Unit 13   The mystery of the moonstone
课程标准要求掌握的项目
1.话题:Talking about the mystery. 
2.词汇:reception, considerate, cigar, splendid, astonish, coincidence, tension, elegant, bachelor, prescription, drawer, theft, religious, stubborn, enquiry, assistance, vital. guilty, stain, banquet, convince, assume, cancel, meanwhile, remark, innocent, commit, straightforward, roundabout
3. 功能:提出建议(Giving advice)
   Maybe you could…               You ought to…
   If I were you I'D. ..                Why don't you…?
   It might be a good idea if you…     Have you thought about…?
   I suggest you…                   You must…
   You should