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试题答案

本文从以下几个角度介绍。

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4、长沙市第一中学2025届高考模拟考试(一)历史试题


6、长沙市第一中学2025届高考模拟考试(一)历史试题


A. put a bandage on it
B. drink some hot tea
C. take some medicine
D. go to bed early
6.—My sister has a stomachache. —______
A. That's too bad.
B. She should eat more.


When people are nervous, blood goes to the cheeks and they can have red cheeks. Liars usually raise their eyebrows (眉骨). They also blink (眨眼) a lot and close their eyes. Closing the eyes helps a liar to make up his or her story. When a person has a fake (假的) smile, his or her eyes don’t change. A real smile often makes the eyes become smaller. This is because more muscles are used when a person is happy.
Do animals have expressions Watch the dogs. When the owner blames (责怪) the dog for its mistakes, the dog shows a special expression. Many people think the dog feels sorry. The truth is it is sad about being blamed. When the horse shows its teeth, it looks like it is happy. But in fact, it feels that its body aches and needs a rest.
51. The number of muscles on human’s face is ________.
52. The expressions on our faces can ________ and ________ with others.
53. Nervous people have red cheeks because ________
54. A real smile needs ________ muscles than a fake smile.
55. When the horse needs a rest, it often ________.


4、长沙市第一中学2025届高考模拟 (一)数学答案


1、长沙市第一中学2025届高考模拟考试(一)历史答案


2、长沙市第一中学2025届高考模拟考试(一)物理答案


3、长沙市第一中学2025届高考模拟考试(一)地理答案


4、长沙市第一中学2025届高考模拟考试(一) 试题


4、长沙市第一中学2025届高考模拟考试(一) 答案


12.答案:(1)3;B
(2)50mL
(3)AB
解析:(1)小明应称取NaCl固体质量=50g×6%=3g,
在称量的过程中,发现托盘天平的指针向左偏转,说明NaCl固体质量多于3g,此时小明应该减少适量NaCl。综上所述:选择B。
(2)小明应称取NaC1固体质量=50g×6%=3g,所需蒸馏水的质量=50g-3g=47g,所需蒸馏水的体积=,所以取蒸馏水时,应选择接近47mL的量筒,故选择50mL的量筒。
(3)A、量取蒸馏水时仰视读数,实际量取蒸馏水体积偏大,所以所配溶液溶质质量分数偏小;A符合题意;


②向步骤①的试管内加入一定量的稀硫酸 铁锈逐渐溶解,溶液由无色变为______色一会儿后产生气泡最终溶液呈浅绿色
③当该试管内不再产生气泡时,取出铁钉,剩下溶液M,铁钉用蒸馏水洗净观察 铁钉表面呈银白色
写出步骤②中铁锈溶解的化学方程式: ______________。
【作出猜测】溶液M中的溶质是什么?小组的同学们提出了以下猜想。
猜想一:______________。
猜想二:只有。
猜想三:既有也有。


3、长沙市第一中学2025届高考模拟考试(一)化学答案