新一輪中考復(fù)習(xí)備考周期正式開(kāi)始，中考網(wǎng)為各位初三考生整理了中考五大必考學(xué)科的知識(shí)點(diǎn)，主要是對(duì)初中三年各學(xué)科知識(shí)點(diǎn)的梳理和細(xì)化，幫助各位考生理清知識(shí)脈絡(luò)，熟悉答題思路，希望各位考生可以在考試中取得優(yōu)異成績(jī)！下面是《2018初中英語(yǔ)語(yǔ)法之介詞from用法詳解》，僅供參考！
3.(表原因)由于，因?yàn)?/div>
They are tired out from planting the corn yesterday.由于昨天種了一天玉米，今天他們都十分疲勞。
4.(表距離、脫離，分離)離
The house is five miles from the town.這房子離市鎮(zhèn)有5英里路。
5.(表原料、材料)用，由
Paper is made from wood.紙用木材做原料。
6.(表避免、阻止、遮蔽)避免，防止，以免
He covered his wife from the man's blows with his body.他用身體擋住那人，從而使他妻子免遭打擊。
7.(表區(qū)別、差異)由，與(…不同)
I can't tell one twin from the other.我分不出雙胞胎中誰(shuí)是誰(shuí)。
8.(表判斷、觀點(diǎn))由(…來(lái)看)，根據(jù)(…來(lái)判斷)
From her looks you would say she was about twenty.從她的模樣看，你會(huì)說(shuō)她約摸20歲。
9.(表根據(jù)、依據(jù))憑，據(jù)：He played the music from memory.他憑記憶演奏了那首曲子。
二、用法搭配歸納
1.from…on從…起
He never spoke to her again from that day on.從那天以后他再?zèng)]有同她說(shuō)過(guò)話。
2.from…to…從…到…
He flew from Beijing to Shanghai.他坐飛機(jī)從北京到上海。
三、語(yǔ)法說(shuō)明與慣用法說(shuō)明
1.有時(shí)其后可接介詞短語(yǔ)
Choose a book from among these.從這些書(shū)中選一本吧。
比較：
I took it from the bed.我從床那兒(或床上)拿的。
I took it from under the bed.我從床下拿的。
注意，下面一句用了from where(引導(dǎo)非限制性定語(yǔ)從句)，而未用from which，其中的where=in the tree，即from where=from in the tree：
He hid himself in a tree,from where he could see the enemy in the distance.他躲在一棵樹(shù)上，從那兒他可以看到遠(yuǎn)處的敵人。
2.有時(shí)其后可接when,where引導(dǎo)的賓語(yǔ)從句(可視為其前省略了the time,the place)：
He didn't speak to me from when we moved in.從我們遷入之時(shí)起，他沒(méi)和我說(shuō)過(guò)話。
From where I stood I could see everything clearly.從我站的地方我一切都看得清清楚楚。
3.某些由from…to…構(gòu)成的習(xí)語(yǔ)通常不帶冠詞：
from house to house挨家挨戶
from time to time不時(shí)地
from day to day一天天地
from head to foot從頭至腳,全身
from beginning to end從頭至尾
from hand to mouth賺一點(diǎn)吃一點(diǎn),僅能糊口
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