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题目列表(包括答案和解析)

书面表达(满分20分)
假如你是Simon,请你写一封信给你的笔友Peter,告诉他你的问题,并且向他请求帮助。
提示:1.喜欢交朋友,经常花很多时间在网上聊天。
2. 喜欢踢足球,经常呆在外面很晚才回家,认为父母要求严格。
3. 不能按时交作业,不时感到有压力。
4. 父母和老师不喜欢这样,并认为花太多时间在玩上是不明智的。
注意:1.短文应包括所给内容要点,可适当发挥,使文章连贯;
2.词数90左右,短文开头已给出,不计总词数;
3.文中不得提及考生所在的学校及自己的姓名;

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阅读下面的表格,然后回答问题。

Name

Where

Favourite colour

Clothes

Li Ping

In the classroom

Green and white

A white shirt and a pair of  blue pants

Liu Ling

In the library

Red and blue

A new blouse and a red skirt

Zhang Hong

In the classroom

Pink

An old pink dress

1.Where is Liu Ling?

____________________________________

2.Whose favourite colour is pink?

____________________________________

3.What colour are Li Ping’ s pants?

____________________________________

4.Is Zhang Hong’s dress new?

____________________________________

5.How many colours does Li Ping like?

____________________________________

 

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实验室用铜制取硫酸铜,将适量硝酸分多次加入到铜粉与稀硫酸的混合物中,加热使之反应完全,通过蒸发、结晶得到硫酸铜晶体。
(1)为了节约原料,硫酸和硝酸的物质的量之比最佳为:    ;为了吸收该反应中产生的尾气,请选择下列中合适的装置       

(2)为符合绿色化学的要求,某研究性学习小组进行如下设计:
第一组:以空气为氧化剂法
方案1:以空气为氧化剂。将铜粉在仪器B中反复灼烧,使铜与空气充分反应生成氧化铜,再将氧化铜与稀硫酸反应。
方案2:将空气或氧气直接通入到铜粉与稀硫酸的混合物中,发现在常温下几乎不反应。向反应液中加少量FeSO4,即发生反应,生成硫酸铜。反应完全后,加物质甲调节pH ,铁元素全部沉淀(一般认为铁离子的浓度下降到10-5mol·L-1,就认为沉淀完全),然后过滤、浓缩、结晶。
已知:Ksp[Cu((OH)2]≈10-22, Ksp[Fe((OH)2]≈10-16,  Ksp[Fe((OH)3]≈10-38
请回答下列问题:
如开始加入的铜粉为3.2 g,最后所得溶液为500 mL,溶液中含有铁元素0.005 mol。
①方案1中的B仪器名称是       
②为了使铁元素全部沉淀,应调节pH至少为_________。
③方案2中甲物质可选用的是             
A.CaOB.NaOHC.CuCO3D.Cu2(OH)2CO3 E、Fe2(SO4)3
④反应中加入少量FeSO4可加速铜的氧化,用离子方程式解释其原因        
第二组:过氧化氢为氧化剂法
将3.2g铜丝放到45 mL 1.5mol·L-1的稀硫酸中,控温在50℃。加入18mL 10%的H2O2,反应0.5h,升温到60℃,持续反应1 h后,过滤、蒸发浓缩、减压抽滤等,用少量95%的酒精淋洗后晾干,得CuSO4·5H2O 10.5g。
请回答下列问题:
⑤反应时温度控制在50℃~60℃不宜过高的原因是         
⑥本实验CuSO4·5H2O的产率为         

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假如你是一名初三学生李平,你要写一封信给青少年专家Sigmund Friend,告诉他你遇到的问题,并请求帮助。请根据下列要点,用英语写完这封信。
1.去年刚随父母来到无锡,在这里没有可以交谈的亲密朋友。
2.父母很忙,没时间和我交流。
3.对我很严格, 只关心我的分数。
4.我没信心,考试总使我感到很有压力。
5.我不知道……我希望……
注意:1. 第5点用2--3句话展开,作合理发挥;
2. 词数80个左右,信的开头和结尾已给出,不计入词总数。
Dear Sigmund Friend,
I’m a Grade 9 student.
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
I hope to hear from you soon.
Yours,
Li Ping

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阅读短文, 根据短文内容回答问题。(共10分,每小题2分)

Mark Twain was the pen name of Samuel Langhorne Clemens. He was born on November 30, 1835, in a small town in Florida, the USA. He grew up with a few naughty boys who later appeared in his stories. Perhaps you are familiar with some of his books, as The Adventures of Tom Sawyer and The Adventures of Huckleberry Finn. At the age of 12, his father died, and he began to work, first as a printer, then a pilot on a river boat. Those years on the boat went into his book Life on the Mississippi.

    During the Civil War he worked as a reporter and used Mark Twain as his pen name. The stories he wrote in this period made him famous and popular. He made a lot of money by writing, lecturing and running his own publishing house. But he spent all of it on his high living and unsuccessful business.

    Mark Twain was known as a world-wide famous writer and a humorist, which means funny man. But in fact, he took a serious view of life. Many sad things happened in his own life. All his experiences helped to shape his stories which showed the dark side of the society. He died as an old man of 75 in 1910.  (200)

1.What did Mark Twain do when he was 12?

2.Did Mark Twain write himself and his friends in his stories?

3.When did Mark Twain become famous?

4.What is Mark Twain’s writing style?

5.What does the passage mainly tell us and what does the writer think of Mark Twain?

 

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