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1.glass n. 作玻璃讲时，为不可数名词，表达数量则用...piece(s) of glass

glass 作玻璃杯讲是可数名词

We can see everything through glass.

Three pieces of window glass were broken because of strong wind.

2. Is it made of silver?

Eg: The kite is made of paper.

The wine is made from wheat.

Some of the trees will be made into paper.

The chair was made by an old carpenter.

This car is made in Shanghai.

3. 辨析produce 与make

Produce：通过制造获得产品，也表示生产粮食、蔬菜等。

Make; 作“制造” 讲时，可以和produce互用。但不能表示通过种植而获得产品

eg: They produce wheat and rice.

The factory makes/ produces cars.

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15-16九年级英语上册第四单元知识点：unit4 

最新初三上册英语第四单元知识点