历年TOEFL听力段子中最常考的建议类结构汇编：
1) You should
2) I suggest / I propose / I recommend
3) proposal / tips / suggestion / advice/ recommedation
4) had better do sth. / be better off doing sth.
5) How about…? / What about…?
6) Why not…? / Why don’t you…?
7) If I were you, I would…/ I wouldn’t…
8) Would it make things go faster if you…?
9) Maybe / Perhaps you…
10) How does … sound-
历年TOEFL听力段子中最常考的转折类结构汇编：
1) but …
2) however …
3) nevertheless …
4) while …
5) yet …
6) unless …
7) except for …
8) actually …
9) in fact …
10) To tell you the truth …
11) practically …
12) virtually …
13) as a matter of fact …
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