Question

7．我们要保护环境，让它不受到污染．
We shouldprotect our environmentfrom pollution．

Answer 1

分析 protect from．

解答 答案：protect from．这里是说保护…不受伤害，用protect  sb/sth from…，后加名词代词或者动名词，这里前面有情态动词should，后加动词原形，故答案是protect from．

点评 protect …from sth．（保护）使…免于=protect…against doing 防御
prevent …from doing sth．阻止（防御）…做…=stop sb from doing 阻止…做…
We wear sunglasses to protect our eyes from the sun．
=We wear sunglasses to prevent the sun from harming our eyes．
The sheep protected its young against being attacked by the dog．
=The sheep prevented the dog from attacking its young．
The children were stopped from going home．