中科新闻网月经尾期是黑色:几道初一的题目
来源：百度文库 编辑：中科新闻网 时间：2024/04/18 22:23:17
1.（科学）老师在课堂上做了下列实验：把一只生鸡蛋放入清水中，鸡蛋沉入杯底，往清水中溶入大量的食盐，鸡蛋慢慢浮上水面．不用其他工具，你还能用另外的方法使烧杯的鸡蛋浮上水面吗？
2.（英语）用介词或副词填空
（1）The teacher isn't here.He's talking______the students.
（2）Let's play basketball ______ class.
3．（英语）从B栏中选出正确答案填入A栏
A
A:Hi,Lucy!___1___
B:Well,I live near my school,so I get up at a quarter to seven.I never go to school late.
A:Do you have breakfast at home?
B:Yes,___2___
A:When do you go to school?
B:___3___,so I go to school ai seven forty-five.
A:___4___
B:I leave school at five past five and ___5___
B
A.When do you play games?
B.I have lunch at school.
C.When do you ge home?
D.Whai time do you usually get up on weenkdays?
E.I usually have some cakes and a glass of milk.
F.Class begins ai eight o'clock
G.I get home at five-thirty
2.（英语）用介词或副词填空
（1）The teacher isn't here.He's talking______the students.
（2）Let's play basketball ______ class.
3．（英语）从B栏中选出正确答案填入A栏
A
A:Hi,Lucy!___1___
B:Well,I live near my school,so I get up at a quarter to seven.I never go to school late.
A:Do you have breakfast at home?
B:Yes,___2___
A:When do you go to school?
B:___3___,so I go to school ai seven forty-five.
A:___4___
B:I leave school at five past five and ___5___
B
A.When do you play games?
B.I have lunch at school.
C.When do you ge home?
D.Whai time do you usually get up on weenkdays?
E.I usually have some cakes and a glass of milk.
F.Class begins ai eight o'clock
G.I get home at five-thirty
1.加HCl，盐酸会和鸡蛋表面的碳酸钙反应，生成二氧化碳气体，附在鸡蛋表层，使鸡蛋上浮。
2.(1).among (2).after
3.D E F C G
加糖
to
after
D E F C G
1.加HCl，盐酸会和鸡蛋表面的碳酸钙反应，生成二氧化碳气体，附在鸡蛋表层，使鸡蛋上浮。
2.with after
3.D E F C G
3:D E F C G
加入能使水的密度增大的物质(如:硫酸），使水溶液的密度大于鸡蛋的密度就可以了！
to
after
DEFCG
1.加HCl，盐酸会和鸡蛋表面的碳酸钙反应，生成二氧化碳气体，附在鸡蛋表层，使鸡蛋上浮。
2.with after
3.D E F C G