Unit 21 Body language教案
p：certainly. there you are. here, please take my seat, you look a bit tired.
o：thank you. yes, i'm not feeling well today. i think i have a bit of cold. could you please tell me when we reach long street? i'm afraid i can't see where we are when the bus is this crowded.
p：sure. i' ll let you know when we get there.
p：shall i help you with that?
o：no thanks. i can manage it myself. but could please let me sit down for a while? i'm not feeling well.
p：oh, of course. please take my seat.
o：thank you. that's very nice of you.
p：not at all.
step 5 language points
1.keep my eyes open使眼睛睜開著
★ keep跟帶形容詞的復合結構，例如：
①good food keeps you healthy.好的食品使你健康。
②please keep the boy quiet.請讓這男孩安靜。
★ 另外keep還可以跟帶分詞、介詞短語、副詞的復合結構。
①she kept we waiting outside.她讓我在外面等著。
②he kept his eyes shut and stayed where he was.他閉著眼睛待在原地。
③if your hands are cold，keep them in your pockets.如果你手冷，把它們放在口袋里。
④the cold weather kept in doors.寒冷的天氣使我們待在家里。
2. be sure of/to do.
①he is sure of success = he is sure that he will succeed.
②he is sure to succeed= he will certainly succeed.
③i'm sure of the fact.我確實相信這件事。
④.be sure not to forget.千萬別忘記了。
3. can you tell how they are feeling today by the way they sit or stand? （warming up）
★ tell在句中作“說出，判斷，看出”解，常與情態動詞can / could連用或用于不定式結構中。如：
it was so dark that i couldn't tell that it was you. 天太黑了，我認不出那就是你。
it's difficult to tell when it will be finished. 很難說得準何時完成這項工作。
★ 另外，與之相關的短語有：tell apart意為“把……區分開”；tell from（by）意為“從（以）……可以看出”；tell ... from ... 意為“把……與……區分開來，分清……，區別……”。
i really can't tell which is which by their appearances.
我從外表實在看不出哪個是哪個。
i can't tell jane from sarah （=tell jane and sarah apart） — they look so alike.
我分辨不出簡和薩拉，她們長得太像了。
4. the customer said “i don't want to talk” by avoiding eye contact. （listening）
★ avoid 意為“避開，避免”，為及物動詞，后可接名詞、代詞及動詞-ing形式。如：
i avoided him as much as possible. 我盡量避開他。
they all avoided mentioning that name. 他們都避免提及那個名字。
she braked suddenly and avoided an accident. 她緊急剎車，避免了一場事故。
5. interested adj. 感興趣的
（1） he looked interested. 他看起來很感興趣.