2015年山東省七下《暑假生活指導(dǎo)》答案 完整版(2)
800+s/v=45
800-s/v=35 解得v=20 s=100
1. 解:1.設(shè)計(jì)劃新建校舍X平方米,則拆除校舍為7200-X平方米.
根據(jù)題意列出方程:
80%X+(1+10%)(7200-X)=7200
8X+11(7200-X)=72000
3X=79200-72000
X=2400
計(jì)劃拆除校舍:7200-X=7200-2400=4800(平方米)
答:計(jì)劃新建校舍和拆除校舍各為2400平方米和4800平方米.
2.
計(jì)劃新建校舍用的資金:700*2400=1680000(元)
計(jì)劃拆除校舍用的資金:80*4800=384000(元)
計(jì)劃在新建和拆除校舍中用的資金共:1680000+384000=2064000(元)
實(shí)際新建校舍用的資金:80%*2400*700=1344000(元)
實(shí)際拆除校舍用的資金:(1+10%)*4800*80=42240(元)
實(shí)際新建和拆除校舍用的資金共:1344000+4240=1386240(元)
節(jié)省的資金為:2064000-1386240=677760(元)
節(jié)省的資金用來綠化的面積:677760/200=3388.8(平方米)
答:在實(shí)際完成的拆建工程中,節(jié)余的資金用來綠化是3388.8平方米.
2. 解:設(shè)活動前Ⅰ型冰箱為x臺,則Ⅱ型冰箱為960-x臺
x(1+30%)+(960-x)(1+25%)=1228
解得x=560
?、裥捅?560臺
?、蛐捅洌?00臺
(2)Ⅰ型冰箱:560*(1+30%)=728臺
?、蛐捅洌?228-728=500臺
13%(728*2298+500*1999)
≈3.5*10五次方
3. 設(shè)要用8m的水管X根,5m的水管Y根
8X+5Y=132
因?yàn)?32-8X是5的倍數(shù),所以8X的尾數(shù)是2或7(尾數(shù)為7是單數(shù),不會是8的倍數(shù),不考慮尾數(shù)7)
所以X的尾數(shù)為4或9,且X≤132/8=16.5
所以X可選4;9;14三種,相對Y分別為20;12;4
即有3種方案: 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的單價50/8元/M<5m的單價35/7元/m
所以選8m管用得最多的方案最省錢,即選 8m的14根 5m的4根
1. 解
梨每個價:11÷9=12/9(文)
果每個價:4÷7=4/7(文)
果的個數(shù):
(12/9×1000-999)÷(12/9-4/7)=343(個)梨的個數(shù):1000-343=657(個)梨的總價:
12/9×657=803(文)
果的總價:
4/7×343=196(文)
解:設(shè)梨是X,果是Y
x+y=1000
11/9X+4/7Y=999
解得:X=657;Y=343
即梨是657個,錢是:657*11/9=803
果是343個,錢是:343*4/7=196
2.解:設(shè)樹上有x只,樹下有y只,則由已知的,得:
y-1/x+y=1/3
x-1/y+1=1
解得x=7;y=5
即樹上有7只,樹下有5只。
1. C
2. C
3. 120°
4. 解:∠AMG=∠3.
理由:∵∠1=∠2,
∴AB∥CD(內(nèi)錯角相等,兩直線平行).
∵∠3=∠4,
∴CD∥EF(內(nèi)錯角相等,兩直線平行).
∴AB∥EF(平行于同一條直線的兩直線平行).
∴∠AMG=∠5(兩直線平行,同位角相等).
又∠5=∠3,
∴∠AMG=∠3.
5. .(1)設(shè)隨身聽為x元,書包為y元,
x+y=452 x=4y-8 將2代入1得 4y-8+y=452,解之得y=92,x=360
(2)若在A買的話要花費(fèi)452*0.8=361.6(元)
若在B買要花費(fèi)360+(92-90)=362(元)
所以他在A,B兩個超市都可買,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.小紅的意思:同位角相等兩直線平行
小花的理由:內(nèi)錯角相等兩直線平行
另一組平行線:AB//CE 理由:∠ABC=∠ECD →AB//CE ( 同位角相等兩直線平行)
5.設(shè)2元x張,則5元58-20-7-x 張
2x+5(58-20-7-x)+20+10*7=200 x=15
2元15張,則5元16張
6. (1) SΔABC=SΔABP,SΔAPC=SΔBPC,SΔAOC=SΔBOP
(2) SΔABC=SΔABP, 同底等高的三角形面積相等
(3)連接EC,過點(diǎn)D作EC的平行線,平行線交CM于點(diǎn)F.
EF就是滿足要求的直路。
(3)理由
因?yàn)槠叫芯€與EC平行,所以點(diǎn)D到EC的距離【三角形ECD在邊EC上的高】=點(diǎn)F到EC的距離【三角形ECF在邊EC上的高】。
三角形ECD的面積=三角形ECF的面積。
所以,
五邊形ABCDE的面積 = 四邊形ABCE的面積 + 三角形ECD的面積
= 四邊形ABCE的面積 + 三角形ECF的面積.
因此,直路EF滿足要求。
有道理的,三多,都是99條,一少指3條(又指三個秀才),并且都是單數(shù)。這種題有多種分發(fā)。不過這種有一些含義,其他的只是做題。
英語
1.常見標(biāo)志
A 不準(zhǔn)停車 安全出口
肯德基 小心路滑
B No parking No smoking
No photos 不會
C No food
No music
2.廣告英語
1.I'm lovin'it(我就喜歡)——麥當(dāng)勞
2.Obey your thirst. (服從你的渴望。)——雪碧
3.We lead Others copy. (我們領(lǐng)先,他人仿效。)——理光復(fù)印機(jī)
4.The taste is great. (味道好極了。)——雀巢咖啡
5.Let's make things better. (讓我們做得更好。)——飛利浦電子
6.Good to the last drop. (滴滴香濃,意猶未盡。)——麥斯威爾咖啡
7.Feel the new space. (感受新境界。)——三星電子
8.Just do it. (只管去做。)——耐克運(yùn)動鞋
9.Focus on life. (瞄準(zhǔn)生活。)——奧林巴斯相機(jī)
10. We're the dot. in. com. (我們就是網(wǎng)絡(luò)。)——太陽微系統(tǒng)公司
廣告英語的語言特點(diǎn)簡單,明了 一般都是幾個字
3.動物與英語
pig dog cat
1.Love me,love my dog. .愛屋及烏
2.I wanted mother‘s present to be secret,but my sister let the cat out of the bag. .給媽媽的禮物我本想保密,但妹妹卻露出了馬腳
3.He was lake a cat in hot bricks before his driving test. 面臨駕駛考試,他急得像熱鍋上的螞蟻
4.The pian is a dead duck :there is no money. 計(jì)劃泡湯了,因?yàn)闆]有錢
5.My new car gose like a bird.It runs fairly well. 我的新車行駛自如,它跑得非常好。
6.You can taik till the cows come home;you'll never make me clange my mind. 你就算說出大天來,也休想改變我的主意
7.I smelt a rat when he strted being so helpful. 他主動幫忙,我懷疑里面另有文章
8.They lead a cat-and-dog life,so they decided to get separated. 他們老是吵架,所以決定分開
It’s not my pigeon 跟我沒關(guān)系
4.色彩與英語
a white night 不眠之夜
a white elephant 累贅之物/無用物品
a white crow 罕見的事物
the White House 白宮
a white lie 善意的謊言
white flag 投降
black sheep 敗家子
black tea 紅茶
black coffee 黑咖啡
black Dog 情緒低落
black gold 石油
green hand新手
green tea綠茶
blue day乏味的一天
blue collar藍(lán)領(lǐng)
blue fear極度的驚恐
I had a white night
(一)
1① basketball bookshop housework
?、趙riter helpful
?、踫hop 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 寫出三種用于比較的結(jié)構(gòu):
(1)原級比較用 as+原級+as. I have read books as many as you.
(2)兩者比較用: ....比較級+than. I have watched more films than you. So my listening is better than yours
(3)多者之間的比較常用: 比較級+than+any other+單數(shù)名詞/the other+復(fù)數(shù)名詞 Mary is more optimistic than any other student in our class.2. 不規(guī)則形容詞和副詞的比較級和最高級有
原級 比較級 最高級
good(好的)/well(健康的) better best
bad (壞的)/ 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 (遠(yuǎn)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. 儉以防匱。
From saving comes having. 富有來自節(jié)儉。
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. 金錢積少便成多。 Frugality is an estate alone. 節(jié)儉本身就是一宗財(cái)產(chǎn)。
(三)
1.just like a long lost friend(像分別很久的朋友)
2.it made me smile(它使我笑容滿面)
3.過去時態(tài)
4.①
,put . cut
Hit read
let beat
hurt cost
規(guī)律:都是不變化的 都是原型
②kept,slept, swept , ept
ep變pt
?、踭aught, caught,
rach atch 變aught
④brought, bought, thought,
變 ought
?、輇egan,drank, rang, sang, swam, sat,
i 改變a
⑥lent,sent,spent, built,
d 改 t
?、遱old, told,
ell 變?yōu)閛ld
?、鄐aid, pard,
變y為i 加d
?、醡et,fed
去掉E
⑩grew, knew,threw flew
變?yōu)?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閱讀短詩,找出詩中押韻的單詞:live,T.V,tea,me
2.整首詩用的主要時態(tài)是:現(xiàn)在進(jìn)行時 其中結(jié)構(gòu)是:V+ing
3.working buying visiting
規(guī)律:直接加ing
taking having driving
規(guī)律:去e加ing
stopping shopping getting
規(guī)律:雙寫輔音字母,再加ing
Lying
規(guī)律:變ie為y,再加ing
4.否定句 The boy is not playing basketball
一般疑問句 Is the boy playing basketball?
肯定回答 yes,he is
否定回答 No,he is not
對The boy 提問 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. 夏天的飛鳥,飛到我的窗前唱歌,又飛去了。
秋天的黃葉,它們沒有什么可唱,只嘆息一聲,飛落在那里。
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.
?、貳xcuse me.___Where are you from____________?
I'm from London.
?、贓xcuse 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.
?、躝_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.
?、轤___How is your friend______________________?
My friend is tall and he has long hair.
⑦_(dá)__What do you think of the TV programs_______________________?
The TV progams are boring.I don't love them.
?、郷___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)
經(jīng)典欣賞
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
閱讀欣賞
1.尼蒙的語言是所有Nemo后面的句子,
特點(diǎn)是:簡短,有力,表現(xiàn)了他急切的想上學(xué)的心情。
2馬琳的語言表現(xiàn)了他膽小,但愛孩子的性格特點(diǎn)。
