杜鹃（一种植物）与杜鹃鸟的细胞共有的结构是细胞膜、细胞质和细胞核，杜鹃（一种植物）细胞内特有的结构是____、____、____．

根据短文理解, 从A、B、C、D四个选项中选择正确答案填空。

    Mr. Smith 1 from London. Now he is in China. He is 2. He teaches 3 a middle school. He works very hard. His students like 4 very much. He can 5 a little Chinese. His students often teaches him Chinese 6 Sundays. Mr. Smith likes playing football. He often plays football 7 his students.

    Mr. Smith 8 a son. His name is Jack. He is student. He studies in a middle school. He goes to school 9 bike everyday. He gets back home at four in the afternoon. He likes 10 TV in the evening.

阅读《驻守荒原》一文，回答下列各题。
驻守荒原
        ①西大滩加油站到了，这是离藏区最近的青海加油站，海拔4150米，周围都是无边无垠的荒原。路过这里的司机，无论多晚，只要叫一声老韩，一个瘦小的男人就颠颠地奔出，披着军大衣，双手习惯性地拢在腰间。到了近前，老韩解开大衣纽扣，原来怀中藏着的是一只热水袋。寒潮一过境，加油站上就刮着吹哨子﹣般的寒风，气温很快降到零下20摄氏度，加油枪就容易被冻住，得用热水袋把它慢慢暖开。
        ②加完油，如果天色已经像墨汁一样浓黑，老韩会建议跑长途的货运司机在他家借住一晚，次日早上喝过老韩媳妇做的面片汤再走，这样安全。
        ③老韩应聘到此加油站工作前，四年中加油站已经换了七拨主人﹣﹣条件太艰苦，工资待遇低，每到夜晚，荒原上呜咽的风就像一个有冤屈的灵魂在游荡，听得人心里毛毛的；这里的海拔太高，就算是本地人，只要身体动作稍微快一点，太阳穴那里就像有一面小鼓在敲，突突地抽痛。因此，不论是加油站的领导，还是经常光顾的老司机们，都没想到老韩一来，转眼已待足八年。
        ④因为地处荒凉的高原，老韩一家人的饭食十分简单，长连七个多月的冬季只有洋葱、土豆和白菜这三样蔬菜，连老韩三岁半的孙女也吃这样简陋的饭食，可是万一哪个司机有点高原反应，老韩就赶紧吩咐媳妇给煮酸菜面片汤，把家里人都舍不得吃的鸡脯肉下在汤里，喝完汤，额头上密密麻麻出一层细汗，无休止敲打太阳穴的那面小鼓就停了。
        ⑤喝汤的人就说：“老韩，你要是不在这里干了，我们还怪不习惯的。”老韩很不能接受这样的赞美，局促地搓手回答：“一时半会儿离不开的，我舍不得儿子……”
        ⑥老韩的大儿子已经落葬在离加油站只有一里地的戈壁上，那里有方圆十几里地唯一的一棵红柳树，早被高原上的风吹成了贴地盆景的模样。儿子的去世是老韩心里永恒的痛：加油站由旧址搬往新址前，同为加油站员工的老韩的儿子前去看守物资，暖气还没有装好，半夜冻得睡不着，不得不烧炭取暖，就这样再也没有起来。
        ⑦老韩的媳妇说，老韩以前从不抽烟，但现在，他想儿子想得受不了时，会带上烟，慢慢走到红柳树下面，在那里抽上一根。
        ⑧每次，老韩走很远的路去抽烟，一向打扮得粉嘟嘟的小孙女就能感应到爷爷心里的难受，会寸步不离地跟着他。一老一小缓缓走去的背影、让在加油站门口闲聊打趣的司机们都安静下来，近乎肃穆地目送着他们。
       ⑨在远方，那棵孤独的红柳树悄然站立，枝条在寒风中抖动，犹扣火焰﹣般。
（选自《读者》2016年第5期，有删改）

阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出一个最佳选项。   
    “Daddy, can I have a piece of cake？” my oldest son asked me.
We had just been to the gym and stopped to eat at the restaurant.
    “No，” I replied, “you don't need a piece of cake.”
My son 1 15 in a few days. He 2  over 6 feet tall. He is very slim and athletic in shape . It was not always that way. My wife wrote a book about the challenge and   3   of getting him fit. He now takes it  4  and looks as if he's never been overweight in his life.
    He had a full plate of vegetables and tofu.  He didn't need a piece of cake.  5 ， everything in the restaurant is quite  6 . Our dinners could have  7 a family of seven at a fast food restaurant. That cake probably  8 $5.
    He was silent as he looked at the delicious cakes. I had forgotten that I had walked over to the cake shelf while he was   9 his food from the buffet (自助餐)．
    I looked at my plate. There sitting on the edge was a piece of 10. I looked at it wondering but also knowing how it got there. “We will divide it，” I said.
    A few days later my oldest son was  11me again. We stopped at a   12  . He ordered a sandwich. I then13 two sandwiches. He immediately barked, “Can I have two？” He wanted 14what Daddy had.
    Your kids are very   15 to put on their trays, exactly what you have on yours, and I think this applies to (适用于) more than food. Keep your life plate with only what you want your kids to have.

阅读下文，完成下面题目。

为自己减刑

        ①一位朋友几年前进了监狱。有一次我应邀到监狱为犯人们演讲，没有见到他，就请监狱长带给他一张纸条，上面写了一句话：“平日都忙，你现在终于获得了学好一门外语的上好机会。”
        ②几年后我接到一个兴高采烈的电话：“嘿，我出来了！”我一听是他，便问：“外语学好了吗?”他说：“我带出来一部六十万字的译稿，准备出版。”
        ③他是刑满释放的，但我相信他是为自己大大地减了刑。茨威格在《象棋的故事》里写一个被囚禁的人无所事事时度日如年，而获得一本棋谱后日子过得飞快。外语就是我这位朋友的棋谱，轻松愉快得几乎把他的牢狱之灾全然赦免。
        ④真正进监狱的人毕竟不多，但我却由此想到，很多人正恰与我的这位朋友相反，明明没有进监狱却把自己关在心造的监狱里，不肯自我减刑、自我赦免。
        ⑤我见到过一位年轻的公共汽车售票员，一眼就可以看出他非常不喜欢这个职业，懒洋洋地招呼，爱理不理地售票，时不时抬手看着手表，然后满目无聊地看着窗外。我想这辆公共汽车就是他的监狱，他却不知刑期是多久。其实他何不转身把售票当作棋谱和外语呢，满心欢喜地把自己释放出来。
        ⑥对有的人来说，一个仇人也是一座监狱，那人的一举一动都成了层层铁窗，天天为之而郁闷忿恨、担惊受怕。有人干脆扩而大之，把自己的嫉妒对象也当作了监狱。人家的每项成果都成了自己无法忍受的刑罚，白天黑夜独自煎熬。
        ⑦听说过去英国人在印度农村抓贼时方法十分简单，抓到一个窃贼便在地上画一个圈让他呆在里边，抓够了数便把他们一个个从圆圈里拉出来排队押走。这真对得上“画地为牢”这个中国成语了，而我确实相信，世界上最恐怖的监狱并没有铁窗和围墙。
        ⑧人类的智慧可以在不自由中寻找自由，也可以在自由中设置不自由。环顾四周多少匆忙的行人，眉眼带着一座座监狱在奔走。老友长谈，苦叹一声，依稀有锒铛之音在叹息声中盘旋。
        ⑨舒一舒眉，为自己减刑吧。除了自己，还有谁能让你恢复自由?
                                                                                                                                                      选自余秋雨的散文集《文化苦旅》