语法填空：（10×1.5）
When I wake up I don’t get __1___ immediately. I turn on the television __2___ watch the children’s programmes and old movies until about half-past ten. Then I get up. go downstairs and switch on the TV _3__ the living room. For lunch, I have biscuits and a glass for milk, and _4__ watch the news .In the afternoon, I often watch another old film-they __5_ showing some good ones at the moment. In the evenings, I often _6__ TV series or sport and the news again. I like the main news __7_ six o’clock. At nine thirty, if there is __8__ good play on BBC 2, I switch over and watch __9__. Then at night, I watch more films and I usually switch off the TV at about two o’clock. I _10__ watch the TV all night.
，从而对人体产生危害。该同位素原子的中子数和质子数之差为 