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 p.m. 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

　　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)