1 . 不知是有意还是无意，那名飞行员让飞机来了个急转弯。
The pilot, whether _________, made the plane do a sharp turn.

2 . 这几乎是个意外发现。
The discovery was made almost_________.

7 . 阅读下面句子，根据中文提示从方框内选择合适的单词，在空白处填入其适当形式。

in charge of ,        break down ,        as a matter of fact,       rather than, turn to,        by chance,        to sum up,        appeal to

1. ___________(总之), I’d like to say the conference is a great success.
2. We should learn to think independently and make our own judgments ___________(而不是) blindly follow the crowd.
3. Mary always ___________(转向，求助) me for help when she is in trouble.
4. Could I speak to whoever is ___________(负责) International Sales, please?
5. With the plan carried in our city, we can better _________(呼吁) people to reduce pollution.

10 . 王维偶然发现了韩干的艺术天赋。
It was Wang Wei who discovered Han Gan’s artistic talent _________________.