初三英語上知識點梳理
(2) for用于完成時,用作介詞,后常接一段時間,意思是“經(jīng)過…”。
i have learned english for five years.我已經(jīng)學(xué)了五年英語了。
they have waited for you for 30 minutes.他們已經(jīng)等了你三十分鐘了。
for也可以用作連詞,但意思是“因為”。
they missed the flight for they were late.他們由于完到了而誤了航班。
he fell ill for many reasons.他由于多種原因病倒了。
9. except/ besides
(1) except是指不包括后面所提人或物在內(nèi)的“除了”,可以理解為“撇開…不談”,表示兩部分的不同。
everyone is excited except me.
除我以外的每個人都很激動。(他們激動,而我卻不激動)
all the visitors are japanese except him.
除他以外的所有游客都是日本人。(其他人是日本人,可他不是)
(2)besides是包括后面所提人或物在內(nèi)的“除了”,可以理解為“除之外…還、除之外…又”,表示兩部分的相似性。
twenty-five students went to the cinema besides him.
除他以外,還有25個學(xué)生去看了電影。(他和另外25人都去了)
we like biology besides english.
除了英語外,我們還喜歡生物。(生物和英語都喜歡)
besides還可用作副詞,意思是“此外;而且”,常用于句首或句尾。
he is a great thinker, and besides, he is a politician.
他是一名偉大的思想家,除此以外,他還是一位政治家。
they encouraged me, and they supported me with money, besides.
他們不僅鼓勵我,而且與我以金錢上的支持。
10. keep doing/ keep on doing
(1) keep doing指的是連續(xù)地、堅持不斷地做某事,中間不間斷。
it kept blowing for a whole day.刮了一整天風(fēng)了。
the temperature keeps dropping.溫度持續(xù)下降。
(2) keep on doing是指反復(fù)堅持做某事,但動作之間略有間隔。
they have kept on writing to each other for many years.他們已經(jīng)互相通信多年了。
after drinking some water, he kept on talking.喝了一些水后,他堅持講話。
11. seem/ look
(1) seem一般著重于以客觀跡象為依據(jù),意思是“似乎、好象、看起來…”。
the baby seems to be happy.嬰兒看上去似乎很高興。
he seemed to be sorry for that.他似乎為那件事感到抱歉。
seem能與to do結(jié)構(gòu)連用,而look不能。
it seems to rain. 似乎要下雨了。
they seemed to have finished their work.他們似乎已經(jīng)完成了工作。
在it作形式主語的句型中只能用seem。
it seems that he is quite busy now.他現(xiàn)在看起來很忙。
it seems to us that there is nothing serious.在我看來沒什么大不了的。
(2) look用作“看起來;好像”時,常從物體的外觀或樣貌上來判斷,是以視覺所接受的印象為依據(jù)的。
the room looks clean.這間房看起來很干凈。
the girl looks like her mother.那女孩看起來向她的媽媽。
12. such/ so
(1)such常用作形容詞,用來修飾名詞。
don’t be such a fool.別這么傻。
he is such a clever boy.他是如此聰明的一個男孩。
(2) so是副詞,用來修飾形容詞或副詞。
he is so kind! 他真好心!
why did you come so late? 你為何回來得如此晚?