3unit4重点词汇讲解解析

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puzzling adj.令人费解的
【即学即练】
③She felt C ______ about her future.
A.puzzle
B.puzzling
C.puzzled
D.puzzles
5.in time 及时;终于;迟早
Will we be in time for the six o'clock train? 我们来得及赶上六点钟的那趟火车吗?
Smoking
is harmful to
______ ______ ______
your
health.
3.exist vi. 存在;生存 (无被动,无进行)
Man cannot exist without air. (1) exist on …… 靠……生活、生存 eg.他们靠微薄的收入生存是不可能的。
【即学即练】 1.让我们轮流来做这项实验。
Let's do this experiment ___i_n__ _t_u_r_n__ .
2.你的态度影响别人,它又将会反过来影响你。
Your attitude affects others which ___in___t_u__r_n__ affects you.
(3)There is no harm in doing sth. 做某事没有害处
eg. 在学习上取得进步没有任何害处。
There is no harm in making progress on study.
(4) 无害的;不致伤的; harmless
【即学即练】
does harm to
①吸烟有害健康。
Many people are aware of the harmful effects of smoking.
很多人都意识到了吸烟的危害。
【联想拓展】
(1)be harmful to 对……有害
(2) harm n.&v. 损害,伤害
do harm to sb.= do sb.harm = harm sb. 对某人有害;
6.in one's turn 轮到某人;
eg. In my turn, I told them a joke.
常用结构:
(1)in turn 依次;轮流;转而;反过来; (2)take turns (to do sth./doing sth.) 轮流(做某事) (3)It's one's turn to do sth. 轮到某人做某事
4.puzzle vt. &vi.(使)迷惑;(使)为难
n.谜;难题
(1)puzzle sb. 使某人困惑
Hale Waihona Puke Baidu
Her reply puzzled me. 她的回答把我弄糊涂了。
(2) puzzle about/over …. 对…感到迷惑;苦苦思索;
她几个星期也琢磨不透他那封奇怪的来信。
She's been _p_u_z_z_l_in_g_o_v_e_r_ his strange letter for weeks.
eg.Their reason for doing it is still a puzzle to me.
他们为什么要做此事我仍莫名其妙。
(3) be a puzzle to sb对某人来说是个谜
【联想拓展】
(4)puzzled adj.迷惑不解的;困惑的
be puzzled about 对……迷惑不解
at no time
绝不;在任何时候都不(放句首,句子用半倒装)
from time to time不时地,间或;
ahead of time take one' s time
in no time
all the time
提前;提早 别着急;慢慢来 立刻,马上(=at 一直;始终
once/immediately)
1. unlike prep. 与……不同;不像 ;
eg.Unlike her younger brother, she is very diligent. 和她弟弟不同的是,她很刻苦。
拓展: (1)unlikely adj. 不大可能的;未必会发生的;
It's unlikely that…… ……的可能性不大 (2)likely adj. 可能的 adv.很可能
It's likely that…… 可能… (3) sb./sth. be likely to do sth. ……有可能做某事 eg.这位影星可能来 The movie star __is_ _li_k_e_ly__t_o__ c_o_m__e_.
2 . harmful adj. 有害的;造成伤害的;
If you keep on working hard, you'll succeed in time.
归纳拓展:如果你坚持努力工作,你迟早会成功的。
on time
准时
at the same time同时
at times
有时;偶尔;
at one time 一度;曾经有一个时期;
at a time
一次;每次
The boss ordered us to finish our task ahead of time . 老板命令我们 提前完成任务。 Take your time packing, for we still have one and a half
hour. 慢慢整理 行李,因为我们还有一个半小时。 我们决不能向敌人屈服。 At no time can we give in to the enermy.
3.今天该我洗盘子洗碗了。
It's my turn _t_o____w__a_s__h_ __u__p__ today.
It's impossible for them to exist on a small income. (2) there exists/esisted…… 某地有…… eg. 在我们公司门口有两个巨大的石狮子。
There exists 2 huge stone lions at our company gate. 拓展: (3) existence n. 存在;生活; come into existence 产生;成立;开始存在; eg.Do you know when the English wordtuhao__c_o_m__e_in_t_o_e_x_is_t_en_c_e
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