A problem for many students (for writing task 2 and speaking part 3) is that they don't have opinions. They don't have any idea what to write or say.
很多学生在雅思长作文和口语第三部分都会遇到一个问题：缺乏思路。他们不知道该说些什么，写些什么。

Look through the following list of common IELTS topics. Do you have opinions about them? Could you discuss them in an essay or in a conversation?
请看下列常见的雅思话题。你对这些话题是否有思路？你是否能在作文或对话中讨论它们？

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Animal Rights: testing on animals, vegetarianism, zoos
动物权利：动物试验，素食主义，动物园

Cities: urbanisation, problems of city life
城市：城市化，城市生活的问题

Crime: police, punishments/prisons, rehabilitation, capital punishment
犯罪：警察，处罚/监禁，改造，死刑

Education: studying abroad, technology in education, education in developing countries, higher education, home-schooling, bad behaviour, corporal punishment, single sex education, streaming (grouping children according to ability)
教育：留学，教育中的科技，发展中国家的教育，高等教育，在家上学，坏习惯，体罚，男女分校，按能力分班

Environment: global warming, impact of humans on the environment, solutions to environment problems, waste/rubbish, litter, recycling, nuclear power
环境：全球变暖，人类对环境的影响，环境问题的解决方案，废弃物，垃圾，垃圾回收，核能

Family: family size, working parents, negative effects on children, divorce, care for old people
家庭：家庭大小，双职工父母，对孩子的负面影响，离婚，照顾老人

Gender: gender and education, gender and work, women’s and men’s role in the family
性别：性别和教育，性别和工作，男人和女人在家庭中的角色

Genetic Engineering: positives, negatives, genetically modified foods
基因工程：优点，缺点，转基因食品

Global Issues: problems in developing countries, how to help developing countries, immigration, multi-cultural societies, globalisation
全球问题：发展中国家存在的问题，如何帮助发展中国家，移民，多文化社会，全球化

Government and Society: what governments can do, public services, censorship, video cameras in public places
政府与社会：政府能做什么，公共服务，审查制度，公共场所的摄像头

Guns and Weapons: gun ownership and possession, police and guns, nuclear weapons, armed forces
枪支和武器：枪支持有权，警察和枪支，核武器，武装力量

Health: diet, exercise, state health systems, private healthcare, alternative medicine, stress
健康：饮食，锻炼，国家卫生系统，私人医疗，另类医学，压力

Housing and Architecture: state housing, old buildings, modern/green buildings
房屋与建筑：公共住房，老建筑，现代/绿色建筑

International Language: English as an international language
国际语言：英语作为一门国际语言

Money: money and society, consumerism
金钱：金钱和社会，消费主义

Personal Development: happiness, success, nature or nurture
个人发展：幸福，成功，先天与后天

Sport and Leisure: professional/competitive sport, sport salaries, sport and politics
体育娱乐：专业/竞技体育，运动员工资，体育和政治

Tourism: positives, negative effects on environment, future of tourism
旅游：优点，对环境的不利影响，旅游行业的未来

Traditions and Modern Life: losing traditional skills, traditional customs
传统和现代生活：失去的传统技能，习俗

Transport: traffic problems and solutions, public transport, road safety
运输：交通问题和解决办法，公共交通，道路安全

Television, Internet and Mobile Phones: positives and negatives, Internet compared to newspapers and books
电视、互联网和手机：优点和缺点，互联网和报纸与书籍的比较

Water: importance of clean water, water supply, water should be free, bottled water
水：净水的重要性，供水，水应该免费，瓶装水

Work: same job for life, self-employment, unemployment, work/life balance, technology and work, child labour
工作：一生一份工作，自主创业，事业，工作和生活的平衡，科技和工作，童工

This is the topic list that I work with when preparing lessons, and it's the basis of my ebook. It's a good idea to print this list and try to work through it.
以上是我备课时使用的话题列表，也是我的电子书的基础。把它打印出来并好好准备是个好主意哦。