Unit21 body language
(1)incredible adj.不可相信的，（口語）驚人的，極好的。
it is incredible that he should have gone to live in such a dangerous country.
他竟然搬到那樣危險的國家去住，實在令人無法相信。
(2)believe & believe in 請比較：
i don’t believe in him, so i don’t believe him, no matter what he says.
我不信任他，因此，無論他說什么，我都不信。
11. to move the head up and down= to nod 點頭
up and down 上上下下，前前后后，來來往往，到處 eg:
the lift is moving up and down.
the children are running up and down in the street.
mathilde looked for her lost necklace up and down in the palace.
ups and downs 盛衰，浮沉
up-and-down adj.起伏的，變化的，來來往往的，n.光明壘落的行為，越來越好
12.. lean v. (leant, leaned)
1) 傾斜，彎曲，屈身
lean forward, lean back
lean out of the window, back in one’s chair, over to one side.
2) lean against/upon/on sth. 依靠在某物上
the ladder is leaning against the wall.
the old man leant upon/on his stick.
3) lean sth. against/on sth.使某物靠在另一物上
the workmen leant their shovels against the fence and went to lunch.
4) lean on/upon sb./sth. for sth.依靠某人（某事物）=depend on
young people lean on old people for guidance/advice/support.
13.. crazy adj.瘋狂的，狂熱的
he is crazy.
the noise is driving me crazy./ the noise is making me go crazy.
you must be crazy to go walking in such terrible weather.
the kids went crazy when the film star appeared.
be crazy about sb./sth.狂熱，熱衷
i am crazy about maths. she’s crazy about him.
like crazy 極度，非常=very much
work/talk/run like crazy 拼命工作/講話/跑
14. part vt./vi 分開，分離 part (from sb); part sb from sb
the police parted the crowd.
the children were parted from their parents.
she has parted from her husband.
the crowd parted to let them through.
it is 3 years since they parted.
the clouds parted and the sun shone through.云開日出
part with sth. 放棄或出讓某物 =give away
although he is poor, he refused to part with his collected stamps.
take/play an active part in sth. 積極參加某事
play a major /important/significant part in sth 在某方面起重大作用
15. firm adj.
1) 堅實的，堅硬的
this wet ground id not firm enough to walk on.
firm soil堅硬的土壤 firm flesh/muscles 結實的肌肉
2) 牢固的，穩固的，堅固的
this building has a firm ground. a firm foundation堅固的基礎
3) 穩定而有力的 a firm handshake