1 To my surprise，the post was flooded with comments expressing warm feelings.
让我惊讶的是，这篇帖子收到了许多温暖的评论。
精讲（1）to one’s surprise意为“使某人惊讶的是”。
▸ To our surprise，the boy won the prize.
令我们惊奇的是，这个男孩获奖了。
（2）be flooded with意为“大量收到……；被……淹没，充满”。
▸ The highway ahead seems to be flooded with water. 前方的公路似乎被水淹了。
精练（1）使我们惊奇的是，他通过了所有考试。
，he passed all the exams.
（2）市场上将充斥着做工粗糙的同类产品。
The market will the same kind of badly-made products.

1. (1) To our surprise (2) be flooded with

2 A truth hit me—it was my duty to keep
the art alive because puppetry was in my
blood. 我猛然醒悟——传承这门艺术是
我的责任，因为木偶戏早已融入我的血脉。
精讲（1）句式结构为“It is +名词+ to do sth.”。It 作形式主语。真正的主语是 to do sth.。
▶ It is our duty to keep our school clean.
保持学校干净是我们的职责。
（2）keep 的常用搭配：

▶ Please keep your pet quiet when you come in.
你们进来时就要让宠物保持安静。
精练（1）It is a (please) to meet you.
（2）The workers in the museum can keep this painting (live).
（3）学好英语是一个挑战。
learn English well.
（4）我们应该保持教室干净整洁。
We should our classroom and tidy.

2. (1) pleasure (2) alive (3) It is a challenge to (4) keep; clean