七年级寒假作业答案2015全科目在线看(2)

2021-09-15 09:23:59 由蘇蘇2 1172分享

P30

直角平行垂直

BC CD+DE CD AB DE

AC BC CD CD 一点到一条直线上的垂线最短

D A 6 0.5 22.5 44°3′28〃

P31

6÷2=3 4÷2-2 3+2=5

60美元

15/75

P51-53

1、The boy went to the recepttion.

2、The boy is at the recepttion .

3 The boy is far from the recepttion.

4、The cat jumped onto the table.

5、The cat on the table

6、The cat fall off the table.

7、It is above the car.

8、It is below the car.

9、The boy is in front of the car.

10、The boy is behind the car.

11、The policeman is behind two cars.

12、The boy walks into the house.

13、The girl is in the house.

14、 The boy walks out of the house .

The most important qualities：helpful,friendly,kind

Reasons:I think make friends should care about each other,help each other.

Feb 1: to clean up the house and prepare for reunion dinner;

Feb 1 till mid night: to dine till 2359 hours for the new year;

Feb 2: get lucky money

Feb 2: to pay our senior member of the family visit and wish them a very prosperous new year;

Feb 3: To visit our relatives and friend for new year;

P54

走进大门的右侧是问讯处（formation desk）。鹦鹉馆紧挨着问讯处。如果需要饮料或想吃点东西，小吃部（cafeteria）就在鹦鹉馆的后面，所以有些嘈杂。狮虎山与鹦鹉馆相对，狮子在前，老虎在后。斑马在进大门左侧的第一个房子里。大象房正对着大门，而猴山则在挨着大象房的左角侧。袋鼠馆则在鹦鹉馆过去，紧挨着大象房的右角侧。最后，熊山在左侧的狮虎山和猴山之间。

P55

I always take a shower.

I do the homework very often

I often play football

sometimes I watch the TV

I never go shopping

I don't often go to bed early o sometimes I go to bed early

1/The largest mammals in the world.

2/weight

3/White Rhinoceeros

4/100 feet long

5/8000 pounds

6/White Rhinoceeros

In new year,my family want to travel，but every one have different ideas. so i look for many books,and i want go to beijin,because i think there is our capital city,i like the Great Wall and the imperial palace.and some food tastes delicious every year,a lot of visitors come to there. I think we have a good travel.

科学

科学的57页

1（1）把时空卷曲起来，使现在的A空间、过去（或未来）的B空间之间有一近路。

（2）1905年爱因斯坦的“狭义相对论”指出：光速无法超越，时间不可能倒流。

（1）可能：在未来，科技发达时期，也许有时间之旅的存在。

（2）不可能：也许由始至终，时间旅行根本不存在。

2（1）时间多少钱一千克？

（2）科学成绩有几光年？

（3）想象力穿什么衣服？

3（1）宇宙中有几颗星星？

（2）你爸的脑袋有几克？

（3）灰太狼是什么血型？