考生在更改SAT考试和SAT2考试的时候是需要补交费用的，SAT考试的费用是49美元，SAT 2考试Subject Test的费用是语言测试每门22美元/其他科目每门11美元。

　　There is no charge for changing from one Subject Test to a different Subject Test. If you want to substitute one Subject Test for another, you should do so at the test center. You may substitute any Subject Test offered except the Language Tests with Listening. You cannot change to a listening test on test day because test centers do not have extra CDs. If you want to change to a listening test or from one listening test to another, you must do so by the late registration deadline, or three weeks bore the test date if testing internationally.

　　可以先报名SAT Subject考试，然后再更改科目。如果你从SAT Reasoning改成SAT Subject或者反之，需要手续费。如果更改Subject科目，不需要手续费。但你不可以更改language Subject with listening(带听力的)，也不可替换。如果你非要更改或替换带听力的考试，那要在报名截止之前或者考前三周更改。

　　大家如何确定自己是否需要更改SAT2考试科目呢?

　　There are three types of SAT II test: those you must take, those you should take, and those you shouldn’t take.

　　· The SAT II tests you must take are those required by the colleges you are interested in.

　　· The SAT II tests you should take are tests that aren’t required, but that you’ll do well on, thereby impressing the colleges looking at your application.

　　· The SAT II tests you shouldn’t take are those that aren’t required and cover a subject you don’t feel confident about.

　　Determining Which SAT II Tests Are Required

　　You’ll need to do a bit of research to find out if the colleges you’re applying to require that you take a particular SAT II test. Call the schools you’re interested in, look at their web sites, or talk to your guidance counselor.

　　You can change your test from the SAT to SAT Subject Tests or from SAT Subject Tests to the SAT if you pay the change fee.

　　以上就是关于SAT考试和SAT2考试之间的更改以及SAT2考试科目之间的更改方法以及选择方法等介绍，非常详细，对于选择的原因介绍是大家在处理更改科目之前一定要了解的。

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