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1.多讀書對孩子們很有好處。

Reading more books is __________ __________ __________ __________ children.

2.他匆忙地趕往學(xué)校，就在這時，他看到了以前的老同學(xué)。

He was hurrying to school ____________ he ____________ ___________ __________ his former classmate.

3.空氣中過多的二氧化碳使得地球上的熱無法釋放到太空中去。(prevent)

Too much carbon dioxide ___________ ___________ ______________ ______________ from the earth to space.

4.一種普遍被人們所接受的理論是：宇宙起源于一次大爆炸，它將物質(zhì)投射到四面八方。

    According to _______ _____________ ______________ ____________, the universe began with a “Big Bang” __________ threw matter __________ ____________ _______________.