高三英語Astronomy教案
4). _______ _______ _______ will i give up.
5). the boy laughed and cried _______ _______ ______ ______.
6). _______ _______ _______ he was addicted to playing web games, but now he devotes himself to writing, which delights his parents.
7). don’t try to do everything at once; take it a bit _______ _______ _______.
8). you’ll have your own office soon, but _______ _______ _______ _______ you’ ll have to share one with me.
keys: 1). in time 2). in time 3). in no time 4). at no time
5). at the same time 6). at one time 7). at a time 8). for the time being
3. in one’ s turn 輪到某人；接著
[典例]
i will see you, each in your turn. 我將要一個接著一個地看你。
[短語歸納] turn短語：
in turn輪流；一個接著一個 by turns輪流；一陣……一陣……
take turns (to do sth.)輪流（做某物） it’s one’s turn to do sth. 輪到某人做某事了
[練習] 用turn短語填空或翻譯句子。
1). she went hot and cold _______ _______.
2). 我們輪流著開車。
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3). 今天輪到誰發言了？
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keys: 1). by turns 2). we drove the car by turns / in turn. = we took turns to drive the car.
3). whose turn is it to give a speech today?
4. prevent...from = stop...from = keep....from 使……不做事；阻止……做某事
[典例]
his back injury may prevent him from playing in tomorrow’ s game. 他背部的傷可能使他參加
不了明天的比賽。
【用法辨析】注意: prevent / stop sb. from doing sth.中的from可省, keep sb. from doing sth.中
from不可省略，因為keep sb. doing sth.是“使某人一直做某事”之意；但如在被動語態中，
三者的from都不可省；當后接sb’ s doing sth. 作賓語時，只能用prevent或stop，不能用keep，
因為沒有keep sb’ s doing sth. 的句型。
[練習] 根據句子的意思完成句子或翻譯。
1). doctors took action to _______ _______ _______ _______ _______ (防止這種疾病的蔓延).
2). of course i can’ t _______ your going abroad.
3). 警察阻止他們攜帶武器。
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keys: 1). prevent/stop/keep the disease from spreading 2). prevent / stop
3). the police prevented/stopped/kept them from carrying weapons.