2 . 我们将会从海洋保护中受益颇多，所以我们现在就行动起来吧。
a. We_________, so let’s take action right now.(benefit from)
b. _________, so let’s take action right now.(benefit sb)
c. _________, so let’s take action right now.(be of benefit)

3 . 一听说我们学校要举办成人礼（the coming-­of­-age ceremony），我高兴地跳了起来。
①________________, I jumped with joy.
②________________, I jumped with joy.

4 . 我认为有规律地锻炼身体很重要，因此我们学生必须积极准时地上体育课。
________________, so we students must have PE class actively and punctually.

5 . 常言道， “独木不成林”，我们的成功建立在与他人合作的基础上。
Just as the saying goes, “One tree doesn't make a forest”,   ________________.

6 . 尽管许多志愿者极其疲惫，依然专心于运送物资。
Extremely tired though a number of volunteers were, they were still _______________. (倒装句)

7 . 我每天专心读英文报并获得了丰富多彩的知识。
a. I _______________ and I have gained lots of colorful knowledge.
b. _______________, I have gained lots of colorful knowledge. (分词短语作状语)

9 . 通过比赛，她认识到只有努力才能成功。
Through the contest, she realized that ________________.