1 . 他之所以被这部电影深深打动的原因是他也曾遭受过如此严重的自然灾害。(定语从句，affect，suffer) (汉译英)

3 . 关于为何我们要在社交生活和工作之间保持平衡，有很多原因。(there be; variety) （汉译英）

4 . 众所周知, 无论电脑如何普及, 有些工作得由人工完成。这就是电脑不能完全取代人的原因。
________, ________ popular computers are, some work must be done by hand. ________ computers can’t completely replace human beings.

5 . 青少年轻微超重是正常的，没有理由为此焦虑。然而，如果超重到达到危险程度，新尝试以适当方式减重很重要。
It is normal for teenagers to be slightly overweight and there is no reason ________ they should be worried. However, for those ________ are dangerously overweight, it is very important that they try to lose weight properly.