1 . 令我感到吃惊的是, 一些青少年如此沉迷于网络以至于无法集中于课堂。(汉译英)

2 . 演练开始前，老师就在地震中该做什么提供了基础有用的指导。(give...instructions on...)

3 . 尽管有时候一家人似乎根本无法和谐相处，但你还是可以采取行动改善这一局面。(汉译英)

4 . After singing some songs, the competitors danced onto the green field, waving their arms in the air as if they were eagles. (英译汉)

5 . 写出下列句子中while的汉语意思
1. While traveling can broaden your mind, I don’t think it’s a good idea to spend too much time and money on it. ____________
2. While there is life, there is hope.____________
3. While you’re in China, Mount Huangshan is a must to visit!____________
4. My deskmate likes English while I am fond of Chinese.____________

6 . She came up with several ideas about the house decoration ________ a fantastic one popped into her mind.

A．until

B．before

C．since

D．unless

7 . Enjoy the beautiful countryside as you spend a day driving along the new highway connecting Cusco to Lake Titicaca.（英译汉）

8 . 警报响起时，学生有序地离开了教学楼。(in order)

9 . Applying oil to the injured areas is a bad idea, as it will keep the heat in the wounds and may cause infection. （英译汉）

10 . 贝蒂的主要优势是无论情况多么紧急她都能保持冷静。
Betty’s main strength is her ability to keep calm no matter______________.