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1、Section A (4a4c)单元同步语法精讲精练单元同步语法精讲精练“by动词的ing形式”表示“以，靠，借助，通过，用(某种方法或手段)”达到某种目的或某种结果。对此方式状语提问，应用how。该结构常用于回答How do you.？或How can I.？之类的问句。eg：How do you learn English？你怎样学习英语？By reading English newspapers and magazines.通过读英语报纸和杂志。How can I turn on the computer？我怎样才能打开电脑？By pressing this button.通过按这个按钮
2、。【拓展】by的其他意思“by交通工具/方式名词”意为“通过，乘坐”，表示交通方式。如by train/taxi/bus/bike/boat/plane，by land/road/sea/air等。“by时间名词”意为“在以前，不迟于”，表示时间。如by now/then/next Friday/two oclock等。eg：You must finish your homework by 5 pm.你必须在下午5点前完成你的家庭作业。“by地点名词”意为“在旁边，靠近”，表示位置，此时可与beside换用。如by the lake/river/window/door等。by还有“经过”的意思
3、。eg：walk/pass/go by一、单项选择。1_ did you come up with such a good idea?By reading some books.AWhatBWhenCHowDWhy2My uncle makes money by _ as a teacher.Aworking BworksCto work Dto working3Do you often learn English _ listening to VOA?Yes. And I also have conversations with friends _ English.Afor，in Bfor，
4、by Cby，by Dby，in4Her mother goes to work _ bus every morning.Aby Bat Con DinCADA二、按要求完成下列句子。1He improves his spoken English by_joining_an_English_club(对画线部分提问)_he_ his spoken English?2You can make word cards to learn new words.(改为同义句)You can learn new words _word cards.3They traveled around the city
5、 on their bike last year.(改为同义句)They traveled around the city _last year.4我通过大声朗读来学英语。(翻译句子)I learn English _5我通常通过记句型来练习我的英语。(翻译句子)I usually practice my English _patterns.How does improveby makingby bikeby reading aloudby memorizing sentence本课时其他知识点精练一、根据句意及汉语提示完成单词。1Can you _(重复) what you said?2On
6、e of my favorite subjects at school is _(化学)3Its a good idea to take some _while listening to teachers in class.4Liu Xin is good at _And he is a big fan of Qian Xuesen. repeatchemistrynotesphysics二、按要求完成下列句子。1I keep diaries in English often(对画线部分提问)_ you keep diaries in English?2Studying with a group is a good way to learn English.(改为同义句)_ a good way to learn English _ studying with a group.3做语法练习对你很有帮助。(翻译句子)_is very helpful to you.How often doIt isbyDoing grammar exercises
