力求变换各种句式

◎一般句式 例：He came here at 5 pm.yesterday.
◎否定句 例：He did not come here until 5 pm.
yesterday.
◎倒装句 例：Not until/till 5 pm.did he come here
　 　 yesterday.
◎强调句 例：It was not until/till 5 pm.that he came
here yesterday.

·多使用过渡性词语使句子连贯
cooyu.net
表列举：for example、for instance、that is to say
表补充：besides、in　addition、moreover
表对比：on the one hand…on the other hand
in spite of
表原因：because of、thanks to、due to、owing to
表结果：therefore、thus、as a result、so
表结论：to conclude、in a word、in brief、to sum up
表转折：however、nevertheless、yet

·正确使用连接词
－We are good friends and we should help each other.(并列连词)
－As we are good friends，we should help each other.(从属连词)
－Being good friends，we should help each other.
(非谓语动词)