七年级寒假作业答案2015全科目在线看(7)
P66
1、 我的感受觉得很难受
2、 感受会比较好
3、 因为如果当初打掉我 就不会有我
二、
(1)世界人口寿命增长,导致世界人口猛增
(2)对于那些被打掉的孩子是不公平的
(3)如果用基因工程转基因会对人体有害
如果不用基因工程会有很多不便
(4)为什么基因工程对人有利有弊
P67
曼妥思糖含有一种叫做阿拉伯胶的化学物质,这种化学物质遇到含有碳酸盐成分的可乐后,让水分子的表面张力更易被突破,以惊人的速度释放二氧化碳。
P68
(1) 将老化,残旧,坏境恶劣
(2) 坚硬
(3) 有顽强的生命力
(4) 充满科学发明
(1) 不可信 不可信 不可信
(2) 吃出来的病怎么吃回去?
从来都没听说过
火星中没有大气
p49
4、 工人违规操作,焊接时火花四射引起
工程负责人表示
火花四射引燃某种易燃物所致
施工操作不符合规定,无疑是火灾导火索
火灾是由火花引燃易燃品
P70
因为保鲜膜上的水形似凸透镜,而通过凸透镜看的东西往往会大于原有形态
P41
(1) 不是艺术品
(2) 可以
(3) 真是漂亮的岩石
(4) 初次见到是艺术品,再次见到是艺术品
2、动物为了生存去适应环境,人类为了生存使环境更适应
一次一次的苦难,重复持续,变得更坚强独立
作弊被逮着=倒霉; 没逮着=运气; 逮不着=高手。。。。
P72
瓶子里的气压低于外界的气压,鸡蛋被外界气压压入瓶中。
P73
提高关税,以保护自己的商品。(背叛)
两方保持沉默(合作)
两人保持沉默
2、先辈将错误的科学假设留给后人去,从而对后人有帮助
3、多思考,多实验,多观察
4、大概语文书吧
P74
标题:神奇墨水
姓名:…
合作者:家长
指导老师:没有
时间:2011年1月20日
简介:…
器材:毛笔1支,打火机一个,糖水1杯,白纸一张
图表:无
实验设计:1、用毛笔蘸糖水在纸上写字或画画
2、晾干后,看字形或图案
3、用火烤后,变化怎样
陈述实验现象:火烤之后,有浅褐色的字形和图案
对实验进行分析:火烤之后,字形图案会因糖分脱水,而呈现浅褐色
结论或应用:无
参考文献:无
P75
火烤之后,字形、图案会因糖分脱水,而呈现浅褐色
历社
p76
1、第一个连最后一个
第二个连第三
三连七
四连四
另一边的第一个连第二个
二连六
三连一
四连五
2、政治 经济 管理 文化
p77
2 1
西南
1 大 2 小
4、5×4000000=20000000cm=200km
5、A:因为等高线越疏,坡度越缓
p79
亚洲 非洲 北美洲 南美洲 南极洲 欧洲 大洋洲
太平洋 印度洋 大西洋 北冰洋
2、盆地 山地 高原 丘陵 平原
3、伊朗 土耳其 西亚
朝鲜 日本 东亚
新加坡 越南 东南亚
印度 巴基斯坦 南亚
塔吉克斯坦 哈萨克斯坦 中亚
p80
4、直布罗陀海峡 地中海 苏伊士运河 印度洋 马六甲海峡 霍尔木兹海峡 太平洋
5、他的家乡是:温带海洋性气候
深圳:亚热带季风和季风性湿润气候
6、加拿大 中国 韩国 美国
p81
澳大利亚 英国
p82
× √××√××√××
2、上海 太原 广州 长沙 重庆 天津 长春 西宁西安
3、云南省最后一个 滇
广西 第三个 桂
广东 第二个 粤
湖北第一 鄂
p83
青海 龙羊峡大坝
三峡工程
p84
水稻 稻米
下游 河口 孟津 洞庭湖 中游 宜昌 湖口 西部大开发
p85
√×√××√√√
2、CADB
波斯湾 马六甲 霍尔木兹
新疆维吾尔自治区
坎儿井
支援较差的区域
P41 1、plane ,an abacus ,ships ,car,handcuffs,purse,ride bike,shoes,astronaut 2、one hundred and fifty-eight two thousand and one fourty five percents zero point twenty five six point zero three sixty degress six point fifty nine one thousand five hundred and seventy-one one sixth three fifths p42 (1)Spring Festival is also called the Chinese New Year,In thisday everyone wears clothes to celebrate the festival the famlies would get togther. (2)The Dragon boat day in on the fourth Thursday of November. On thisday in America and Canda,familiea get togther to celebrate the harvest 。They usually have a turkey for dinner. (3)On Lantern festival is one of the biggest holidays in China .Several days before Lantern festival ,people begin to make lanterns 。lanterns are make in the shape of different animals. (4)Mid-autumn festival is the day which the whole family teunites .the whole family may eat the moon cake togther ,enjoys looking at the moon brightly ,as soon as may also play the lantern。 p43 1、playing football ,wash,play the violin ,to make a phone call ,especially loudaly,go fishing 2、 (1)1.000,120,852 (2)15 79 17 27 (3)10分之3,5分之3,7分之3 9分之7 (4)50% 75% (5)25° 160° (6)0.78 11.45 21.13 57.22 6.5 P44 3、(1)it is called the Sun。 (2) It gives us heat and light (3)the moon is just 380.000km away (4)Because it is very far away (5)It takes four years for light to reach us from Alpha Centauri P45 1、左边 odd number even number equal 右边 plus/add minus/subtract divide times 2、Six oclock (2)eight oclock (3)play computer (4)do my homework (5)a lot of (6)Efforts to learn P46 I'd like to say i have nothing to show himself. but i would not lag behind, don't know why, i have no, not backward nor might this is the natural character, I like so many things with me to feel very well, the students are very lively I like their p47 was,were spoke cooked came knew gave swam heard got sent taught hurt left stole smelt took drove slept ran sat thought met kept brought bought flew began woke did chose cost lost found read threw rose stood wore p48 What is your favourite sports? A tourist steal a purse from a man They did catch the thief Our class 40 students consist of T aim his eye at the torch P49 横着的 (1)I attend listening the music every day I attend aconcert yesterday Iwill go shopping in threeday (2)He often explains to the guests products He explainad that he had been cheated two days ago He will to everyboby explains tomorrow (3)He often steal something I saw a thief steal something yesterday Tomorrow ,Do know will have the thief steal (4)He often invite his friend I invite my friend go shopping I will invite my families go shopping 2、twenty five Sixty 40 precent P50 To go south to the left until you get after Yi Tian Road to go straight and turn a corner and then go straight to the north to the concert hall. P51 He went to the reception He at the reception He from the reception out of She onto of the table On the table there is onething OnE thing that tipped off the ground Thing black in the car above Thing black belove in the car He stood in front of the car HE stood behind the car She between the two vehicles He into home He in home He out of from home Honest friendly hummorous Because thisfriend Would give people a pleasant sense is very easygoing P53 1、Clean up 2、put on new clothes 3、watching TV 4、Went out to play 5、chat with my friends Zebra Monkeys Elephants Lions Tigers The cafeteria The parrot house Entrance Bears Kangaroos 6、listhen music 7、Watching TV P54 3、Him in bed to see a thief in the next home, then he phone 110. the police and caught the thief. the police are thank him for his cooperation P55 A week in take a shower. in addition to friday and sunday other time in doing his homework on mondays, wednesdays friday, saturday and i play football, only on friday, saturday and sunday and i watch tv for a week, i don't go shopping, i have only on wednesdays and sundays go to bed very early 2、(1)mammals (2)afican elephont (3)white rginoceros (4)100 feet long (5)fifty (6)white rhinoceros 3、Hainan is a tourist resort. there areHainan Island is world-famous for its unique and charming tropical views, relaxed and happy natural environment, particularly magnificent marine resources and simple and kindhearted people