参加2018.6.30号托福考试的小伙伴们，新鲜出炉的独立写作考前预测送给你们。

　　独立写作趋势分析

　　趋势一：科技类话题出现的可能性较大，包括science and technology, cellphone, computer, the Internet等，大家考前需多加练习。

　　趋势二：多关注抽象类话题，因为抽象类话题审题难度大，很多考生感觉没有头绪。对于此类题目，大家首先要学会抽象概念具体化，即将题干中的所有抽象概念的关键字具体化处理，再进一步讨论分析。

　　独立写作预测题目

　　1. If your teacher says something incorrect in a class, what will you do? 1. Interrupt your teacher right away 2. Keep silent 3. Correct your teacher after class.

　　Nowadays, teachers need to complete more demanding teaching assignments and to conduct research studies in order to get promoted or earn higher salaries. Sometimes, it is possible that teachers says something incorrect in class because they are too tired to make sure that every piece of knowledge is presented as they planned before class. In this situation, if students become aware of those errors in class, it is better for them to point those errors out after class instead of interrupting the teachers right away or keeping silent.

　　To begin with, if we interrupt the teachers right away, it is very likely that the teachers could not end the class on time. Before the class, most teachers need to prepare lesson plans and activities for that class, so that they could follow their teaching schedule and wrap up the course on time. Once we interrupt the teachers in class and point out the errors teachers made, new questions could be elicited. In this situation, teachers might have to answer more questions than they planned. Indeed, experienced teachers would arrange their class in a more flexible way. However, for novice teachers, it is not easy to keep the original schedule and they might fail to wrap the class on time.

　　Keeping silent is not recommended either. If no one tells the teacher about the errors, students will memorize the incorrect piece of knowledge, which will definitely harm their academic performance. In East Asia, the majority of students belong to the reserved type of learners, which means that they tend to remain silent even if they are aware of the mistakes that teachers make. Moreover, it would be considered as impolite if students point our teachers’ mistakes in a straightforward way in certain cultures, such as Chinese and Japanese. In this situation, students should still let their voice be heard, but they could discuss with the teachers after class, so that they will not feel embarrassed speaking up in class.

　　The best way to express our opinion and point out the teachers’ mistakes is to discuss with the teachers after class, especially in countries where speaking up loudly is not considered as appropriate. In this way, the teachers will realize their mistakes, and could correct the errors in the next class. More importantly, the teaching schedule in the class will not be influenced and the teachers could finish their lessons in time. In addition, both teachers and students will not feel offended or embarrassed.

　　Based on the above discussion, compared with interrupting teachers in class or keeping silent, it is more appropriate to save our questions and discuss the questions with teachers after class.

　　2. Some people say that we should use clean energy to protect the environment, but others say that we should use traditional energy sources such as coal and oil because they are less expensive. What is your opinion?

　　Nowadays, many countries in the world are facing serious problems of pollution. It has been advocated by experts that the governments should encourage the use of clean energy to protect the environment. However, some large-scale industries refuse to do so, because clean energy sources are too expensive. As far as I am concerned, it is better to explore and use clean energy though it might cost lots of money for now.

　　To start with, using traditional energy has already caused air pollution and water pollution in the past, such as the haze and oil spill, which are harmful to our living environment as well as the habitats of ocean creatures. Before it is too late, we should try to avoid more pollution problems and explore clean energy. Besides, the amount of existing traditional energy sources are very limited. Even if we continue using them, someday we will run out of coal and oil. Sooner or later the exploration and application of clean energy will become necessary for human beings.

　　Admittedly, to explore and use clean energy will cost a large amount of money. For example, teams of professionals should be formed; new research centers need to be built; hundred times of research studies need to be conducted. All those efforts and investments are of course not for free. The scientists and experts will not work without being paid, and the new equipment as well as facilities in research centers must be expensive. However, compared with solving environmental problems in the future, it is much cheaper to start using clean energy from now on. In the history, there are numerous examples that people suffered from natural disasters because of over exploitation. Even for now, people in big cities have to bear the haze, or PM 2.5, which is caused by cars’ gas emission. It is not exaggerated to say that the majority of environmental issues are originated from human exploitation. If we use clean energy, which might costs lots of money though, we could save the money to solve environmental issues in the future. More importantly, there will be less pollution problems, and people will do not have to suffer from more disasters resulted from human activities.

　　Based on the above discussion, it is better to explore and use clean energy than traditional energy. In the future, the legislative institution should establish laws to restrict the use of traditional energy, and reward the exploration of clean energy. Further, governments and large-scale industries should follow the laws and protect the environment.

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