八年级暑假业.doc

八年级暑假作业：英语学习 英语学习（一）一、1、advice 2 to call up 3、to relax 4 successful 5 turn down 6 so that 二、1 compare with 2 borrowed return 3 gets well on with 4 didnt go until 5 left at home 三、1 even though 2 is used to 3 happy 4 as shy as 5 not as helpful as 四、1-5CACBB 6-9AAAA 五、1-5BCACC 6-10ABBAB 六、1-5EDAGB 七、1-5 BCBBA 英语学习（二）一、1 to go 2 the most exciting 3 to learn 4 raise 5 suggestions 6 myself 7 less 8 to choose 9 to book 10 slowly 二、 1What would do 2 didnt work 3 Do have anything 4 what should do 5 something wrong 三、1-5 BACCA 6-10ABAAC 四、1-5ACCBC 6-10BBBAA 五、EACBF 六 BACBC 英语学习（三）一、1was sleepy got 2 was cooking was washing 3 was sweeping left 4 were having came 5 was driving rained 6 was reading knocked 7 was working 8 was cooking rang 9 amazing 10 kidded 二、1took out some photos of Summar Palace 2 waiting tramped on his foot 3 on the foot of 2.5 clocks ride by riding bike 4 decided to take photos foe each other 三、1-5BABCA 6-10CBBBB 11-15ACCCB 四、1-5BBBAC 6-10BCACA 五CBDFE 六BCACB 英语学习（四）一、1 got married 2 wake up 3 as soon as 4 instead of 5 falls in love with 二、1nice is 2 What are made 3 where can buy 4 How 5 What wearing 三、1-5CABBC 6-10BACCB 四、1-5AAABC 6-10 BCCAA 五、CEABF 六、1-5ACABB 6-10ABCBC 英语学习（五）一、1the biggest bigger 2 more popular 3 interesting 4 the longest 5 trying 二、1the oldest countries 2 the longest river 3 As far as I know as big as 4 run into 5 a lot times than 6 in the future more than 7 fewer and fewer 三、1 Both and are 2 most finely three girls 3 Not only but also makes 4 taller than 5 older than younger than 四、1-5ACBAB 6-10BBCAB 五、EAFBD 六、1-5CAABC 6-10ACABC 七、1-5 ABCBA 6-10BCABA  数学暑假作业答案。 开通黄钻 数学天地一 1-5、CDAAC 6-10、CDBDC. 二、11.x≥-0.5且x≠1；12、2-√3 2-√3；13、-3；14、4.5； 15、（1）原式=4-（√48÷3+√12÷3）＝4-（4+2）＝-2 （2）原式=（√5）2-（√2）2－（3-2√6+2）=3-3+2√6-2=2√6-2 （3）原式=√x-√x=0. (4)原式=1.5ab√3a 16.原式==(x+1-2)2=(x-1)2 ∵ x-1=√3∴原式=(√3)2=3 17.由图可知、a为正数且大于1小于2.∴原式=a-1-(a-2)=1 18.原式=2／xy 将x=2，y=3代入得2／xy=2／2√3=√3／3 19.(1)根据勾股定理、C=√a2+b2=(2√3+1)2+(2√3-1)2=√26. (2).S△=?·(2√3+1)·(