2．众所周知，问候因地而异。

　　People know that greeting vary from place to place．

　　3．在学校学生怎样向老师表达问候？

　　How do students in China say hello to their teachers at school?

　　4．无论是不是亲密朋友，在我们国家拥抱是很常见的。

　　Whether they are close friends or not, hugs are common in our country.

　　5．我们计划6点开始晚餐以便能延长我们的谈话。

　　We plan to have supper at six to prolong our talk.

　　(二)句式升级

　　6．用it作形式主语或as引导的定语从句改写2句

　　It's known that greeting vary from place to place.(it)

　　As is known greeting vary from place to place.(as)

　　7．用so that引导的目的状语从句改写5句

　　We are planning supper at six so that we can prolong our talk.

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　　【参考范文】

　　Dear Li Hua，

　　My friend, Susan is interested in body language in Chinese schools. At her request, I'd like to invite you to have supper with us on May 12th, and introduce some body language to us.

　　It's known that greeting vary from place to place. How do students in China say hello to their teachers at school? Whether they are close friends or not, hugs are common in our country. What about the students in your country? What's more, we often see in some Chinese films that teachers pat students on the head. Is it rude?

We plan to have supper at six so that we can prolong our talk. Looking forward to your early reply.