1、啟航新課七年級(jí)上篇一:啟航新課堂七年級(jí)數(shù)學(xué)上冊 3 單元 t-ment啟航新課堂單元測試請支持正版第三章字母表示數(shù)（總分:_0 分;時(shí)間: 1_ 分）姓名學(xué)號(hào) 成績一.選擇題（每小題 3 分,共 30 分）1用代數(shù)式表示2m 與 5 的差為（ ）2m?5 5?2m 2(m?5)2(5?m) 2某商場_年的銷售利潤為 預(yù)計(jì)以后每年比上一年增長 b%,那么年該商場 的銷售利潤將是（ ）Aa?1?b? B a?1?b%? Ca?a?b%? _2 Da?ab23當(dāng)_?2 時(shí),代數(shù)式 2_?3 的值為（ ）1 ?1 34下列各組中的兩項(xiàng)不屬于同類項(xiàng)的是（ ）A3m2n3 和?m2n3_y 和 25_y5

2、1C1 和 4BDa2 和_3A3a?2b?5ab B5y?3y?2C7a?a?7a2 D3_2y?2y_2?_2y6化簡?0?(_?3y)?的結(jié)果是（ ）A_?3y B?_?3y C?_?3y D_?3y7一個(gè)長方形的周長 30,若長方形的一邊長為_,則此長方形的面積是（ ） _(_?_) _(30?2_) _(_?_)8若 a?b,b?2c,則 a?b?2c 等于（ ）03 ?3a9為了做一個(gè)試管架,在長為 acm(a?6cm)木板上鉆 個(gè)小孔（如圖）每個(gè)小孔的直徑為 2cm,則_等于（ ） a?3a?3cmcm 44a?6a?6cmcm 44 第 9 題圖_若代數(shù)式(m?2)_2?5y2

3、?3 的值與字母的取值無關(guān),則 m 的值是（ ）A2B2 C3D0二.填空題（每小題 3 分,共 30 分）_平方的 3 倍與?5 的差,用代數(shù)式表示為 ;當(dāng)_?1 時(shí),代數(shù)式的值為_正方體的棱長為 a,則它的表面積為 ;若 a?2cm,則表面積為 _某班 a 名同學(xué)參加植樹活動(dòng),其中男生 名(b?a)若只由男生完成,每人 需植樹_棵;若只由女生完成則每人需植樹 棵_一根鋼筋長 a 米,第一次用去了全長的第二次用去了余下的,則剩余 32 部分的長度為 米結(jié)果要化簡）_代數(shù)式 5m?2 的實(shí)際意義可表示為 1?_2_當(dāng)_?1 時(shí),代數(shù)式的值是 2(1?_) _合并同類項(xiàng):_?4_?_?;?p2?

4、p2?p2?_?6_?7y?3 的相反數(shù)是_代數(shù)式 a2?a?3 的值為 7,則代數(shù)式 2a2?2a?3 值為_用黑白兩種顏色正方形的紙片按黑色紙片數(shù)逐漸加 l 的規(guī)律拼成一列圖 案:（1）第 4 個(gè)圖案中有白色紙片張（2）第 n 個(gè)圖案中有白色紙片張三.解答題(共 40 分):_化簡（每小題 4 分,共_分）:2（1）?9y?6_2?3(y?_2); （2）5(a2b?3ab2)?2(a2b?7ab2); 3 _2?7_?(4_?3)?2_5a?a?(5a?2a)?2(a?3a)?）3_2?; （4） ? 35_ 分）先化簡,再求值:m?(m?1)?3(4?m),中 m?3 _23 分）根據(jù)

5、下列條件,分別求代數(shù)式 4(_?y)?5(_?y)?_(_?y)值: _?3,y?1;_?0,y?2;_?0.5,y?2.5;（2）觀察上述計(jì)算結(jié)果,請你給出一組_,y 的值,使得上述代數(shù)式的值與 （1）中的計(jì)算結(jié)果相同24初一年級(jí)學(xué)生在 名教師的帶領(lǐng)下去公園秋游,公園的門票為每人 30 元.現(xiàn)有兩種優(yōu)惠方案,甲方案:帶隊(duì)教師免費(fèi)學(xué)生按 8 折收費(fèi);方案:師生都 7.5 折收費(fèi).（1）若有 m 名學(xué)生,用代數(shù)式表示兩種優(yōu)惠方案各需多少元?（2）當(dāng) m?70 時(shí),采用哪種方案優(yōu)惠?（3）當(dāng) m?1_時(shí),采用哪種方案優(yōu)惠?篇二:啟航新課堂七年級(jí)下冊英語答案啟航新課堂七年級(jí)下冊英語答案單項(xiàng)選擇 BC

6、ABDBBBAACDABC 完形填空AADBCBADCB 閱讀理解 CDABA TFFFF 補(bǔ)全對話 This is Peter. Are you free this tomorrow? Are you free this Sunday? Yes,I d love to I ll call here 詞匯 speak carry flying cook afraid 漢譯英 This call about would have a picnic What up go fishing Section A 1.et3.free4.kite5.ring 1.to go2.shop

7、ping3.toke4.Are5.us tell him about the picnic2.Don t to you to fishing4.What do you thing of this green skirt5.Are you free this Sunday Section B 1.CDEAB 1.DDBAA FGCEB Section C 1.to have a picnic with2.very happy3.going fishing4.afraid no5.ask to call back Would like to visit 2.What would you 3. do

8、n t 4.Does 5.want to JBACEIDGHF Section D 1.calls2.shopping3.songs4.you5.having6.tell 1.Would 2.can3.can 4.May5.Would about cook 2.at home e 4.Who are 5.can t see any篇三:啟航新課堂七年級(jí)下冊英語試題啟航新課堂七年級(jí)下冊英語試題一）單項(xiàng)選擇1. Lets _ after school.A. to play basketball B. play basketball C. play a2. _ see the giraffes.A.

9、 Let B. Let we C. Lets3. - _ do you like animals?- _ they are cute. A. Why, Because B. Why, So C. What, Because4. Do you want _?A. eat rice B. to eat riceC. to eat rices5. A: Lets see the monkeys first.B: _?A: Because theyre interesting.A. WhyB. What C. Where6. _ these tigers _ from?A. Where, are B.

10、 Where, come C. Where are, /7. I like koalas because they are _ friendly.A. a kind of B. kind of C. kinds of8. Where is he _? South Africa.A. for B. fromC. like9. -_ he _ breakfast at home? - Yes.A. Dose, have B. Does, haveC. Does, has_. _ pandas from China?A. Are B. Is C. Do_.The elephants are_grea

11、t danger in Africa.A.are B.is C. does D.do_. I like_, but this afternoon I don like_. A.swimming;swimming B.to swim; to swimC.swimming; to swimD. to swim; swimming_.The trees are green. Dont_A. cut down them B. cut them upC. cut them dowm D. cut up them_. One of the boys_pet. The pet is really cute.

12、A. have B. has C. keep D. save(二)連詞成句.1. lions, the, let, first, see, us_.2. pandas, why, want, see, to, do, the, you_?3. they, are, ugly, because_.4. South Africa, lions, from, are, those_.（三）按要求完成句子1. I like monkeys because they are （就劃線部分提問 you like monkeys?2. us let pandas see. (連詞成句)_3. do you

13、tigers why like ? （連詞成句 ）_4. The koala comes from Australia.(否定句)The koala _ _ from Australia.5. He likes pandas very much.(變一般疑問句_ he _ pandas very much?6. The beautiful girl wants to see giraffes.(劃線部分提問) _ _ does the shy girl want to see?7. Pandas are from China.(同義句轉(zhuǎn)換Pandas _ _ China.（四）閱讀理解AThe

14、re is an elephant and a re friends, but one day theywant to know who is （更壯. One of says, Who can get apples over there, who is stronger.Theres there. I cant Elephant says, I can swim. Please sit on my They go across the river. The apple trees are very high. The elephant can reach（夠著the apples. The

15、monkey climbs（爬）up the tree and gets many apples.Now they know they should help each other.根據(jù)短文內(nèi)容選擇最佳答案()1.The elephant and the monkey want to know _.A.who is smarterB.who is higherC.who can swimD.who is stronger ()2._ cant swim.A.The elephantB.The monkeyC.The big animalsD.The small animals ()3._ ca

16、nt reach the apples.A.The elephantB.The monkeyC.The high animalsD.The short animals ()4.At last goes across river with of _. A.the elephantB.the monkeyC.an animalD.a boat()5.From the story we should _.A.learn from the elephantB.learn from the monkeyC.A and BD.help each otherBHandan from a in a middl

17、e school. She has four pen pals. They are from different countries like animal is the penguin. The penguin likes ice very much. Lily comes from Australia. animal. The And it sleeps the day, it up at Bob from India. His favorite animal is the elephant. Grass is the elephants favorite food. Tom is a C

18、anadian boy. He likes the tiger best. The tiger likes to eat meat. What is s favorite animal? It is the panda. Bamboo ispandas favorite.NameCountryFavorite animalWhat do the animals like?Handan1._Panda2._3._America4._ice5._Australiakoala6._TomCanada7._8._9._India_._grassCPeople come back to their ho

19、mes to spend the day with their parents or their children. On Christmas Day bells ring everywhere. The ringing bells tell sing and They have a good time.Most families buy a Christmas tree for their children. And there are some presents hanging(掛from the tree here and there. People also put presents in children s stockings. In many places, Father Christmas himself brings to is a kind man i