资源简介

沪教版（深圳）四年级下册 Unit 7 How do things change 单元阅读训练
一、主题：物质变化
Read and judge. Then correct the false statements.（阅读短文，思考因果关系并判断正误，在横线上更正错误的部分）
Hot springs
Hot springs are small lakes with hot water. In some hot springs, the hot rocks at the bottom of the spring heat the water. In others, the water heats up under ground.
When the water is very hot, some of it changes to steam. The water was a liquid, and now it's steam, a gas.
When hot steam meets warm air, we can't see a lot of steam. When hot steam meets very cold air, we can see a lot of steam.
Be careful in hot springs! The hot water and hot steam can be dangerous.
　1． 　　2． 　　3． 　
你想知道美味的煎饼(pancake)怎么做吗 这里有材料清单和制作步骤，跟着做很容易!阅读短文，选择正确的答案。
Pancakes are loved everywhere.People eat them for breakfast,with a cup of hot coffee to start the day.Do you like pancakes If you do,you can make them easily!Just follow these simple steps.
What Do We Need ①2 cups of flour ②1/2 teaspoon of salt(盐)③2 eggs ④1/4 cup of vegetable oil(植物油) ⑤1 cup of butter(黄油)
How Do We Make It 1. In a big bowl,stir(搅拌)the flour and salt, 2.Put the eggs and oil into the flour. 3.Heat a big pan over medium-heat(中火). 4.Put a large spoon of batter(面糊)onto the pan.Cook until the batter dries(变干). 5.Flip(翻转)the pancake.Cook until the other side turns brown.When both sides are light brown,it's ready!
4．What do we put into the flour first
A．Eggs and oil. B．Salt. C．Butter.
5．How much vegetable oil do we need
A．1 cup. B．1/2 teaspoon. C．1/4 cup.
6．What's the right order to make pancakes
①Put the eggs and oil into the flour. ②Cook the batter.
③Flip the pancake. ④Stir the flour and salt. ⑤Heat the pan.
A．④①⑤②③ B．④①③⑤② C．③④⑤①②
7．When is the pancake ready
A．When the batter dries.
B．When one side turns brown.
C．When both sides are light brown.
8．Where can we probably read this text
A．In a science book.
B．In a cookbook.
C．In an art book.
Mike的爸爸给孩子科普了一些生活中的小知识。阅读短文，判断句子正误。
When Mike and his family make ice cream，Dad puts salt and ice in the big bag.Mike asks，"Why？" Dad says，"It's science(科学)！"
Ice melts at 0℃.But when we add salt to ice，the salt lowers(降低) the freezing point of the ice.The ice around the bag gets even colder，maybe 10℃or lower！This super-cold ice mixture can take heat(热量) away from the cream mixture in the bag very quickly.So the cream mixture quickly freezes into ice cream.
We also use salt to speed up the melting of ice on roads in winter.
It makes the ice melt quickly so that cars can drive safely.Salt is very useful！
9．Salt makes ice melt at a higher temperature.
10．The ice and salt mixture can get colder than 0℃.
11．We also use salt to make ice on roads in winter.
12．The passage is about why salt is used when making ice cream.
答案解析部分
【答案】1．True；2．False. (We can't see a lot of steam.)；3．False. (We can see a lot of steam.)
【知识点】说明文；科普知识
【解析】【分析】文章大意：文章介绍了温泉中热水和蒸汽与不同温度相遇发生的变化。
【点评】此题考查阅读判断，首先要浏览短文，然后正确理解题意，从文中找到原句，判断两者内容是否一致，得出答案。
1．句意：原因：水非常热。结果：一些变成蒸汽。根据文中When the water is very hot, some of it changes to steam.可知，水很热时，一部分会变成蒸汽，原因和结果匹配，故答案为True。
2．句意：原因：热蒸汽遇到暖空气。结果：我们可以看见许多蒸汽。根据文中When hot steam meets warm air, we can't see a lot of steam.可知，当热蒸汽遇到暖空气时，我们不能看见许多蒸汽，原图与结果不相匹配，故答案为False .
3．句意：原因：热蒸汽遇到冷空气。结果：我们不能看见许多蒸汽。根据文中When hot steam meets very cold air, we can see a lot of steam.可知，热蒸汽遇到冷空气时，我们会看到许多的蒸汽，原因与结果不相匹配，故答案为False。
【答案】4．B
5．C
6．A
7．C
8．B
【知识点】饮食相关；介绍类语篇
【解析】【分析】文章大意：本文介绍了制作煎饼所需的食材以及具体制作步骤。
【点评】考查阅读理解，定位题干关键词，在原文定位对应语句，梳理步骤顺序匹配答案。
4．句意：我们首先把什么放进面粉里？A：鸡蛋和油；B：盐；C：黄油。根据文中In a big bowl,stir(搅拌)the flour and salt.可知首先将盐和面粉搅拌，故答案为B。
5．句意：我们需要多少植物油？A：1杯；B：二分之一茶匙；C：四分之一杯。根据文中④1/4 cup of vegetable oil(植物油)，可知需要四分之一杯植物油，故答案为C。
6．句意：制作煎饼的正确顺序是什么？①把鸡蛋和油放进面粉里；②煎面糊；③翻转煎饼；④搅拌面粉和盐；⑤热锅。根据文中制作步骤，顺序为④①⑤②③，故答案为A。
7．句意：煎饼什么时候做好？A：当面糊变干时；B：当一面变成棕色时；C：当两面都是浅棕色时。根据文中When both sides are light brown,it's ready!可知煎饼两面呈浅棕色时就做好了，故答案为C。
8．句意：我们可能在哪里读到这篇文章？A：在科学书上；B：在烹饪书上；C：在美术书上。根据文章介绍美食制作方法，可知出自烹饪书，故答案为B。
【答案】9．错误
10．正确
11．错误
12．错误
【知识点】科普知识；科普类语篇
【解析】【分析】短文普及了盐的用途。
【点评】本题主要考查细节理解。首先理解句意，其次根据题目关键信息判断句子正误。
9．句意：在高温里，盐可以使冰融化。根据But when we add salt to ice，the salt lowers(降低)the freezing point of the ice.（但是当我们往冰里加了盐，盐降低了冰的凝固点。）可知，盐降低了冰的凝固点，题干说"更高温度"错误。故答案为错误。
10．句意：冰盐混合物温度低于0℃。根据 The ice around the bag gets even colder，maybe 10℃ or lower！ （袋子周围的冰变得更冷了，可能10℃或者更低。）可知，冰盐混合物温度低于0℃，题干表述正确。故答案为正确。
11．句意：冬天我们用盐制作冰。根据We also use salt to speed up the melting of ice on roads in winter.（冬天，我们用盐来加速道路上冰的融化。）可知，盐是用来加速路面的冰的融化，不是"制作冰"，题干表述错误。故答案为错误。
12．句意：文章是关于当制作冰激凌的时候为什么使用盐。文章不仅讲了做冰淇淋用盐的原因，还提到了盐在融雪方面的用途，题干只概括了部分内容，表述不全面。故答案为错误。
1 / 1沪教版（深圳）四年级下册 Unit 7 How do things change 单元阅读训练
一、主题：物质变化
Read and judge. Then correct the false statements.（阅读短文，思考因果关系并判断正误，在横线上更正错误的部分）
Hot springs
Hot springs are small lakes with hot water. In some hot springs, the hot rocks at the bottom of the spring heat the water. In others, the water heats up under ground.
When the water is very hot, some of it changes to steam. The water was a liquid, and now it's steam, a gas.
When hot steam meets warm air, we can't see a lot of steam. When hot steam meets very cold air, we can see a lot of steam.
Be careful in hot springs! The hot water and hot steam can be dangerous.
　1． 　　2． 　　3． 　
【答案】1．True；2．False. (We can't see a lot of steam.)；3．False. (We can see a lot of steam.)
【知识点】说明文；科普知识
【解析】【分析】文章大意：文章介绍了温泉中热水和蒸汽与不同温度相遇发生的变化。
【点评】此题考查阅读判断，首先要浏览短文，然后正确理解题意，从文中找到原句，判断两者内容是否一致，得出答案。
1．句意：原因：水非常热。结果：一些变成蒸汽。根据文中When the water is very hot, some of it changes to steam.可知，水很热时，一部分会变成蒸汽，原因和结果匹配，故答案为True。
2．句意：原因：热蒸汽遇到暖空气。结果：我们可以看见许多蒸汽。根据文中When hot steam meets warm air, we can't see a lot of steam.可知，当热蒸汽遇到暖空气时，我们不能看见许多蒸汽，原图与结果不相匹配，故答案为False .
3．句意：原因：热蒸汽遇到冷空气。结果：我们不能看见许多蒸汽。根据文中When hot steam meets very cold air, we can see a lot of steam.可知，热蒸汽遇到冷空气时，我们会看到许多的蒸汽，原因与结果不相匹配，故答案为False。
你想知道美味的煎饼(pancake)怎么做吗 这里有材料清单和制作步骤，跟着做很容易!阅读短文，选择正确的答案。
Pancakes are loved everywhere.People eat them for breakfast,with a cup of hot coffee to start the day.Do you like pancakes If you do,you can make them easily!Just follow these simple steps.
What Do We Need ①2 cups of flour ②1/2 teaspoon of salt(盐)③2 eggs ④1/4 cup of vegetable oil(植物油) ⑤1 cup of butter(黄油)
How Do We Make It 1. In a big bowl,stir(搅拌)the flour and salt, 2.Put the eggs and oil into the flour. 3.Heat a big pan over medium-heat(中火). 4.Put a large spoon of batter(面糊)onto the pan.Cook until the batter dries(变干). 5.Flip(翻转)the pancake.Cook until the other side turns brown.When both sides are light brown,it's ready!
4．What do we put into the flour first
A．Eggs and oil. B．Salt. C．Butter.
5．How much vegetable oil do we need
A．1 cup. B．1/2 teaspoon. C．1/4 cup.
6．What's the right order to make pancakes
①Put the eggs and oil into the flour. ②Cook the batter.
③Flip the pancake. ④Stir the flour and salt. ⑤Heat the pan.
A．④①⑤②③ B．④①③⑤② C．③④⑤①②
7．When is the pancake ready
A．When the batter dries.
B．When one side turns brown.
C．When both sides are light brown.
8．Where can we probably read this text
A．In a science book.
B．In a cookbook.
C．In an art book.
【答案】4．B
5．C
6．A
7．C
8．B
【知识点】饮食相关；介绍类语篇
【解析】【分析】文章大意：本文介绍了制作煎饼所需的食材以及具体制作步骤。
【点评】考查阅读理解，定位题干关键词，在原文定位对应语句，梳理步骤顺序匹配答案。
4．句意：我们首先把什么放进面粉里？A：鸡蛋和油；B：盐；C：黄油。根据文中In a big bowl,stir(搅拌)the flour and salt.可知首先将盐和面粉搅拌，故答案为B。
5．句意：我们需要多少植物油？A：1杯；B：二分之一茶匙；C：四分之一杯。根据文中④1/4 cup of vegetable oil(植物油)，可知需要四分之一杯植物油，故答案为C。
6．句意：制作煎饼的正确顺序是什么？①把鸡蛋和油放进面粉里；②煎面糊；③翻转煎饼；④搅拌面粉和盐；⑤热锅。根据文中制作步骤，顺序为④①⑤②③，故答案为A。
7．句意：煎饼什么时候做好？A：当面糊变干时；B：当一面变成棕色时；C：当两面都是浅棕色时。根据文中When both sides are light brown,it's ready!可知煎饼两面呈浅棕色时就做好了，故答案为C。
8．句意：我们可能在哪里读到这篇文章？A：在科学书上；B：在烹饪书上；C：在美术书上。根据文章介绍美食制作方法，可知出自烹饪书，故答案为B。
Mike的爸爸给孩子科普了一些生活中的小知识。阅读短文，判断句子正误。
When Mike and his family make ice cream，Dad puts salt and ice in the big bag.Mike asks，"Why？" Dad says，"It's science(科学)！"
Ice melts at 0℃.But when we add salt to ice，the salt lowers(降低) the freezing point of the ice.The ice around the bag gets even colder，maybe 10℃or lower！This super-cold ice mixture can take heat(热量) away from the cream mixture in the bag very quickly.So the cream mixture quickly freezes into ice cream.
We also use salt to speed up the melting of ice on roads in winter.
It makes the ice melt quickly so that cars can drive safely.Salt is very useful！
9．Salt makes ice melt at a higher temperature.
10．The ice and salt mixture can get colder than 0℃.
11．We also use salt to make ice on roads in winter.
12．The passage is about why salt is used when making ice cream.
【答案】9．错误
10．正确
11．错误
12．错误
【知识点】科普知识；科普类语篇
【解析】【分析】短文普及了盐的用途。
【点评】本题主要考查细节理解。首先理解句意，其次根据题目关键信息判断句子正误。
9．句意：在高温里，盐可以使冰融化。根据But when we add salt to ice，the salt lowers(降低)the freezing point of the ice.（但是当我们往冰里加了盐，盐降低了冰的凝固点。）可知，盐降低了冰的凝固点，题干说"更高温度"错误。故答案为错误。
10．句意：冰盐混合物温度低于0℃。根据 The ice around the bag gets even colder，maybe 10℃ or lower！ （袋子周围的冰变得更冷了，可能10℃或者更低。）可知，冰盐混合物温度低于0℃，题干表述正确。故答案为正确。
11．句意：冬天我们用盐制作冰。根据We also use salt to speed up the melting of ice on roads in winter.（冬天，我们用盐来加速道路上冰的融化。）可知，盐是用来加速路面的冰的融化，不是"制作冰"，题干表述错误。故答案为错误。
12．句意：文章是关于当制作冰激凌的时候为什么使用盐。文章不仅讲了做冰淇淋用盐的原因，还提到了盐在融雪方面的用途，题干只概括了部分内容，表述不全面。故答案为错误。
1 / 1

展开更多......

收起↑