人教版高中英语 必修三unit 4 单词讲解PPT课件
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~ on 靠..生存/生活 It is impossible for them to exist on a small income.
Keyn精o选teppSt课p件eaker
7
prevent ……(from)..阻止；制止
=stop ...(from) =keep...from (from为介词，后加ing)
by turns 轮流（多指两人/两者行为）
We did the work by turns.
it's one's turn to do sth. 轮到某人做某事
in return 作为回报
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LOREM IPSUM DOLOR
10
此课件下载可自行编辑修改，供参考！ 感谢您的支持，我们努力做得更好！
Wolves multiply rapidmlyu. ltimedia 多媒体(的）
vi/vt. 乘， 乘以； Multiply 5 and 6,and you will get 30 5 multiplied by 6 is 30.
exist vi.生存；生存 existence n.生存
无被动，无进行 People cannot exist without water.
Unit 4 Words and Expressions
system n 系统；体系；制e度conomy n.
solar system 太阳系 经济
the economic system 经济体制
• religion n.宗教；宗教信仰
religious adj. 宗教上的
violent adj.猛烈的；激烈的；
吸烟有害健康。
harm n. 伤害，损害
does harm to
do harm to=do sb harm=harm sb 对某人有害
multiply（multiplied;multiplied)
vi/vt. 增加； vi/vt. 繁殖；
Our problems have multiplied since last year. multi-表示“多个” 与其他 词构成n/adj.
eg:It is ~that she will arrive here before seven. 她有可能（不可能）七点前这。 She is likely to come tomorrow. 她有可能明天来。
harmful adj. 有害的
• be harmful to 对...有害 eg: Smoking is harmful to our health.
eg: Unlike her little brother, she is very confident.
• unlikely adj.不太可能的 likely adj. 可能的 • It's unlikely/likely that... ...不可能的/可能的... • be likely to do sth 有可能做某事
at times 有时
at no time 绝不（位于句首，句子要半倒装）
all the time 一直
eg: At no time can we give up
ahead of time 提前 at the same time 同时
our study.
in no time 立刻 马上
unlike prep. 与...不同；不像
violence n.暴力
a a
violent violent
reaction(反应） attack(袭击）
violent film/behavior(电影/行为）
in time 及时；最终（经过一段时间后，迟早...)
Байду номын сангаасon time 按时
for the time being 暂时
time
kill time 消磨时间 take one's time 不着急，慢慢来
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9
in one's turn 轮到某人
Finally， he got the ticket in his turn.
最后轮到他的时候他拿到了票
in turn 依次，轮流；转而
The girls called out their names in turn. 女孩子们依次报出自己的姓名。
eg:I prevent him (from) going out. 我阻止他出去
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8
puzzle
n.难题，谜 vt./vi 迷惑,使困惑
His behavoir puzzled me.
puzzle about/over 对...迷惑，苦苦思索
puzzling puzzled
She is puLOzzRlEinMgIPabSoUuMtDthOeLOstRrange leter.
Keyn精o选teppSt课p件eaker
7
prevent ……(from)..阻止；制止
=stop ...(from) =keep...from (from为介词，后加ing)
by turns 轮流（多指两人/两者行为）
We did the work by turns.
it's one's turn to do sth. 轮到某人做某事
in return 作为回报
精选ppt课件
LOREM IPSUM DOLOR
10
此课件下载可自行编辑修改，供参考！ 感谢您的支持，我们努力做得更好！
Wolves multiply rapidmlyu. ltimedia 多媒体(的）
vi/vt. 乘， 乘以； Multiply 5 and 6,and you will get 30 5 multiplied by 6 is 30.
exist vi.生存；生存 existence n.生存
无被动，无进行 People cannot exist without water.
Unit 4 Words and Expressions
system n 系统；体系；制e度conomy n.
solar system 太阳系 经济
the economic system 经济体制
• religion n.宗教；宗教信仰
religious adj. 宗教上的
violent adj.猛烈的；激烈的；
吸烟有害健康。
harm n. 伤害，损害
does harm to
do harm to=do sb harm=harm sb 对某人有害
multiply（multiplied;multiplied)
vi/vt. 增加； vi/vt. 繁殖；
Our problems have multiplied since last year. multi-表示“多个” 与其他 词构成n/adj.
eg:It is ~that she will arrive here before seven. 她有可能（不可能）七点前这。 She is likely to come tomorrow. 她有可能明天来。
harmful adj. 有害的
• be harmful to 对...有害 eg: Smoking is harmful to our health.
eg: Unlike her little brother, she is very confident.
• unlikely adj.不太可能的 likely adj. 可能的 • It's unlikely/likely that... ...不可能的/可能的... • be likely to do sth 有可能做某事
at times 有时
at no time 绝不（位于句首，句子要半倒装）
all the time 一直
eg: At no time can we give up
ahead of time 提前 at the same time 同时
our study.
in no time 立刻 马上
unlike prep. 与...不同；不像
violence n.暴力
a a
violent violent
reaction(反应） attack(袭击）
violent film/behavior(电影/行为）
in time 及时；最终（经过一段时间后，迟早...)
Байду номын сангаасon time 按时
for the time being 暂时
time
kill time 消磨时间 take one's time 不着急，慢慢来
精选ppt课件
9
in one's turn 轮到某人
Finally， he got the ticket in his turn.
最后轮到他的时候他拿到了票
in turn 依次，轮流；转而
The girls called out their names in turn. 女孩子们依次报出自己的姓名。
eg:I prevent him (from) going out. 我阻止他出去
精选ppt课件
8
puzzle
n.难题，谜 vt./vi 迷惑,使困惑
His behavoir puzzled me.
puzzle about/over 对...迷惑，苦苦思索
puzzling puzzled
She is puLOzzRlEinMgIPabSoUuMtDthOeLOstRrange leter.