3. List two examples of how human activity leads to the extinction of species.
3. Possible answers: constructing houses, pollution, hunting, overfishing, farming, logging, building factories
(n)a type of machine which uses air or water to produce power
turbine
a deep valley with very steep sides
canyon
Lulu 故事剧场：What did Aurora turn her lover into?
蝉/蟋蟀
5. List the negative impacts of traffic congestion on drivers, cities, and the environment, one for each.
5. For drivers, it leads to health problems (stress/road rage); for cities, it leads to economic losses; for the environment, it leads to global warming/contributes to the greenhouse effect.
(adj)causing little or no damage to the environment and therefore able to continue for a long time
sustainable
a large white bird with long legs which lives near water
egret
(pl)the reports and news about an event that newspapers, TV and online media give.
media coverage
4. List two negative consequences of global warming.
4. Possible answers: the extinction of species, deglaciation, health problems (such as asthma), flooding/extreme weather