内容正文:
Unit 3 Computers
主题语境类型:人与社会 话题:科学与技术 话题涉及教材其他内容:选修7 Unit 2 Robots;选修8 Unit 2 Cloning;选修8 Unit 3 Inventors and inventions
1.arise (arose,arisen)vi.出现,发生
在真实语境中先行体验高频考点
完成句子
①New problems will (出现) one after another in the future.
②Emotional and mental problems can (由……引起) a physical cause.
答案:①arise ②arise from/out of
(1)arise vi.出现;发生
多以抽象名词作主语,如:argument,problem,quarrel,question,movement等。
(2)arise from/out of由……而引起,由……而产生;从……中产生
The sun rises in the east and sets in the west.
太阳从东方升起,西方落下。
As we all know,the problems between parents and children have arisen from lack of communication.
众所周知,父母与子女间的问题是由缺乏交流引起的。
The old man raised the stone lying in the middle of the road with all his strength.
老人用尽全力举起了躺在路中央的那块石头。
2.signal n.信号 vi.& vt.发信号
...China first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth.(2020全国Ⅰ,语法填空)
……中国首先必须把一颗人造卫星送入月球轨道上的一个点,人造卫星可以在这个点向航天器和地球发射信号。
在真实语境中先行体验高频考点
单句语法填空
①Cyclists who give (signal) before turning or stopping help prevent accidents.
②The police signalled the driver (stop) his car by raising his hand.
完成句子
③Before (交通信号灯)turns green,please don’t cross the street.
答案:①signals ②to stop ③the traffic signal
(1)signal (to) sb.to do sth.示意某人做某事
(2)signal (sb.)that 示意(某人)……
(3)a danger/warning/traffic signal 危险/警告/交通信号
symbol
指符号、象征、标志等,常表达某种深邃寓意的事物。
signal
指为某一目的而有意识地发出的信号、暗号或警告等。
sign
表示“记号,符号”时,同symbol。表示“招牌,标志”时,侧重指用图形、文字等所表达的内容,另外还可指“征兆,迹象”。
mark
普通用词,含义广泛。既可指为便于辨认而有意识地做的标记,又可指自然而然形成的标志或有别于其他事物的特征。也可用于指“分数,成绩”。
as a result 结果
Most obviously,the men displayed lower blood sugar levels at the start of their workouts when they had skipped breakfast than when they had eaten.As a result,they burned more fat during walks on an empty stomach than when they had eaten first.(2020江苏,阅读理解C)
最明显的是,当他们不吃早餐的时候,处于锻炼开始阶段,人的血糖水平比他们吃过的时候要低。结果,他们在空腹散步时燃烧的脂肪比刚吃东西时多。
在真实语境中先行体验高频考点
单句语法填空
①As result,she says,some of the injuries associa