This backpack _____(由.制成）a pair of jeans是BE MADE OF还是BE MADE FROM?并写出这一句的同义句（句子和原先的一样,只是括号里填的词有所不同）BE MADE OF与BE MADE FROM有什么区别?

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This backpack _____(由.制成）a pair of jeans是BE MADE OF还是BE MADE FROM?并写出这一句的同义句（句子和原先的一样,只是括号里填的词有所不同）BE MADE OF与BE MADE FROM有什么区别?
This backpack _____(由.制成）a pair of jeans
是BE MADE OF还是BE MADE FROM?
并写出这一句的同义句（句子和原先的一样,只是括号里填的词有所不同）
BE MADE OF与BE MADE FROM有什么区别?

This backpack _____(由.制成）a pair of jeans是BE MADE OF还是BE MADE FROM?并写出这一句的同义句（句子和原先的一样,只是括号里填的词有所不同）BE MADE OF与BE MADE FROM有什么区别?
在什么情况下使用"to be made / to make+from…"呢?有的讲：to be made表示‘被制作’,其后面可跟of 的介词短语,或from的介词短语,均译成‘由…… 制作的’,但是,使用时其意义略有差别.‘to be made of’可看成是一种含‘物理变化’的制作,即 保存原质只是形状变化的制作,而 "to be made from"则可看成是一种包含‘化学变化’的制作,即 有某种质变的制作.
简单地说,be made of 是可以看得出材料,质地的物品,比如说桌椅,书本之类.
而be made from 是与之相反,看不出材料的物品.
还有be made in 是产自某个地方.
The table is made of wood．
这桌子是由木头制成的.
Steel is made from iron．
钢是由铁炼成的.

made of

be made of 看得出原材料的用 OF 否则用FROM
如 paper is made from woods .

This is a backpack.（对.backpack提问） ( )1 Is that you backpack _____ ( )2 What's is this in English _____( )3 Is this her eraser ? No ,this isn't _____ ( )4 I is Alice _______ ( ) How you spell your name ? _____ 找错并改正 my book _____ in my backpack. is this your backpack?翻译成中文 This is my backpack.改成复数形式 ls this your backpack? 改为陈述句 This is his backpack.改成否定句 is this your backpack?翻译成中文 i can take this backpack _____your brother This is my backpack改为同义句 Who backpack is this?改正错句 中文意思：this backpack is his. what's this in the backpack Is this his backpack?肯定回答 是“whose backpack is this 还是“whose backpack this is 为什么? This is ablue backpack.(改错为否定句)This a blue backpack.咋填 1.I think this backpack is _____ heavy for such a little boy to carry.A.so B.very C.too D.enough最好能说明原因... This is a backpack in English（同上）划线部分：a backpack