When Luke went to university he thought he would be on a new journey in life and getting his own place. In the UK, it's common to fly the nest at a fairly young age. Many choose a flat-share; others make plans to get on the property ladder.

    But the current economic situation forced Luke back to his mum's house at the age of 27. And he's not alone: a quarter of young adults in the UK now live with their parents. The Office for National Statistics said more than 3.3 million adults between the ages of 20 and 34 were living with their parents in 2013.

    Lack of jobs and the high cost of renting accommodation made Luke change his plans. He's upset. "There's something very difficult about being an adult living in an environment where you're still a child," he says. "It limits me socially; sometimes I feel it limits me professionally."

    Indeed, many young people have no choice but to stay at "the hotel of Mum and Dad".

    Krissy had to return home after a year away and now lives in rather terrible conditions, sharing the family's three-bedroom house with her sisters. She says they end up getting on each other's nerves when it's time to use the bathroom in the morning.

    Of course, living with your parents is not unusual in some countries. Economic conditions, culture, or family traditions mean many young people stay at home until they get married. Even then, it can be too expensive to rent or buy a house and the married couples continue to live at one of their parents' homes.

    But some parents seem to enjoy having their kids back at home. Janice's daughters are part of what's being called "the boomerang generation". She says, "I get to share their lives with them, and I've got to know them all as adults. We have the sort of conversations that good friends do."

    So for some it's a win-win situation — spending time with your families, and saving money.

the detective that the millionaire was probably murdered by his own daughter.

    The story of how I got my job was a funny one.

    One day, I was 1along a street to the interview 2 a yellow car suddenly cut in front of me. With another car coming in the other 3, I had to brake hard and bumped(撞到)another cyclist. We both fell, but 4 neither of us was hurt. I became 5 and cycled as fast as possible to the driver of the yellow car to tell him6 I considered him. I told him what a bad 7 I thought he was and he was a(n) 8to other people on the road. His face turned 9. I warned him not to drive 10 in the future so that everyone else could enjoy a long life.  

    I was in time for the 11. Having walked into the room, to my 12, I found one of the three interviewers 13 to be the driver of the yellow car. We looked at each other for a while, 14silent. Then I decided to look on the whole matter as a great 15!

    I laughed and told him that I talked much the last time we met and this time it was his 16 to talk a great deal.  

    Lost in thought for a while, he 17that I was not going to say anything about his bad driving. The interview went 18. Two days later, I received a letter offering me the job. I was pleased that the manager—the driver of the yellow car, didn't 19my rudeness to him.

    Through the experience, I find something that seems impossible at first sometimes 20 to be good.

写出下列物质的分子式：

①

②

③

④ ．

We laughed his strange clothes.

战士冲出重重封锁，获得胜利；科学家在研究中拨开迷雾，发现真相；文学家穿越现实的荆棘，抵达心灵的彼岸……人类总在不断摆脱困境，进行“突围”。

人生会有很多困境，学习生活上的困难挫折，和家人、同学、老师的矛盾，甚至内心善与恶、美与丑的挣扎……都需要我们去突围，走出困境，走向一片新天地。对此，你有怎样的感受或思考？

请以“突围”为题，写一篇不少于800字的作文。不要套作，不得抄袭。

①体积都是22.4 L            ②具有相同的体积

③都是双原子分子            ④具有相同的分子数目

①分子数 ②原子总数 ③碳原子数 ④质量