假如你是新华一中的学生李华，你从网上看到John在某英语俱乐部发布里一个帖子邀请各国爱好英语的学生家人该俱乐部，以加强交流，提高英语水平。请你根据一下要点提示，用英语写封电子邮件。

要点：1).简单介绍自己（如：哪国人，爱好等）

2).决定参加该俱乐部的原因（交朋友，提高英语水平）；

3).希望成为其中一员。

注意：1).词数100左右

2).可适当增加细节，是行文连贯；开头和结尾已给出，不计入总词数。

Dear John,

    I'm glad to read the post on the Internet that you welcome students who like English.

……

Yours,

Li Hua

下列各句中，加点词语使用正确的一项是（   ）

取A、B两份物质的量浓度相等的NaOH溶液，体积均为50 mL，分别向其中通入一定量的CO₂后，再分别稀释到100 mL，在稀释后的溶液中分别逐滴加0.1 mol/L的盐酸，产生的CO₂的体积(标准状况)与所加盐酸的体积关系如图所示：

Pd（相对原子质量207）中加入王水（浓硝酸与浓盐酸的混合物）的反应可以表示：Pd+HCl+HNO₃→A+B↑+H₂O（未配平）．其中B为无色有毒气体，该气体在空气中不能稳定存在；A中含有三种元素，其中Pd元素的质量分数为42.4%，H元素的质量分数为0.8%．通过计算判断物质A的化学式 

我一定努力实现自己的宏伟目标。

I must try .

语篇填空

    Chinese proverbs are rich and they are still widely used in Chinese people's everyday life.   these proverbs there are often interesting stories. For example, the proverb," plucking(拔)up crops  (help)them grow", is based on the following story.  

    It is said that a short-tempered man in the Song dynasty(宋朝)was very anxious to help his rice crops grow up  (quick). He was  (think) about it day and night. But the crops were growing much slower than he expected. One day, he came up   an idea that he would pluck up all of his crops a few inches. He did so the next day. He was very tired after (do) this for a whole day, he felt very happy since the crops did "grow"(high). His son heard about this and went to see the crops. Unfortunately the leaves of the crops began to wither(枯萎).  

    This proverb is saying we have to let things go in their (nature) course. Being too anxious to help an event develop often (result)in the contrary(相反)to our intention.

下列化学用语正确的是（   ）

下列化学用语中，不正确的是（　　）

— Are you coming to Betty's wedding?

— I'm not sure. I ______ go to Beijing on business that day.

Tom is considered as the most s football player in his school.

C和 C是碳元素的两种核素，它们具有不同的（   ）

课文语篇填空

   China's first manned spaceship  off in Jiuquan, Gansu . The spaceship, called Shenzhou Ⅴ, carried China's first , Yang Liwei who started training for his space   in 1998.  

Yang said when the spaceship  from the rocket, he got a feeling of soaring into the sky because of the zero  . When the spaceship was doing its seventh circle, Yang showed the flags of China and the United Nations, expressing the  of the Chinese people to explore and use space  .  

As Yang returned into the earth's , helicopters were flying to where he would land, ready to collect him. When Yang climbed out of the spaceship, he smiled and   to the crowds waiting for him. He said he thought 21 hours was too short to stay in space.  

某中学化学兴趣小组为了测定某矿山石灰石中碳酸钙的质量分数，取石灰石样品与足量的10%的稀盐酸在烧杯中反应（假设石灰石样品中杂质不与稀盐酸反应也不溶于水）．有关实验数据如下表：

	反应前		反应后
实验 数据	烧杯和稀盐酸的质量	石灰石样品的质量	烧杯和其中混合物的质量
	134.4g	10g	141.1g

请计算（写出计算过程）：

在托盘天平的两盘上，分别放有两个质量相同的烧杯，各盛有6 mol·L^－1HCl 100 mL，使天平达到平衡。分别向两烧杯中加入不超过5 g 的镁和铝，若要使其充分反应后天平仍保持平衡，则加入的镁与铝的质量之比为(   )

在5mL0.02mol/L某金属氯化物（MCl_n）溶液中，滴加0.05mol/L AgNO₃溶液，生成沉淀质量与加入AgNO₃溶液体积关系如图所示，则该氯化物中金属元素的化合价为（   ）

He is good at sports, and he has got the chance to realize his father's dream to be a professional a.

△ABC中，tanA是以﹣4为第三项，﹣1为第七项的等差数列的公差，tanB是以 为第三项，4为第六项的等比数列的公比，则该三角形的形状为．

阅读下面的文字，完成问题

什么东西都可以低估，但唯独不能低估青春的能量：青年时期的积累与沉淀，往往影响着一个人一生的发展。

诗人艾青有句名言：“为什么我的眼里常含泪水，因为我对这土地爱得深沉。”家国情怀是一种源自内心的质朴情感，也可说是每个人的立身之本。对于当代青年来说，只有常怀感恩之心、砥砺家国情怀，才能自觉地把个人的前途命运与国家、民族、社会紧密地融合在一起。

家国情怀深深植根于我们的灵魂之中，内化于心、外化于行，铭刻于骨、融化于血。家国情怀既体现为一种民族大义，也是赓续传承的文化传统。大禹治水三过家门而不入，戚继光抗倭保家卫国……回溯既往，从神话故事到历史典故，浓浓的家国情怀之中，都体现着民族大义。《礼记. 大学》的“修身、齐家、治国、平天下”，屈原的“路漫漫其修远兮，吾将上下而求索”，范仲淹的“先天下之忧而忧，后天下之乐而乐”……家国情怀世代相传，成为中国人的一种文化基因。事实证明，没有伟大的国家和民族，就难言个人的尊严。因此，无论何时，我们都应将家国情怀牢记在心。

人无精神不立，国无精神不强。家国情怀突出体现为爱国年献的精种、堪称一种精神坐标。邓小平同志曾说：“我是中国人民的儿子，我深情地爱着我的祖国和人民。”真挚的话语，饱含着爱与真情，正是浓厚家国情怀的写照。“家是最小国， 国是千万家”。爱国不能停留在口头上，而应体现在行动之中。西藏玉麦乡牧民卓嘎、央宗姐妹的事迹为什么感动了亿万人？就在于她们以行动诠释爱国情感，为祖国守护神圣土地。对于个体而言，要关注国家为我们做了些什么，更要多问问自己为国家能做什么、做了些什么。可以说。家国情怀需要我们爱国、奉献、担当、作为，在日常工作生活中不断升华爱国奋斗精神。今天，家国情怀更体现为一种时代责任。奋进在新时代，亟待我们激荡新气象、成就新作为，为实现中华民族伟大复兴的中国梦凝聚磅礴力量。青年强则中国强，只有青年肩负起时代重任，我们未来的道路才会越走越宽广。对于年轻人来说，“舞台再大，自己不上台永远是个观众”，决不能置身事外、冷眼旁观；“平台再好，自己不参与永远是个局外人”，决不能自甘平庸、安于现状；“能力再大，自己不行动永远是个失败者”，决不能踟蹰不前、不思进取。不忘初心、牢记使命，激扬青春、崇尚奋斗，当代青年才能不负使命担当，在爱国奉献中实现个人价值。

“青年者，人生之王，人生之春，人生之华也。”青春是用来奋斗的，而不是用来虚度的。新时代是奋斗者的时代，更为青年提供了干事创业、成长成才的广阔舞台。厚积薄，发、久久为功，当代青年必将在奋斗中书写无愧于时代的业绩。

(摘自周德睿《青年当永葆家国情怀》)

It's not your fault, so you needn't be _______of yourself.

短文改错

    How are you recent? Now I want to tell you something about my English teacher Mr Li. He is a forty-years-old handsome man. He has a happy family. He's outgoing and gets along good with us. Her classes are very interesting. After class, he often helps us on our English. He never smokes. He like sports and he is especially good at playing the chess.

    Most my classmates like him and think what he's not only a good teacher but also a good friend.

    I was looking forward to your reply.