1.单选题- (共5题)
A.葡萄糖酸钙由四种原子构成 | B.葡萄糖酸钙的相对分子质量是430g |
C.一个葡萄糖酸钙分子中共有49个原子 | D.葡萄糖酸钙中钙元素的质量分数最高 |
A.候氏制碱法制得的“碱”是盐 |
B.工业用盐中的亚硝酸钠的化学式是NaN02 |
C.明矾[KAl(S04)2·l2H2O],是化合物 |
D.长期饮用纯净水.对青少年身体健康有利 |
2.选择题- (共11题)
— Look! The light in Mr. Brown's office is still on. He ___________ be working there.
— It ___________ be him. He has gone to America.
读短文,掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。
Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both 1 , plant a lot of trees. But this may not be the best way to make your home a 2 place.
Last week we visited a park in Hebei. We were 3 to find most of the trees had been burned. The workers told us that the trees 4 soon after they were planted because they weren’t watered well enough. 5workers burned them and cleaned the place for 6 trees to be planted this year. 7 a card found in one of the dead trees, a student wrote, "I hope this tree will grow up with me to 8 the backbone(栋梁) of our country."The workers said that the survival(存活) of the trees was really more important than 9 trees were planted.
Some people in Beijing now have a new idea that they can donate(捐赠) some money and let professionals (专业人士) plant and 10 the trees.
读短文,掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。
Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both 1 , plant a lot of trees. But this may not be the best way to make your home a 2 place.
Last week we visited a park in Hebei. We were 3 to find most of the trees had been burned. The workers told us that the trees 4 soon after they were planted because they weren’t watered well enough. 5workers burned them and cleaned the place for 6 trees to be planted this year. 7 a card found in one of the dead trees, a student wrote, "I hope this tree will grow up with me to 8 the backbone(栋梁) of our country."The workers said that the survival(存活) of the trees was really more important than 9 trees were planted.
Some people in Beijing now have a new idea that they can donate(捐赠) some money and let professionals (专业人士) plant and 10 the trees.
读短文,掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。
Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both 1 , plant a lot of trees. But this may not be the best way to make your home a 2 place.
Last week we visited a park in Hebei. We were 3 to find most of the trees had been burned. The workers told us that the trees 4 soon after they were planted because they weren’t watered well enough. 5workers burned them and cleaned the place for 6 trees to be planted this year. 7 a card found in one of the dead trees, a student wrote, "I hope this tree will grow up with me to 8 the backbone(栋梁) of our country."The workers said that the survival(存活) of the trees was really more important than 9 trees were planted.
Some people in Beijing now have a new idea that they can donate(捐赠) some money and let professionals (专业人士) plant and 10 the trees.
— Could you tell me ___________?
— Sorry, I don't know. I will call you when he comes back.
— Listen! Somebody is ___________ at the door.
— Don't answer the door! Mom doesn't let us do it while she is out.
阅读下面语言材料,然后按文后要求做题。根据材料内容选择最佳答案。
A
Four years ago when I was a boy of 11, I got into the biggest trouble as a kid. It was a Saturday morning. Both my parents were out, leaving me and my 10-month-old sister home alone. Anyway, my sister was still asleep in her room. In fact I had the house to myself. I decided to do some drawing. Soon I gave up. Nothing was on TV, so I felt bored and touched the candles on the shelf …I had an idea! What would happen if I set fire to some kitchen paper? Well, of course it went on fire, but it wasn't the tiny flame(火苗 ) I'd expected, and I couldn't blow it out. I threw it on the floor, and then luckily got my dad's boots(靴子) and stamped it out.
I thought I was safe until there was a huge hole in my room. When my mum came home later, she smelt the smoke immediately. She dropped the shopping bag, luckily for me, over the hole. I thought this meant she would never see it. However, after running round the house checking for a fire, she of course picked up the bag and saw the hole. Next I was grounded(关禁闭) and in trouble for months. Even worse, the hole was still there, reminding me of what I did.
阅读下面语言材料,然后按文后要求做题。根据材料内容选择最佳答案。
A
Four years ago when I was a boy of 11, I got into the biggest trouble as a kid. It was a Saturday morning. Both my parents were out, leaving me and my 10-month-old sister home alone. Anyway, my sister was still asleep in her room. In fact I had the house to myself. I decided to do some drawing. Soon I gave up. Nothing was on TV, so I felt bored and touched the candles on the shelf …I had an idea! What would happen if I set fire to some kitchen paper? Well, of course it went on fire, but it wasn't the tiny flame(火苗 ) I'd expected, and I couldn't blow it out. I threw it on the floor, and then luckily got my dad's boots(靴子) and stamped it out.
I thought I was safe until there was a huge hole in my room. When my mum came home later, she smelt the smoke immediately. She dropped the shopping bag, luckily for me, over the hole. I thought this meant she would never see it. However, after running round the house checking for a fire, she of course picked up the bag and saw the hole. Next I was grounded(关禁闭) and in trouble for months. Even worse, the hole was still there, reminding me of what I did.
3.填空题- (共3题)
4.实验题- (共2题)

①装置中a仪器的名称是 ,b仪器的名称是 ;
②实验室用于制取二氧化碳的发生装置和收集装置是 ,发生的化学反应方程式为 。
③利用②的装置还可以制取的气体是 ,发生的化学反应方程式为
。
①将草木灰溶于水,搅拌,静置。经处理后得到草木灰的浸取液,.取浸取液少许,滴入几滴无色酚酞试液,溶液呈现 色,从而知道草木灰浸取液显 (填“酸性、碱性、中性”);
②写出生石灰与水反应的化学方程式为 ;
③将②得到的产物与草木灰的浸取液混合,发生的化学反应方程式为
④将③反应后的混合物进行分离,此分离的方法叫 ,再将所得液体进行加热蒸发,就可制得氢氧化钾。能使
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【1】题量占比
单选题:(5道)
选择题:(11道)
填空题:(3道)
实验题:(2道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:2
5星难题:0
6星难题:6
7星难题:0
8星难题:2
9星难题:0