考点精讲常见用法有：makesure·+that从句（有时that可以省略）·+of(doing)sth.Makesurethateveryone’shandsarecleanbeforetheytouchthefoods.确保在接触食物之前每个人的手都是干净的。Agoodplanhelpsyoutomakesureofyoursuccessinstudy.一个好的计划有助于确保你在学业上的成功。考点精讲拓展：makesure还可意为“查明；弄清楚”It’ssaidthatthetrainarr