【题目】[双选]对于常温下pH为2的盐酸,叙述正确的是
A.c(H+)=c(Cl)+c(OH)
B.与等体积pH=12的氨水混合后所得溶液显酸性
C.由H2O电离出的c(H+)=1.0×1012 mol·L1
D.与等体积0.01 mol·L1乙酸钠溶液混合后所得溶液中:c(Cl)=c(CH3COO)
科目:高中地理 来源: 题型:
【题目】根据汉语意思完成句子,一空一词。
【1】止痛药有副作用,一次应该只吃一片。
Painkillers have ____ ____so you should only take one pill____ ____ ___.
【2】你看到那边的新楼了吗?那将是我们的新实验楼。
Do you see the new building over there? We____it____ ____our new laboratory.
【3】凯文一看到他的旧足球,叹了一口气,充满了愧疚。
Kevin ____ ____ ____ ____ at the sight of his old ball, and ____ ____ a sad sigh.
【4】迈克在足球方面没什么天赋。
Mike____ ____ ____ ____ soccer.
【5】迈克在旧袜子上裹了一块塑料纸做了一个足球。
Mike ____a ball ____ ____ old socks ____ ____a piece of plastic.
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科目:高中地理 来源: 题型:
【题目】To achieve your goal, yourself and your direction the most important thing.
A. knowing;is
B. to know; were
C. know; was
D. and know; are
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科目:高中地理 来源: 题型:
【题目】现有几组物质的熔点(℃)的数据:
A组 | B组 | C组 | D组 |
金刚石:3 550 | Li:181 | HF:-83 | NaCl:801 |
硅晶体:1 410 | Na:98 | HCl:-115 | KCl:776 |
硼晶体:2 300 | K:64 | HBr:-89 | RbCl:718 |
二氧化硅:1 723 | Rb:39 | HI:-51 | CsCl:645 |
据此回答下列问题:
(1)A组属于 晶体,其熔化时克服的微粒间的作用力是 。
(2)B组晶体共同的物理性质是 (填序号)。
①有金属光泽 ②导电性 ③导热性 ④延展性
(3)C组中HF熔点反常是由于 。
(4)D组晶体可能具有的性质是 (填序号)。
①硬度小 ②水溶液能导电 ③固体能导电 ④熔融状态能导电
(5)D组晶体的熔点由高到低的顺序为NaCl>KCl>RbCl>CsCl,其原因解释为 。
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科目:高中地理 来源: 题型:
【题目】书面表达
体裁 | 话题 |
提纲作文,电子邮件 | 邀请朋友加入校乒乓球队 |
(2017·新课标全国卷III)假定你是李华。你所在的校乒乓球队正在招收新队员。请给你的留学生朋友Eric写封邮件邀请他加入,内容包括:
1. 球队活动;
2. 报名方式及截止日期。
注意:
1. 词数100左右;
2. 可以适当增加细节,以使行文连贯。
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
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科目:高中地理 来源: 题型:
【题目】结合语境,根据汉语或首字母提示用单词的适当形式填空。
1. ________(事实上), China may have the largest number of English learners.
2. The little boy is just starting to talk; he has a________(词汇量)of about ten words.
3. Tom told me that he couldn’t speak Chinese very________(流利地).
4. Only time will tell whether Chinese English will develop its own________(特色).
5. The options were History and Geography. I chose the________(后者).
6. We________(逐渐地)get used to getting up early on winter mornings.
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科目:高中地理 来源: 题型:
【题目】对于下列物理量,按要求填空(填字母)
A.密度
B.米/秒
C.牛顿
D.加速度
E.质量
F.秒
G.米
H.长度
I.时间
J.千克
(1)属于物理量的是________________________。
(2)在国际单位制中,作为基本单位的物理量是____________。
(3)属于国际单位制中的基本单位的是__________,属于导出单位的是____________。
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科目:高中地理 来源: 题型:
【题目】语法填空
阅读下面短文,在空白处填入 1个适当的单词或括号内单词的正确形式。
In recent years many TV shows have become extremely popular among Chinese audience. Those programs, ranging from talent or dating shows to reality shows 1 (receive) both commercial success and public attention.
Their popularity is 2 (main) based on simple facts. First, they care 3 social concerns. Second, without exception, they explore a perfect balance between the international forms and Chinese expressions.
Despite apparent highlights, much room 4 (leave) for improvement. Above all, commercial interests often outweigh 5 (education) purposes, causing many complaints about the 6 (bearable) advertisements. In addition, some sharp remarks, 7 they are eye-catching, may have misleading effects on the youth.
In my opinion, such shows should shoulder more responsibility instead of merely 8 (entertain) the public. 9 is expected, these programs should be positive in their forms as well as functions. Meanwhile, the 10 (medium) should also safeguard the values of our society.
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科目:高中地理 来源: 题型:
【题目】单词拼写(每小题1分,满分10分)
结合语境,根据汉语或首字母提示用单词的适当形式填空。
1. Because he didn’t finish the work on time and was fired by company, he was very u__________ about it.
2. You should not i your mistakes if you want to make great progress.
3. She was praised for her c and brave action in the earthquake.
4. It’s going to be some time before I r from my knee injury.
5. Many Irish people s in America in the 19th century.
6. When learning English, it is quite important to develop the ability of___________ (交际).
7. The mother was (感激的) to the young man for his saving her girl from the river.
8. He offered a book to his friend Jim on (故意) to help him with his English.
9. After the terrible earthquake, the village was destroyed (全部地).
10. In winter some animals sleep in (松散的) snow, which helps to keep the cold out.
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