名字叫快乐暑假,封面是一个男的骑自行车

名字叫快乐暑假,封面是一个男的骑自行车

我只有这么多了
2010年八年级下学期《轻松快乐过暑假》数学科暑假作业答案(国标版)
练习一
BAABA B
=-0.5 =0.5
a-b -2 a^3-a^2b
19:13
60x^2 y^2
Y=x - a分之3
练习二
DCCDA
12
3.068×10^7
-3.48×10^-5
2
10
3 7
练习三
X≥1且≠2
(-1,2)
Y=12+2x
-2＜x＜-0.5
三
DCCCA
练习四
BBCCA A
y=x+5
-2
4
3
练习五
BDCBA
反 正
-5
5
-2＜x＜0 和 x＞1
y= -x分之1
练习六
CCDAD
BF=CF ∠B=∠C
3
120°
8cm
36°
练习七
ADCBB
∠ABC=∠DCB
3 △DCF≌△BAE △CFO△≌EAO △CDO≌△ABO
根号2
90°
AD 45°
练习八
CCCDB
对角线相等
对角线互相垂直
对角线互相垂直且相等
AD BC
平行四边形
AB=CD
练习九
CCABB
互相垂直平分 互相垂直 相等
正方 正方
AF=FD
练习十
90° 18° 252°
16 15.5
略
6 12 40
20 20% 71～80
CAACA
练习十一
2.83
7
2(x平均数) S^2
4.4
7 7 3 1.2 乙
BBCDD
练习十二
≠±1 2
-x^5 y分之1
（-1,6）
Y=-x分之1
x≥3且x≠-0.5
＞2 三
m＜3分之2
95°
10
12
3.16
10
67.5°
DBDBD BCCCB
练习十三
x^2 -4分之x^2+4x+9
2
-5
-7
Y=6x-2
二四 增大
1＜m＜2
有两个锐角互余的三角形是直角三角形 真
8
8
圆心角
6
6
AB=AC
ACDAB BB
练习十四 兔笨笨英语网
2
3.1×10^-4 4.56×10^4
(-2分之3, 2分之5 )
根号2
-a分之2b
X=2
根号2
107°
∠B=∠E
30cm
3
CDDAB DDC
练习十五
＞-2
x+y分之x^2 +y^2
85
-6
-3分之4 3分之5
m＜0.5
减小
3
26cm
40°
ADBAC CCCDC
练习十六
ACCCB 1或1.5
3分之5或 -1
-1或2
1 (-4)
2x^2 +5x+2 …….
2010年八年级下学期《轻松快乐过暑假》英语科暑假作业答案(国标版)
练习一
present;since;doctor;pollution;open;D;A;B;A;C;B;B;AD;B;
was taught;married;swim;came;have been;have lived;was.
练习二
changes;seen;in fact; marry; southern; had fun; won't until;
have been married; has kept; different from
A A D B D A B B
练习三
possible;service;althgough;attraction;present;have;since;
How many;When buy;Have carried;been;hasn't;sad;
去掉but;yet;next to;has been opened;any longer;
how to get;It's to read;It is came;but came;have known;
are fond of
练习四
CBACCB；not arrived;yet;How long;heard;Has ever been;
Has changed;yet;
I have lived here since I was born.
It's pleasant to play Chinese chess with my classmates.
Although Tom was ill,he went to school.
Where is Marry? She has gone to the cinema;
Have you been to Beijing?Yes I have.
I used to play computer games,now I don't do it.
练习五
a theme park;fast food;wave to us; get married;during the summer holiday;
move at high speed;feel excited; the whole day; go sight-seeing;
wait for an hour; stop taking photos; have gone to Shanghai;
have been to Shanghai; on the second day;careful;carefully;helpful;
helpfully;hopeful;hopefully;wonderful;wonderfully;noisy;noisily;healthy;
healthily;lucky;luckily;shiny;shinily;impolite;impossible;unkind;unpleasant;
cheerless;harmful;different;present;cross;lovely;present;pleasant;
of course;goback;performance;sailing;development;closing;
education;feeling;discussing;meaning
练习六
have seen;saw;were doing;was helping ;do; was watching; knocking;
were knocking; were making; didn't stop; to read; were dancing;
not to take; were clapping; was marching;
The souvenirs are so expensive that I can't buy it.
He is rich enough to travel around the world
What were you doing when he arrived?
Daniel was swimming in the lake at noon yesterday;
useless;delightful;as;frightened;Italy;happily;meaning;exciting;screamed
练习七
outside;morning;called;office;suprised;tickets;because;cinema;themselves;
taken;CBCADBACBD
练习八
has been away from Shanghai for two days.
can't stop taking photos with them because they look very cute.
have been in HongKong for a week
have gone to Hongkong twice
has gone to Hongkong
been away for two days
is quite different from that in Beijing
never forget the meaningful experience
did you come back from HongKong
arrived here the day before yesterday, I have been back for two days.
练习九
information;change;enjoy;screen;soon;short;repair;is designed by;e-dog for;
wasn't evening;has been for; important;used ;to go;sold;more;libraries;made;will replace;pleasure;to buy
练习十
ABBBDCDA
funny;printer;designed;looking;written;correctly;educational;knowledge;passed;
at the same time; come out;send e-mails;get a point;order a set on the Internet;
coulds with different colours;play a role;have a dream;many places of interest;
be sold out;search for information;a remote control; word-processing;
a ten-year-old boy;play a role of; fall asleep; be used widely;
double-click on the icon; What do you usually use the computer do
The computer is designed for students
Can I help you? I'd like to buy a personal computer
She will help you when necessary
练习十一
was left;is double-clicked;is produced;is put;to keep; BBBCA
练习十二
levels;character;uses;village;jump;goal;ask;knowledge;needs;
designed;written;starting;has worked;is caught;are marked;
typing;was broken;was lost;is made;is used;be clicked
下题 略
练习十三
searched for;wasn't found;so that can't take; was made to move;
has taught for ;some photos was for;
The words he said sounded exciting;
This kind of newspaper comes out once a day.
I played a role of a English teacher in my dream.
The new educational CD-ROMs are sold out.
The CD-ROM can be used to test your English vocabulary.
reading;who;richest;about;how;have;on;take;interested;lesson;treasure;
covered;set;vocabularies;producer.
练习十四
most exciting;months;donating;organization;duties;introducing;
decision;was held;to organize;to come;called;
Why don't you join; chose he to be the host of the charity show;
to work for the Project Hope; There is no time to wait ; at the right time;
must practise more; seemed to happen so quickly; advertise on the Internet;
make lots of noise; Spring Bud project
练习十五
because of the heavy rain;didn't start working; What was;
How did Ricky feel in the charity show; It is fun to
注 A:because B because of
ABABABAB
BFAGD
练习十六
B 去掉a; C to; C success; C because of; A hope to
BBCBACAABC
练习十七
voluntary; international;rest; advertisement; education; kindness;
operations; people; donations; collection
entrance;audience; seats;curtain;light; stage; microphone; performer;
clapped; exit cases of blindness; train the local doctors and nurses;
a flying eye hospital; keep on working; be grateful to sb;
perform operations; affect sixty per cent of students;
have some pocket money left; be proud to dosth.;
trat and cure eye problems;
be able to buy the medicine; get education; raise money for charities;
donate money to
练习十八
international charities; help poor people; take action to do sth.; mind others;
be in hosipital; voluntary doctors; pocket money; organize events to raise money;
set up UNICEF; spend money on
advertisement; operation; development; education; kindness; sickness; flying; teaching; organization; tratment;
BBADCCCBCCBCBADA
练习十九
BCADE;
charity; eye; cured; prevented; operated; operations; see; local; skills;
knowledge; support
It was started on 11 September,1961
It works to save the earth and its environment
Volunteers and donations.
To stop air pollution,protect the earth forests and save all plants and animals.
In China,it works to save the panda from dying out. In South America,
it works to save the Amazon Rainforest
ABCCA
练习二十
连线不太好发,省去吧
performing an operation; pocket money; operated on; medical tratment;
used to; were grateful to; Is used to; a flying eye hospital; had a big lunch;
cases of blindness; too weak to; used to get; isn't used to;
Did use to watch; used to be;
is used; isn't cheap enough
BCDAC BCABA CCBCA
练习二十一
agreement; gladness; collection; illness; prevention; advertisement;
development; decision; kindness; gentleness; sadness; sickness;
education; organizagtion; improvement; usefulness; movement; happiness;
has cured illness; poor areas for medical tratment; is performing operation on ;
proud have helped; you keep doing; grateful to because of donations;
used to drink; Used to; have lived am used to; used to live; are used to living;
operating; attacks; patient; improving; blind;care; indeed; education;
international; medical;
B be; C going; C blindness B not; A are; B drink
练习二十二 兔笨笨英语网
CBEADF
careless; the longest; itself; elderly; tree planting; unable; further; busier;
BBCBCCCBBD
练习二十三
join; tough; trail; aim; experience; happen; develop fund-raising
spirit; improve; excellent; violin; Februally; experience; especially;
record;singing; writing; is held ; join; to raise; has been built; to slove;
was singing; called; playing;
去掉it; 去掉been; across----cross; finished---been over;
because of; helping; drinks; drinking; bringing; but去掉
练习二十四
don't; will; It difficult to; more any other; How can help;
will be recorded; with; For;without; on ; in; of; By; to
It's wrong to look down on poor people.
It is a good season for us to enjoy the beautiful view.
It's necessary to be careful when you cross the road.
Don't miss the chance you should help each other;
It's important for children to have support from parents.
再问： 错了