1.我认为语文不如数学有趣.
I think Chinese is not (as/so interesting as) math.
I think math is (more interesting than) Chinese.
I think Chinese is (less interesting than) math.
2.健康比财富更重要
Health is (of greater importance than) wealth.
Health is (more important than) wealth.
Wealth is (less important than) health.
3.我不喜欢这部电影,它不如那不激动人心.
I dont'like this movie.It is (not as/so exciting as) that one.
I dont'like this movie.It is (less exciting than) that one.
I dont'like this movie,because that one is (more exciting than) it.
4.虽然我没有钱,但我觉得我比他幸福
Though I have no money,I feel (I'm happier than) him.
Though I have no money,he is (not as/so happy as) me.