Sat 1 is an ordinary college entrance examination for American high school students. It is divided into reading and writing (including a composition) and mathematics, with 800 points for each part. The math part is very simple, and reading is difficult, mainly because the vocabulary and reading speed are very high. Writing can be improved by doing problems, which is not difficult. Generally, the top 50 schools need sat 1, and some schools behind them also need sat 1.

Sat2 is a single subject test in different disciplines, including mathematics 1 mathematics 2, physical biochemistry, American history and so on. The depth is wide, mathematics is not difficult, and physical chemistry is not difficult, but the knowledge is wide and needs special study. You can take the exam in a month (with a domestic high school foundation).

The schools required by sat2 are generally in the top 30. Uc School canceled the sat2 requirement last year, but it can also submit it. Some schools in the back also need sat2, which must be a compulsory test.

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