重點詞伙：academic performance（students' levels of attainment. multimedia tools. show perseverance. generate huge profits. environmental impact. provide work placements. practical skills. make a decent living. gain qualifications. run an organisation. make redundant. go green. cut down on the use of energy. cast a long shadow on their career. a prison sentence. criminal record. a clear/direct link. clear-up operation. create a pleasant environment. put/impose restrictions on. buy more than they need. suffer health problems. respiratory diseases. afforestation. mechanisation. censor news reports. give an exaggerated account of. clerical workers. promotional opportunities. world famous. 81.There are some enonomically deprived communities in large cities. 82.There is no clear link between grouping students by ability and their levels of attainment. 83.Using multimedia tools can improve students' concentration and keep them interested. 84.The achievement of celebrities can motivate young people to study hard and show perseverance. 85.Opening new branches in developing countries can reduce the cost of production and generate huge profits. 86.Small lifestyle changes can make a huge difference and reduce the environmental impact of our daily activities. 87.It is diffucult for students to improve practical skills if schools do not provide work placements. 88.University students cannot make a decent living even though they acquire qualifications. 89.Running an organisation in today's world can be a daunting task because competition is stiff and technology is developing rapidly. 90.The fact is that some jobs have been made redundant because of mechanisation. 91.It is true that many people have chosen to go green and cut down on the use of energy. 92.A prison sentence can be damaging to young people due to the fact that the criminal record cast a long shadow on their career. 93.I believe that there is a direct link between fast food advertisements and rising levels of obesity. 94.Money can be used for clean-up operation which can help create a pleasant environment. 95.It is necessary to impose restrictions on those advertisements which encourage consumers to buy more than they need. 96.Afforestation can help to improve air quality, which can reduce the risk of suffering some health problems such as respiratory diseases. 97.Authorities should censor those news reports which give an exaggerated account of some social problems. 98.It is the reason why many clerical workers today usually suffer health problems. 99.Many employees are willing to work for compinies where they can obtain promotional opportunities. 100.Many young people have chosen to study in English-speaking countries, where they can study at some world famous universities.（過去完成時）