③ 炫耀 Third, only a private car can show a person’s social status/ achievement/ success/ prosperity in his or her career. 否定段的主题句：① However (Nonetheless/ Nevertheless/ But), there are some disadvantages of owing a private car/ Every coin has two sides. ② While enjoying the convenience that private cars bring us, we should not ignore the problem they create/ produce/ introduce/ make. ③ Despite/ In spite of/ For all the advantages, they brings their own disadvantages/ problems/ negative effects ④ Like anything else, private cars also have their own weakness/ limits. ⑤ However, private cars are not without shortcomings/ faults. ⑥ Yet other speak of the problems private cars have brought. They complain that...... ⑦ However, private cars may also bring with it problems our society had not previously faced. ⑧ Despite the increase in efficiency and convenience generated by private cars, the changes they bring could very well lead to potentially adverse consequences. 否定段的分论点： ① 占有空间 On the one hand, private cars take up/ occupy too much space. ② 交通事故 On the other hand, a driver should be careful/ cautious while driving, otherwise, car accidents are more likely to happen. ③ 污染环境 What’s more/In addition, private cars give off/ discharge/ release CO which pollute the environment/ air. 注意：所谓上义词是指抽象、概括和笼统的，就是比较superordinate的词.而下义词就是具体的东西，即subordinate的东西。 第四段(总结段)的写法： 我要收藏 ① Despite all the disadvantages mentioned above, I still think that the advantages outweigh/ are greater than the disadvantages. As for the above problem, I’m sure they will be settled by the scientists in the future/ It is only a matter of time for the problems to be solved. ② Unquestionably, the challenge of private cars means we all should consider how we can control them, so that they will not control us. ③ Whether the private cars are a blessing or a curse is a difficult question to answer, yet the desire for the comfort and independence a private car can bring will not be elminated. ④ Anyway/ Anyhow/ In any case, whether the effect is good or bad, one thing is certain: private cars have changed and will continue to change the way of our transportation, our leisure and our life.