1．be made into意思是“被制成”。如：

①In many parts of the world corn is made into powder.

在世界许多地方玉米被制成粉。

②We can make glass into different kinds of things.

我们可以把玻璃制成各种东西。

2. be made of原为be made out of常被省略。这一短语表示成品制成后，仍保留了原材料的形状，制作过程仅发生了物理变化。如：

③The desks and chairs are made of wood.

这些课桌都是木头制成的。

④The cloth is made of cotton.

这种布是用棉花制成的。

3. be made from表示制成的东西完全失去了原材料的外性和特性，原料在制作过程中发生了化学变化，从成品已无法辨认。如：

⑤Gas is made from coal.煤气由煤制成。

⑥This kind of wine is made from rice.

这种酒是米制成的。

4. be made up of是“由…组成”的意思。如：

⑦The article is made up of four parts.

这篇文章有四部分组成。

⑧The sports team is made up of twenty members.

这支运动队有20人组成。

【注】be made of，be made into和make…into…许多时候可互换使用。如：

⑨Bread is made of flour.

= F1our can be made into bread.

= We can make flour into bread.

= We can make bread (out) of flour.

学以致用 ：

1、The desk is made        wood.

    A. of    B. from   C. in

2、The paper is made       wood.

    A. of    B. from   C. in

Keys：

1.A  2. B