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to die than give up to the enemy. 8. concentrate on 集中注意力到 ,專心于 eg : We should concentrate our attention on our studies Our government should concentrate our effort on improving the education. 集中,集合 Birds concentrate where there is plenty of food. 9. an amount of + [u] 大量 eg : A large amount of money is spent on tobacco every year. He has any amount of money. 他的錢(qián)不可計(jì)數(shù) the / that / this amount of ?? 的量 eg : I remember being paid but fot the exact amount. He owned me $100 but could pay only half that?? in large /small amounts 大量的 /少量的 v. amount to 總計(jì),共達(dá) eg : Their family ine amounts to ¥ 300 a month. an amount of a number of a great deal of + [u] a great many + [c] much of quite a few lots of + [u] /[c] plenty of + [u] /[c] 【作業(yè)布置】 【教學(xué)后記】