(2016全国三)
In much of Asia，especially the so-called "rice bowl" cultures of China，Japan，Korea，（41）and Vietnam，food is usually eaten with chopsticks．
Chopsticks are usually two long，thin pieces of wood or bamboo．They can also be made of plastic，animal bone or metal．Sometimes chopsticks are quite artistic．Truly elegant chopsticks might（42）be made（make）of gold and silver with Chinese characters．Skilled workers also combine various hardwoods and metal （43）to create（create）special designs．
The Chinese have used chopsticks for five thousand years．People probably cooked their food in large pots，（44）using（use）twigs（树枝）to remove it．Over time，（45）as/when the population grew，people began cutting food into small pieces so it would cook more quickly．
Food in small pieces could be eaten easily with twigs which（46）gradually（gradual）turned into chopsticks．
Some people think that the great Chinese scholar Confucius，（47）who lived from roughly 551 to 479 B.C., influenced the（48）development（develop）of chopsticks．Confucius believed knives would remind people of killings and （49）were（be）too violent for use at the table．
Chopsticks are not used everywhere in Asia．In India，for example，most people traditionally eat （50）with their hands．
重难点详解及拓展：
43（复习2018全国一62、二64）不定式做目的状语
形式：to do, in order to do, so as to do(放在主句后)
44 分词做伴随状语（复习2019全国三6）
分词作状语（逻辑主语是主句主语）
形式：
doing 与主句谓语动词同时发生 主动
done 被动
having done 在主句谓语动词之前发生（for/in/over/during 时间段，since 时间点, many times, before...） 主动
having been done 被动
放在主句前（原因，时间，条件，让步）
_____(absorb) in painting, he didn’t notice evening approaching.
_____(work) for two days, he managed to finish his report on schedule.
When_____(offer) help, one often says “Thank you” or “It’s kind of you”.
Generally speaking, if ______(take) according to the directions, the drug has no side effect.
______(tell) many times, he still repeated the same mistake.
放在主句之后（伴随，结果，方式）
The sun began to rise in the sky, _____(bathe) the mountain in golden light.
The teacher enter the classroom, _____(follow) by her students.
Like ancient sailors, birds can find their way ______(use) the sun and the stars.
47复习2019全国三卷6who引导的定语从句
They were well trained by their masters who had great experience with caring for these animals.
who（连接代词）引导的限制性定语从句*，who在从句中充当主语，宾语，表语，作主语不能省略。
They were well trained by their masters and they had great experience with caring for these animals.
48名词构词法-ment
广告advertise-advertisement 吃惊astonish-astonishment 评估assess-assessment
款待/娱乐entertain-entertainment 卷入involve-involvement 投资invest-investment
