2、adj + as + subject(主词)+ be，3、by +v-ing，考研复试英语句式例: so precious is time that we
1、so + 形容词 + be + 主词 + that + 句子 (如此...以致于...)
例: so precious is time that we can’t afford to waste it.
时间是如此珍贵，我们经不起浪费它。
2、adj + as + subject(主词)+ be， s + v(虽然...)
例句：rich as our country is， the qualities of our living are by no means satisfactory.
by no means = in no way = on no account 一点也不
虽然我们的国家富有，我们的生活品质绝对令人不满意。
3、by +v-ing， ~~ can ~~ (借着...，..能够..)
例句：by taking exercise， we can always stay healthy.
借着做运动，我们能够始终保持健康。
