1、第五课时 (Section B 3a3b),单元同步作文指导,内容要点： 1首先，骑自行车出行方便，可以随时租还。(rent and return) 2其次，众所周知(as we all know)，在上学、上班时段交通特别拥挤，如果有更多的人选择自行车，街道上就会有更少的汽车，也不会那么拥挤。 3最重要的是，骑自行车几乎不会带来污染，有助于保护环境。,提示：1.短文中应包含至少4个要点； 2书写工整、语句通顺、连贯，词数不少于80。 注意：文章开头已给出，不计入总词数。 参考词汇：optimistic adj.乐观的 government n政府 take measures 采取措施 pri
2、vate adj.私有的,Our Environment in Ten Years：for Better or Worse? Many students are optimistic about our environment in ten years. They think in the future more and more people will be greeners.They will try their best to protect the environment，for example，caring for wild animals and planting more tre
3、es.Whats more，the government will take more measures to improve the environment.It will also do something useful to stop polluting the environment.,However，some students are worried about our environment in ten years.In order to make more money，lots of trees will be cut down by the greedy people.Als
4、o，there will be more private cars than before.As a result，our environment will be destroyed. In my opinion，our environment in ten years will become better.Because many of us have the knowledge of protecting and improving our environment.I will reduce the waste I produce.As for going to school，I will walk more instead of taking a taxi or a bus.I hope our environment will become better and better in ten years.,
