拓展中心句的方法思维导图

解释原因是人类的本能，但前提要保证中心句是一个明确的结果

原因解释完之后，你有两种选择，既可以举例子，也可以进行对比

解释原因：因为我们的浏览（使用）痕迹可以被像一些Google,facebook记录下来，并且我们无能为力 This is because everything that internet users do is recorded by companies such as Google s and Facebook,and there is not much that typical user can do to prevent it.

举例：互联网用户需要牢记的是他们的网页浏览和邮件记录都被保存下来，并且谷歌可能非常了解他们的浏览痕迹 For example,internet users should bear in mind that all of their emails and searshes are saved ,and Google might konw more about their daily activities.

结尾：如果这些被落入不法分子手中，将会给我们的隐私带来极大的威胁 If it fell into the wrong hands,it could represent a real threat to people's privacy.

原因：因为学生们的建议会帮助老师了解到自己教学的问题this is partly because complaints from the former help the latter to become aware of the defects in their teaching methods.

原因二：一些重要的决定诸如评优，涨工资，以及晋升都是基于这些评价的，所以老师应该认真的对待学生的评价，并且尽力解决这些问题 Apart from that,as important decisions including merit reviews,pay rises,and promoltions are based in part on these evaluations,teachers must treat these feedback in their teaching,such as spending more time helping students with their homework.

他们可以交更多朋友，同时学习如何与年龄相仿的其他孩子相处 They are able to built a wide circle of friends and learn how to get on well with other children of similiar age.

在家里这些能力便不会形成，因为通常都是独生子，或者因为他们的兄弟姐妹们比他们大的多或者小得多 This is often not possible at home because they are the only child ,or because their brothers or sisters are older or younger.