表示比较和对照关系的句型：
1) A is to B what/ as C is to D(A之于B犹如C之于D)。
2) Just as…， so…
3) A and B have sth in common.
4) A is similar to B.
5) The same is true of,The same can be said of(……也是如此)。
6) The advantages of A are much greater than B.
7) compared with B, A has many advantages.
8) The advantages outweigh the disadvantages(利大于弊)。
9) Wonderful as A is, however, it has its own disadvantages too.
10) Although A enjoys considerable advantage over…， it can not compete with B in…
11) Contrary to widely accepted views, I believe that…
12) What people fail to consider is that…
13) It is one thing to insist that…， it is quite another to show that…
14) A is superior(inferior) to B.
15) …varies from person to person(……是因人而异的)
16) A is just the opposite (to B)
17) A differs from B in that…(A不同于B在于……)
18) …is not the same (as)
