21.⑴ too…形容詞(副詞)+to…"太…而不能" "太…以致于不"

　　　　eg.①The basket is too heavy for me to carry. 這籃子太重我拿不動。

　　　　②This colour TV is too expensive for us to buy. 這臺彩電對我們來說太貴了，買不起。

　　　�、苨o...that 如此...以致于...588.es

　　　　上面的too...to結(jié)構(gòu)的句子，可以換成so...that 引導(dǎo)的句子轉(zhuǎn)換。

　　　　①The basket is so heavy that I can’t carry it.

　　　�、赥his colour TV is so expensive that we can’t afford it.

　　　　22.What’s the population of ...? ...人口有多少?

　　　　不說How much population in...?形容人口數(shù)量的大用large

　　　　eg.The population of China is ten times as large as that of the USA

　　　　23.I’ve come to return your pan. (我跑來是還你鍋的) →Why have you come? 而不用What

　　24.not...until (連詞)知道...才

　　　　eg.He says that he won’t be free until tomorrow.他說他需到明天方才有空。

　　　　肯定句+until 到...為止

　　　　eg.You’d better wait until tomorrow. (你最好等到明天)

　　　　25.neither...nor... 既不...也不...

　　　　either...or... 或者...或者...

　　　　eg.Neither Tom nor his brothers know how to spell the word "hundred".

　　　　Either you or she is right. (謂語動詞就近原則)

　　　　both...and... 兩者都...

　　　　eg.Both Jim and I are in Grade One (主語看作復(fù)數(shù))

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