-人教版（2019）选择性必修第一册Unit 2 Looking into the Future重点单词课件（共19张PPT）

(共19张PPT)
选择性必修一unit 2单词讲解
persuade
劝说；说服（v）
persuade sb (not) to do sth.
说服某人(不）去做某事
persuade/talk sb. into(out of) doing sth
He persuaded his friend ______ (go) back to school.
to go/ into going
I am not easily _______ (persuade).
persuaded
switch
替换；交换（v）
switch
转换；交换
改变；转变（turn）
开关；转换器 (n.)
turn/switch on/off 开/关（电灯、机器等）
She flicked a switch and turned the lamp on.
We switched over to a different telephone service.
I switched to a new doctor.
开关
替换
切换；转换
distant
遥远的；（adj）
distant
遥远的；远处的（距离）
疏远的（关系）
心不在焉的(心里)
a distant village
a distant cousin
a distant look
secure
安全的；可靠的；安心的（adj）
获得（v）
拓展词汇：security 安全；警卫 （n.)
efficient
高效的；效率高的 （adj）
拓展词汇：inefficient 效率低的
efficiency 效率（n）
efficiently高效地；效率高地 （adv）
He is an _________ (高效的）worker.
The machine is working ________ (efficient).
Because of her ______, we finished the work ahead of time.
efficient
efficiently
efficiency
preference
爱好；偏爱（n）
preference
爱好；偏爱（n）
拓展词汇：prefer较喜欢；更喜欢（v.)
prefer---preferred---preferred
prefer A to B 和B比起来更喜欢A
show preference for 偏爱…
Parents should not show preference for any one of their children.
instant noodle 速食面；方便面
你知道方便面用英语怎么说么？
instant coffee 速溶咖啡
warning
警告；警示；先兆（n）
warn 警告（v）
constant
不断的；重复的；不变的（adj）
constantly 不断地；一直（v）
He suffers from constant headaches.
She has struggled to maintain a ________(不变的) weight.
Fashion is ______ (constant) changing.
constant
constantly
abnormal
不正常的；反常的（adj）
反义词：normal正常的
The results of the blood test were abnormal.
critical
严重的；
关键的
批判性的
serious
crucial/vital
The premier faced a critical situation in September of that year.
Develop a habit of critical thinking.
This is a critical issue for our economy and our country
严重的
批判性的
关键的