下列说法中错误的是 （   ）

①质子数相同的粒子一定属于同种元素；②同位素的性质几乎完全相同；③质子数相同，电子数也相同的粒子，不可能是一种分子和一种离子；④电子数相同的粒子不一定是同一种元素；⑤一种元素只能有一种质量数：⑥某种元素的相对原子质量取整数，就是其质量数。

Mg、Al混合物与足量盐酸反应，产生标况下的氢气4.48 L，下列说法不正确的是（   ）

上述五种粒子中属于阳离子的是

下列各句中，标点符号使用正确的一项是（   ）

Even though the weather in London is a, many tourists go to the city every year.

某气态不饱和链烃C_nH_m与H₂反应生成C_nH_m+n ， 取CnHm和H₂混合气体共60mL进行实验，发现随混合气中H₂所占体积的变化，反应后得到的气体总体积数也不同．反应前混合气体中H2所占的体积V（H₂）和反应后气体总体积V（反应后总）的关系如图所示（气体体积均在同温同压下测定）．由此可知n的数值是（   ）

下图是100 mgCaC₂O₄·H₂O受热分解时，所得固体产物的质量随温度变化的曲线。试利用图中信息结合所学的知识，回答下列各问题：

下面文章有5处需要添加小标题。请从以下选项（A、B、C、D、E和F）中选出符合各段意思的小标题，选项中有一项是多余选项。

A．Take actions                             B．Accept Yourself C．Maintain a Diary                         D．Reflect on the Past E．Focus on Yourself                        F．Give Yourself a break

How to Find Yourself

    Do you often feel lost？Do you think you are living somebody else's life? If yes, discover ways to find yourself by going through the following article.

    If you are thinking, “how to find yourself when you are lost?”, then the first thing to do is to have a rest from everything—work, personal life and all worldly things. Give time to yourself to think why you seem lost. Is it because of over work? Is it because you are not leading a life that you want to? Or is it because you are not satisfied with the people or things around you? Try to find answers to these questions to determine the cause behind your restlessness.

    For once, instead of being the way others want you to be, be yourself. Look within and find yourself in you. Think about the things that you would want to do if you didn't have any family obligations or any money issues. Think about the kind of relationship you would want to be in, the place that you would like to stay in, the kind of lifestyle you would like to lead, if you didn't have the society or people around you, judging all the time. If you really want to know how to find inner peace, then think, what you would want others to describe you as—an honest person? Or adventurous? Or loving, or realistic? Once you look within, you will know the answer and then try to be exactly that.

      Thinking deeply about the past, the time or situations when you were the happiest, is another way to find yourself .Think what you were doing or with whom you were, when you were the happiest. This will help you to identify things that you want to do in life that make you happy and also certain people whose company you enjoy.

    Knowing yourself and determining what you to do with your life will not come to you in a day or two. Discovering oneself is an ongoing process and it can take months or sometimes even years to truly find yourself. So, it's important that you maintain a written record of all your feelings and thoughts, which you can go through at a later stage. Pour all your emotions and feelings about life in it and who knows may be one day going through it, you will find yourself.

      Once you have discovered what you want to do with your life, make a move for change and self improvement. Even if it means taking up small things such as dancing or painting, go ahead and do it. If you want a career change, plan and take steps so that it can take place smoothly. If you are stuck in a bad relationship and find yourself unable to mend it, break away. At the beginning, you may find yourself slightly unbalanced, but with time everything will be fine.

    It is very important for you to truly find yourself, before it is too late. If you do not find yourself now, you will spend your life with somebody you do not even know, i.e. yourself.

阅读理解

    We were on the way from Hutchinson to Chicago for a short spring break. For many years I had wanted to take my family on the train. We all had been to Chicago four years ago, and the kids loved it. Chicago is one of my favorite cities, too, so the thought struck me again last fall to ride the train to Chicago. Of course, flying would have been faster. But I don't think flying is easier, especially these days, with all the security and waiting in lines at airports.

    Though we were tired in the middle of the night, the kids got on the train with the exhilaration of this adventure. “We're moving,” my son William shouted happily with big eyes as the train began to pull away from the Hutchinson station.

    I removed my shoes and lay down to try to finish my night's sleep. The sleeper car would have better enabled that, but the ordinary train seats were not too bad. An airline flight is a more miserable experience for me: not enough room, two hours of pain with my knees almost touching my chin, the hard seatback in front cracking my kneecaps (膝盖) with every move of the body planted in front of me. On the train I could almost outstretch all of my 6-foot-2-plus body in the generous legroom.

    The journey didn't feel at all as long as it was. We all found the train ride a joy. The car ride would have felt every minute of 13 hours. But on the train you are free to walk around, sit in the observation carriage for a while and enjoy the scenery out the windows, have a nice meal in the dining car, read a book, or play a board game.

    In short, the train is all about enjoying the trip, which isn't something I do so much when traveling by airline or by car, when the trip seems more of a mission (任务) to get there than an experience to enjoy along the way.

    Chicago offers much to do for a family. This time, getting there was half the fun.

The Bank of China is in the centre of this city.

It's (tradition)in America to eat turkey on Thanksgiving Day.

He  (occupy) with a book.

短文改错。

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）．每处错误及其修改均限一词。

2）．只允许修改10处，多者（从第11处起）

    Last week, our school had organized an activity to climb the West Mountain. As soon as we arrived at the foot of a mountain, we set out for the summit in high spirits. During the climb, we had such much difficulty passing the rocky areas. But under the teacher's help, we eventually reached the top, where we greeted by the bright sunshine and fresh air. Seeing from the top, the city was extreme beautiful. This event turned out to be very success. Not only did we take a break from our heavy school work, and also we learned what to communicate with each other.

puzzled

阅读理解

    Most people who move to a foreign country may experience a period of time when they have a lot of stress in the new culture. This feeling is often called “culture shock” and it is important to learn how to deal with culture shock. First of all, you should know that everyone in a new situation will go through some form of culture shock. There are four general stages of cultural adjustment(适应).

    The first stage is usually referred to as the honeymoon stage. Upon arriving in a new environment, you'll be interested in the new culture. Everything will seem exciting, and everyone will seem friendly and helpful.

    The second stage is called the withdrawal stage. The excitement that you felt before changes to frustration(沮丧) as you find it difficult to deal with new problems. The language is hard to learn; friends are hard to make; simple things like shopping and going to the bank are challenges. It is at this stage that you are likely to feel anxious and homesick.

If you are one of those who manage to stick it out (坚持下来), you will enter the third stage—- the recovery stage. At this point, you'll feel more confident in the new culture. You'll start to understand and accept the way things are done and the way people behave in your new environment.

The last stage is the stability stage—- this is the point when people start to feel at home in the new culture. At this stage, you will behave well in the new culture, and prefer some aspects(方面) of the new culture to your own culture.

    There is, in a sense, a fifth stage to this process. If you decide to return home after a long period in a new culture, you may experience what is called “reverse culture shock”. This means that you may find aspects of your own culture “foreign”, because you're so used to the new culture. Reverse culture shock is usually pretty mild(温和的) and doesn't last for very long.

2molFeCl₂与1molCl₂恰好完全反应，则产物的物质的量为(   )

赏析小说的诗意

材料一：

我们走进老乡的院子里，只见堂屋里静静的，里面一间房门上，垂着一块蓝布红额的门帘，门框两边还贴着鲜红的对联。我们只得站在外面向里“大姐、大嫂”的喊，喊了几声，不见有人应，但响动是有了。一会儿，门帘一挑，露出一个年轻媳妇来。这媳妇长得很好看，高高的鼻梁，弯弯的眉，额前一溜蓬松松的刘海。穿的虽是粗布，倒都是新的。我看她头上已硬挠挠地挽了髻，便大嫂长大嫂短地向她道歉，说刚才这个同志来，说话不好别见怪等等。她听着，脸扭向里面，尽咬着嘴唇笑。我说完了，她也不作声，还是低头咬着嘴唇，好像忍了一肚子的笑料没笑完。这一来，我倒有些尴尬了，下面的话怎么说呢！我看通讯员站在一边，眼睛一眨不眨地看着我，好像在看连长做示范动作似的。我只好硬了头皮，讪讪地向她开口借被子了，接着还对她说了一遍共产党的部队，打仗是为了老百姓的道理。这一次，她不笑了，一边听着，一边不断向房里瞅着。我说完了，她看看我，看看通讯员，好像在掂量我刚才那些话的斤两。半晌，她转身进去抱被子了。

（节选自茹志鹃《百合花》）

材料二：

一轮满月升起来了，照亮了寂静的山谷、灰白的小路，照亮了秋日的败草、粗糙的树干，还有一丛丛荆棘、怪石，还有漫山遍野那树的队伍，还有香雪手中那只闪闪发光的小盒子。

她这才想到把它举起来仔细端详。她想，为什么坐了一路火车，竟没有拿出来好好看看？现在，在皎洁的月光下，她才看清了它是淡绿色的，盒盖上有两朵洁白的马蹄莲。她小心地把它打开，又学着同桌的样子轻轻一拍盒盖，“嗒”的一声，它便合得严严实实。她又打开盒盖，觉得应该立刻装点东西进去。她丛兜里摸出一只盛擦脸油的小盒放进去，又合上了盖子。只有这时，她才觉得这铅笔盒真属于她了，真的。她又想到了明天，明天上学时，她多么盼望她们会再三盘问她啊！

（节选自铁凝《哦，香雪》）

材料三：

月亮升起来，院子里凉爽得很，干净得很，白天破好的苇眉子湿润润的，正好编席。女人坐在小院当中，手指上缠绞着柔滑修长的苇眉子。苇眉子又薄又细，在她怀里跳跃着。

要问白洋淀有多少苇地，不知道；每年出多少苇子，不知道。只晓得每年芦花飘飞苇叶黄的时候，全淀的芦苇收割，垛起垛来，在白洋淀周围的广场上，就成了一条苇子的长城。女人们，在场里院里编着席。编成了多少席？六月里，淀水涨满，有无数的船只运输银白雪亮的席子出口。不久，各地的城市村庄就全有了花纹又密又精致的席子用了。大家争着买：“好席子，白洋淀席！”

这女人编着席。不久，在她的身子下面就编成了一大片。她像坐在一片洁白的雪地上，也像坐在一片洁白的云彩上。她有时望望淀里，淀里也是一片银白世界。水面笼起一层薄薄透明的雾，风吹过来，带着新鲜的荷叶荷花香。

但是大门还没关，丈夫还没回来。

（节选自孙犁《荷花淀》）

阅读下面的文字，完成下题。

包拯字希仁，庐州合肥人也。始举进士   ，出知建昌县，以父母皆老，辞不就，得监和 州税，父母又不欲行，包拯即解官归养。后数年亲继亡。拯庐墓终丧，犹徘徊不忍去，里中父老数来劝勉。久之，赴调,知天长县。徙知端州，迁殿中丞。端土产砚，前守缘贡，率取数十倍以遗权贵。拯命制者才足贡数，岁满，不持一砚归。

去使契丹，契丹令典客谓拯曰：“雄州新开便门，乃欲诱我叛人，以刺疆事耶？”拯曰： “涿州亦尝开门矣，刺疆事何必开便门哉？”其人遂无以对。

召权知开封府，迁右司郎中。拯立朝刚毅，贵戚宦官为之敛手，闻者皆惮之。人以包拯笑比黄河清，童稚妇女，亦知其名，呼曰“包待制”。京师为之语曰：“关节不到，有阎罗包老。”旧制，凡讼诉不得径造庭下。拯开正门，使得至前陈曲直，吏不敢欺。中官势族筑园榭，侵惠民河，以故河塞不通，适京师大水，拯乃悉毁去。或持地券自言有伪增步数者， 皆审验劾奏之。

迁谏议大夫、权御史中丞。奏曰：“东宫虚位日久，天下以为忧，陛下持久不决，何也？”

仁宗曰：“卿欲谁立？”拯曰：“臣不才备位乞豫建太子者为宗庙万世计也陛下问臣欲谁立是疑臣也臣年七十且无子非邀福者。”帝喜曰：“徐当议之。”请裁抑内侍，减节冗费，条责诸路监司，御史府得自举属官，减一岁休暇日，事皆施行。迁给事中，为三司使。拜枢密副使，迁礼部侍郎，辞不受，寻以疾卒，年六十四。赠礼部尚书，谥孝肃。

拯性峭直，恶吏苛刻，务敦厚，虽甚嫉恶，而未尝不推以忠恕也。与人不苟合，不伪辞色悦人，平居无私书，故人、亲党皆绝之。虽贵，衣服、器用、饮食如布衣时。尝曰：“后世子孙仕宦，有犯赃者，不得放归本家，死不得葬大茔^①中。不从吾志，非吾子若孙也。

（节选自《宋史·包拯传》）

向100mL NaOH溶液中通入一定量的CO₂气体，充分反应后，再向所得溶液中逐滴加入0.2mol/L的盐酸，产生CO₂的体积与所加盐酸体积之间关系如图所示．下列判断正确的是（   ）

下列表示正确的是（   ）

Neither side is prepared to talk to_______ unless we can smooth things over between them.