1. Tomstudied hard so that he would do well on the test.
2. Tomstudied hard so he would do well on the test.
3. Tomstudied hard, so he would do well on the test.
4. Tomstudied so hard that he would do well on the test.
请问以上四个句子的不同之处？
①Tomstudied hard so that he would do well on the test.
②Tomstudied hard so he would do well on the test.
③Tomstudied hard, so he would do well on the test.
④Tomstudied so hard that he would do well on the test.
句意：汤姆学习非常努力，所以他在考试中会考得非常不错的。
句①=④，均为结果状语从句；句②是在so之后省略了that；句③中的so为并列连词，构成并列句，意义同and。
▲有关so…that和so that的使用方法，请参考英语语法网上的一篇文章：
http://www.yygrammar.com/Article/201505/3974.html
