unit4写作导学案.doc

Book3 unit4 Astronomy: the science of the stars Peroid4 写作（解决问题类说明文） To start with, a vast population leads to heavy traffic. The second reason is the increasing number of vehicles, especially private cars. The last but not least reason is that some people are not aware of the importance of obeying traffic regulations. To deal with this, some people suggest that more roads should be built in order to speed up the flow of the traffic, and others insist that more public bus routes are required in order to limit the number of private cars. But building more roads takes up too much land, and limiting the number of private cars is inconvenient for some people. So, I think the best way is to walk if you can. And as for pedestrians, we should also have a sense of safety. Don’t cross the road under red lights. ⅲ、写作技巧： In recent days, we have to face a problem/ phenomenon that -----A----, which is becoming more and more serious. ----(说明A的现状)．Confronted with A, we should take a series of effective measures to cope with the situation. For one thing, ---------------(解决方法一). For another -------------(解决方法二). Finally, --------------(解决方法三). Personally, I believe that -------------(我的解决方法). Consequently, I’m confident that a bright future is awaiting us because --------------(带来的好处).最近……现象的日益增多已经引起了全世界的注意。最近……的问题已经成为人们关注的焦点。…… 如今，越来越多的人开始关注…… 4. Nowadays, an increasing number of people come to realize／be aware of the importance of… 现在越来越多的人开始意识到……的重要性。 5. Nowadays, more and more people are concerned about the problem of… 现在越来越多的人开始关注……的问题。 6. It is undeniable／There is no denying the fact that…has be come the utmost concern among people nowadays. 不可否认，……已经成为人们最关注的问题。 Confronted with---- A----, we should take a series of effective measures to cope with the situation. For one thing, ---------------(解决方法一). For another -------------(解决方法二). Finally, --------------(解决方法三). 2. It is essential／indispensable that proper actions／effective measures should be taken to reverse this situ