Unit 6 When was it invented?Wednesday 星期三 (Grammar Focus—4c)一、核心词汇fridge ， low ， somebody ， translate ，lock ， ring ， earthquake ， sudden ，bell ， biscuit ， cookie ，musical ， instrument ( Grammar Focus-4c)二、重点短语be used for doing sth. 被用来做某事；at a low price 以低价格；advise sb. (not)to do sth. 建议某人 ( 不要 ) 做某事；translate…into… 把……翻译成……； ( Grammar Focus-4c)all of a sudden 突然 , 猛地；break the rule 违反规则；less than 不到，少于；work on sth. 致力于某事；be similar to 与……相似 ( Grammar Focus-4c)三、主要语法：一般过去时的被动语态一般过去时的被动语态结构： was/were +doneThe building was built ten years ago. ( 肯定句 )→The building wasn’t built ten years ago. ( 否定句，在 was ， were 后加 not)→Was the building built ten years ago?( 一般疑问句，把 was ， were 提句首 ) ( Grammar Focus-4c)四、基础复现天天练：蒸汽轮船的发明 ( Grammar Focus-4c)题型体裁词数难度 建议完成时间正确率阅读 B篇记叙文 337 words★★★☆☆7 min _____/5 Travelling by ship is very convenient. On the one hand, you can enjoy the beautiful sea sight and the music played by musical instrument. On the other hand, you can also eat different kinds of food as on the ground. You can have biscuit, cookies or some fresh fruits because they have fridge to store them. ( Grammar Focus-4c)But do you know the invention of the steamship? Millions of years ago large wood were used for making a ship. This kind of ship was called canoe. Later ， more and more ships were made in different sizes and of all kinds of materials. ( Grammar Focus-4c) But all of these ships can only be moved by people or by wind. So they have low speed. Yet, Fulton ， an American scientist ， is really a pioneer. In 1807 ， he inve...
