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1、第五課時(Section B 3a3b)單元同步作文指導本單元以“談論重要發(fā)明”為話題，要求同學們能夠從發(fā)明時間、大小、用途等方面描述一項發(fā)明。本單元常見的作文話題：介紹歷史上的一項重要發(fā)明；介紹你身邊的人或你自己的一項新發(fā)明等。假設這周你們學校的英語角談論的話題是“手機的發(fā)展史”。請你從手機的發(fā)明時間(1973年)、外觀(large，heavy)和用途等方面，在英語角和同學們談論一下它的發(fā)展變化，并描述你對未來手機的暢想。要求：1.語意連貫，語句通順；2不少于80詞。本文是一篇介紹手機的說明文。寫作時可按照如下思路進行：本篇作文主要介紹手機的相關信息，因此我們可以按照時間順序進行描述：過去(

2、歷史)、現(xiàn)在(使用狀況)以及將來(前景及發(fā)展趨勢)。寫作時要特別注意正確使用一般過去時及其被動語態(tài)。Cellphones are becoming more and more important in our daily lives.Do you know the history of cellphones？The first cellphone was invented in 1973.At that time，it was like a building brick and much heavier than the cellphone today.Cellphones have many

3、 uses.For example，we can use cellphones to talk to others at any time.We can also use cellphones to take photos，listen to music or surf the Internet.I believe that cellphones will become thinner and thinner and that smartphones will take the place of computers in the future. Small inventions that ch

4、anged the world.was invented by.It is used for.It is said that.It is very important/comfortable/convenient/useful.Basketball has not only become a popular sport to play，but it also become a popular sport to watch.is/are becoming more and more important in our daily lives.造紙術(shù)不僅是中國古代的偉大發(fā)明，同時也促進了世界文明的發(fā)

5、展。請根據(jù)下面表格里所提示的內(nèi)容，以One of the Most Helpful Inventions為題寫一篇短文。詞數(shù)6080之間。InventionPaperTimeWestern Han DynastyInventorCai LunMaterialsbark，ropes，rags and so onUseswriting，painting，printing books and so onOne of the Most Helpful InventionsAs we all know，paper is one of the four most important inventions

6、in ancient China.It was invented in the Western Han Dynasty by Cai Lun.After he had done many experiments，Cai Lun made paper with bark，ropes，rags and so on.It is a great contribution to the world.Nowadays，paper is very useful in our work，study and daily life.We can use it to write，paint，print books and so on.Thanks for the invention of paper，it has made our life more colorful.