2015年山东省七下《暑假生活指导》答案 完整版(2)
800+s/v=45
800-s/v=35 解得v=20 s=100
1. 解:1.设计划新建校舍X平方米,则拆除校舍为7200-X平方米.
根据题意列出方程:
80%X+(1+10%)(7200-X)=7200
8X+11(7200-X)=72000
3X=79200-72000
X=2400
计划拆除校舍:7200-X=7200-2400=4800(平方米)
答:计划新建校舍和拆除校舍各为2400平方米和4800平方米.
2.
计划新建校舍用的资金:700*2400=1680000(元)
计划拆除校舍用的资金:80*4800=384000(元)
计划在新建和拆除校舍中用的资金共:1680000+384000=2064000(元)
实际新建校舍用的资金:80%*2400*700=1344000(元)
实际拆除校舍用的资金:(1+10%)*4800*80=42240(元)
实际新建和拆除校舍用的资金共:1344000+4240=1386240(元)
节省的资金为:2064000-1386240=677760(元)
节省的资金用来绿化的面积:677760/200=3388.8(平方米)
答:在实际完成的拆建工程中,节余的资金用来绿化是3388.8平方米.
2. 解：设活动前Ⅰ型冰箱为x台，则Ⅱ型冰箱为960-x台
x(1+30%)+(960-x)(1+25%)=1228
解得x=560
Ⅰ型冰箱:560台
Ⅱ型冰箱：400台
(2)Ⅰ型冰箱:560*(1+30%)=728台
Ⅱ型冰箱：1228-728=500台
13%(728*2298+500*1999)
≈3.5*10五次方
3. 设要用8m的水管X根，5m的水管Y根
8X+5Y=132
因为132-8X是5的倍数，所以8X的尾数是2或7(尾数为7是单数，不会是8的倍数，不考虑尾数7)
所以X的尾数为4或9，且X≤132/8=16.5
所以X可选4;9;14三种，相对Y分别为20;12;4
即有3种方案： 8m的4根 5m的2
8m的9根 5m的12根
8m的14根 5m的4根
因8m的单价50/8元/M<5m的单价35/7元/m
所以选8m管用得最多的方案最省钱，即选 8m的14根 5m的4根
1. 解
梨每个价：11÷9=12/9(文)
果每个价：4÷7=4/7(文)
果的个数：
(12/9×1000-999)÷(12/9-4/7)=343(个)梨的个数：1000-343=657(个)梨的总价：
12/9×657=803(文)
果的总价：
4/7×343=196(文)
解：设梨是X，果是Y
x+y=1000
11/9X+4/7Y=999
解得：X=657;Y=343
即梨是657个，钱是：657*11/9=803
果是343个，钱是：343*4/7=196
2.解：设树上有x只，树下有y只，则由已知的，得：
y-1/x+y=1/3
x-1/y+1=1
解得x=7;y=5
即树上有7只，树下有5只。
1. C
2. C
3. 120°
4. 解：∠AMG=∠3.
理由：∵∠1=∠2，
∴AB∥CD(内错角相等，两直线平行).
∵∠3=∠4，
∴CD∥EF(内错角相等，两直线平行).
∴AB∥EF(平行于同一条直线的两直线平行).
∴∠AMG=∠5(两直线平行，同位角相等).
又∠5=∠3，
∴∠AMG=∠3.
5. .(1)设随身听为x元，书包为y元,
x+y=452 x=4y-8 将2代入1得 4y-8+y=452，解之得y=92，x=360
(2)若在A买的话要花费452*0.8=361.6(元)
若在B买要花费360+(92-90)=362(元)
所以他在A,B两个超市都可买，但A更便宜
6. A4(16,3)
B4(32,0)
An((-2)^n,(-1)^n*3)
Bn((-2)^n*2,0)
1.A
2.C
3.A
4.小红的意思：同位角相等两直线平行
小花的理由：内错角相等两直线平行
另一组平行线：AB//CE 理由：∠ABC=∠ECD →AB//CE ( 同位角相等两直线平行)
5.设2元x张，则5元58-20-7-x 张
2x+5(58-20-7-x)+20+10*7=200 x=15
2元15张，则5元16张
6. (1) SΔABC=SΔABP，SΔAPC=SΔBPC，SΔAOC=SΔBOP
(2) SΔABC=SΔABP, 同底等高的三角形面积相等
(3)连接EC,过点D作EC的平行线，平行线交CM于点F.
EF就是满足要求的直路。
(3)理由
因为平行线与EC平行，所以点D到EC的距离【三角形ECD在边EC上的高】=点F到EC的距离【三角形ECF在边EC上的高】。
三角形ECD的面积=三角形ECF的面积。
所以，
五边形ABCDE的面积 = 四边形ABCE的面积 + 三角形ECD的面积
= 四边形ABCE的面积 + 三角形ECF的面积.
因此，直路EF满足要求。
有道理的，三多，都是99条，一少指3条(又指三个秀才)，并且都是单数。这种题有多种分发。不过这种有一些含义，其他的只是做题。
英语
1.常见标志
A 不准停车 安全出口
肯德基 小心路滑
B No parking No smoking
No photos 不会
C No food
No music
2.广告英语
1.I'm lovin'it(我就喜欢)——麦当劳
2.Obey your thirst. (服从你的渴望。)——雪碧
3.We lead Others copy. (我们领先，他人仿效。)——理光复印机
4.The taste is great. (味道好极了。)——雀巢咖啡
5.Let's make things better. (让我们做得更好。)——飞利浦电子
6.Good to the last drop. (滴滴香浓，意犹未尽。)——麦斯威尔咖啡
7.Feel the new space. (感受新境界。)——三星电子
8.Just do it. (只管去做。)——耐克运动鞋
9.Focus on life. (瞄准生活。)——奥林巴斯相机
10. We're the dot. in. com. (我们就是网络。)——太阳微系统公司
广告英语的语言特点简单，明了 一般都是几个字
3.动物与英语
pig dog cat
1.Love me,love my dog. .爱屋及乌
2.I wanted mother‘s present to be secret,but my sister let the cat out of the bag. .给妈妈的礼物我本想保密，但妹妹却露出了马脚
3.He was lake a cat in hot bricks before his driving test. 面临驾驶考试，他急得像热锅上的蚂蚁
4.The pian is a dead duck :there is no money. 计划泡汤了，因为没有钱
5.My new car gose like a bird.It runs fairly well. 我的新车行驶自如，它跑得非常好。
6.You can taik till the cows come home;you'll never make me clange my mind. 你就算说出大天来，也休想改变我的主意
7.I smelt a rat when he strted being so helpful. 他主动帮忙，我怀疑里面另有文章
8.They lead a cat-and-dog life,so they decided to get separated. 他们老是吵架，所以决定分开
It’s not my pigeon 跟我没关系
4.色彩与英语
a white night 不眠之夜
a white elephant 累赘之物/无用物品
a white crow 罕见的事物
the White House 白宫
a white lie 善意的谎言
white flag 投降
black sheep 败家子
black tea 红茶
black coffee 黑咖啡
black Dog 情绪低落
black gold 石油
green hand新手
green tea绿茶
blue day乏味的一天
blue collar蓝领
blue fear极度的惊恐
I had a white night
(一)
1① basketball bookshop housework
②writer helpful
③shop water land name
2. straight
tall always
market smart
have square
hair airport
meat clean
see beef week
bear pear
shirt sir
zoo cool
soap coat
tour house
cow
toy
story
curly nurse
back rock
that weather
fish fashion
dolphin elephant
where when
cheap beach
er：height erther
other-mother-another-brother
make-lake-take-bake-snake
rain-train-drainage
duck-luck-lucky-chuck
twin-win-sing-winner
end-tend-send-spend
wet-fet-set-pet-get-let
call-fall-tall-small-hall-ball
cold-told-fold-mold-sold
eat-meat-seat-east-feast
sea-tea-seat-plead-each
low-slow-flower-flow
cow-how-now-down
feet-meet-meeting-street
sweep-steep-sleep-weep
ill-will-till-hill-still
it-hit-sit-pit-git-dither
cat-pat-fat-mat-nat-that
ate-fate-gate-mate-skate
noon-moon-toon-spoon
an-man-tan-any-ant-many
yet-met-net-let-ret-ket
lay-may-lay-hay-say-stay
yard-gard-card-art-smart
dish-fish-wish-finish
top-atop-drop-pop
(二)
1.thicker better easisr
2 写出三种用于比较的结构：
(1)原级比较用 as+原级+as. I have read books as many as you.
(2)两者比较用: ....比较级+than. I have watched more films than you. So my listening is better than yours
(3)多者之间的比较常用: 比较级+than+any other+单数名词/the other+复数名词 Mary is more optimistic than any other student in our class.2. 不规则形容词和副词的比较级和最高级有
原级 比较级 最高级
good(好的)/well(健康的) better best
bad (坏的)/ ill(有病的) worse worst
old (老的) older/elder oldest/eldest
much/many(多的) more most
little(少的) less least
far (远的) farther/further farthest/furthest
4. .dearer
nearer
.better
more most
.far further
.least
Xinhua bookstore . because books in Xinhua bookstore are very cheap
5. Now I am on summer vocation ,and l will tell you something about my studies.My chinese and math was great .But my english was terrible ,my teacher said that i was lasy .So i should hard-working
6. Waste not,want not. 俭以防匮。
From saving comes having. 富有来自节俭。
A penny saved is a penny gained. 省一文是一文。
Take care of the pence and the pound will take care of themselves. 金钱积少便成多。 Frugality is an estate alone. 节俭本身就是一宗财产。
(三)
1.just like a long lost friend(像分别很久的朋友)
2.it made me smile(它使我笑容满面)
3.过去时态
4.①
,put . cut
Hit read
let beat
hurt cost
规律：都是不变化的 都是原型
②kept,slept, swept , ept
ep变pt
③taught, caught,
rach atch 变aught
④brought, bought, thought,
变 ought
⑤began,drank, rang, sang, swam, sat,
i 改变a
⑥lent,sent,spent, built,
d 改 t
⑦sold, told,
ell 变为old
⑧said, pard,
变y为i 加d
⑨met,fed
去掉E
⑩grew, knew,threw flew
变为 ew
fly flew;
ind found;
5.
Dear mum:
i am having a good time in london.i__got__(get) to the airport at about 12 o'clock last friday.i_ took_(take)a taxi to our language school and then i _went___(go)to my host family.in the afternoon i_did_(do)some shopping in downtown.then i_had_(have)my first dinner at about eight that evening.the food_was_(be)delicious and i liked it.
it_was_(be)Saturday yesterday.my teacher_took___(take)us sightseeing in the city.i_saw_(see)the Big ben and the Palace where the queen_lives_(live).I_bought__(buy)
some postcards in the shop.they are beautiful and i hope you_will love__(love)them.it _was_(be)late when we_got_(get)back to the host home.i_felt_(feel)tired but excited.i think i_have fallen__(fall)in love with the city. Your love
Daming
四
1阅读短诗，找出诗中押韵的单词:live,T.V,tea,me
2.整首诗用的主要时态是：现在进行时 其中结构是：V+ing
3.working buying visiting
规律：直接加ing
taking having driving
规律：去e加ing
stopping shopping getting
规律：双写辅音字母，再加ing
Lying
规律：变ie为y，再加ing
4.否定句 The boy is not playing basketball
一般疑问句 Is the boy playing basketball?
肯定回答 yes，he is
否定回答 No，he is not
对The boy 提问 Who is playing basketball?
2)She is opening the window
Who is cleaning the window?
She is’t closing the door now
I am doing my homework
They are singsing under the tree now
Are the Young Pioneers helping the old woman?
is swimming
No.5 is having/taking a shower
6. 夏天的飞鸟，飞到我的窗前唱歌，又飞去了。
秋天的黄叶，它们没有什么可唱，只叹息一声，飞落在那里。
Stray birds of summer come to my window to sing and fly away.
And yellow leaves of autumn, which have no songs, flutter and fall
there with a sign.
7.
got
is
doing
is writing
make
Is
doing
is lying
Tell
take
is watching
is taking
Keep
I have a happy summer vacation. I stay at home and go to the countryside during the summer vacation.
At home, I do my homework. I watch TV, too. I love English Today. Because I like English very much. I also like “Tell it like it is”. I watch them everyday. Sometimes I play the computer. I can watch MV and learn English on the computer. I often clean my room.
I live in the countryside with my grandpa and my grandma. They are both sixty years old. In the countryside, I can do many interesting thing there. I play with dog. The dog is cute. I like fishing with my fiends. I really feel happy living in the countryside.
1.
①Excuse me.___Where are you from____________?
I'm from London.
②Excuse me._____Is there a bank near here___________?
Yes.The bank is next to the city libray on Fifth Avenue.
③____Why do you like pandas_______________________?
Because they are cute.
④__What do you want to be when you grow up________________________?
I want to be an English teacher.
⑤____What are you reading_______________________?
I'm reading an English story books.
⑥____How is your friend______________________?
My friend is tall and he has long hair.
⑦___What do you think of the TV programs_______________________?
The TV progams are boring.I don't love them.
⑧____How is the weather now________________________?
It's raining hard.
3. Is it (very) warm today?
would you like to go with us?
I'd like to I can't go with you
it doesn't matter
When
All right /I agree (with you)
经典欣赏
1、He is sleeping.
2、He wants to go to school.
3、Because he wants to know whether Nemo is clear in his mind.
4、休息
阅读欣赏
1.尼蒙的语言是所有Nemo后面的句子，
特点是：简短，有力，表现了他急切的想上学的心情。
2马琳的语言表现了他胆小，但爱孩子的性格特点。