七)开篇 1) Many nations have been faced with the problem of ...
# @1 C, g( O5 E5 B. T0 c7 f; T2) Recently the problem has been brought into focus. * y. V- i0 G" S% @
3) Recently the phenomenon has become a heated topic. " t8 {: U* K% x/ `8 n- d
4) Recently the issue has aroused great concern among ...
1 R; T0 r- Z" u. S1 A0 S% u* ? 5) Nowadays there is a growing concern over ... " d1 b8 X6 Q/ \) K0 Z4 W
6) Never in our history has the idea that ... been so popular.
4 ]+ e7 w4 f! L. N2 [: ]9 t2 q' |$ z7) Faced with ..., quite a few people argue that ...
/ w+ i2 Y. {- q. W8) According to a recent survey, ... 8 [# w2 s1 x9 F' g D
9) With the rapid development of ..., ... |