现代大学英语第四册第八课教案(2)

外国语学院基础英语教研室

bi-: from Latin, meaning “twice, two”

e.g. biennial, bisect, bicentennial, biped, bigamy, binoculars, bilateral, biweekly

In some words referring to time periods, the prefix bi- has two meanings:

“twice a+-” and “every two+-s”. Thus, biannual means both “twice a year” and “every two years”.

tri-: from Latin, meaning “three” e.g. triatomic, trilateral

quadri-: meaning “four” e.g. quadrilateral, quad

penta-: from Greek, meaning “five” e.g. pentagon

sex-: from Latin, meaning “six” e.g. sexpartite

octa-: from Greek, meaning “eight” e.g. octagon

deci-: from Latin, meaning “ten”. e.g. decibel, deciliter

poly-: from Greek, meaning “much, many”

polyglot, polyandry (the custom of having many husbands)

Asia’s 1997-1998 financial crises 亚洲金融危机

flow: n. the steady and continuous movement of sth. in one direction e.g. the flow of river/blood/information/refugees/goods

dwarf: v. to make sth. seem small by comparison

bond: n.

a certificate of debt issued by a government or corporation guaranteeing payment of the original investment plus interest by a specified future date 债券 e.g. government bonds 国库券

equity investment 产权投资, 直接投资

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外国语学院基础英语教研室

binge: n. (infml) a short period when you do too much of sth, esp. drinking alcohol 狂欢作乐，大吃大喝

e.g. Each holiday is a binge of eating and sleeping.

vi. (on) To eat a lot of food in a short time

e.g. Whenever she is depressed, she binges on chocolates.

to go on a binge: (infml.) to do too much of sth., such as eating, drinking, shopping

e.g. He must have gone on a binge with his friends, because he is addicted to alcohol.