I.词语辨析
1、pure / net
pure：（在品质上）纯的、无杂质的(not mixed with anything else)；洁净的(clean)
e.g. This is pure gold, 99.99%.
These shirts are 100% pure cotton.
The water in this river is fresh and pure.
opp. impure
net：（在重量上）净的、（数量上）纯的
e.g. net weight：净重； a net profit / gain of $500：500美元纯利； net income：纯收入；
2、turn into / change into / put into / translate into
turn into：变成、翻译
e.g. It turned into a nice day.
The magician on the stage turned the stone into gold, which surprised us all.
