浙江省紹興市2009年高三教學質量調研檢測
數(shù)學試題(文科)
注意事項:
1.本科考試分試題卷和答題卷,考生須在答題卷上作答。答題前,請在答題卷的密封線內填寫學校、班級、學號、姓名;
2.本試卷分為第I卷(選擇題)和第II卷(非選擇題)兩部分,全卷滿分150分,考試時間120分鐘。
參考公式:
如果事件A、B互斥,那么 棱柱的體積公式
如果事件A、B相互獨立,那么 其中S表示棱柱的底面積,h表示棱柱的高
棱錐的體積公式
如果事件A在一次試驗中發(fā)生的概率是
P,那么n次獨立重復試驗中恰好發(fā)生k 其中S表示棱錐的底面積,h表示棱錐的高
次的概率 棱臺的體積公式
球的表面積公式 其中S1,S2分別表示棱臺的上、下底面積,h
表示棱臺的高
球的體積公式
其中R表示球的半徑
第Ⅰ卷(共50分)
2009年名校特級化學教師串講和押題
特殊試劑的存放和取用10例
1.Na、K:隔絕空氣;防氧化,保存在煤油中(或液態(tài)烷烴中),(Li用石蠟密封保存)。用鑷子取,玻片上切,濾紙吸煤油,剩余部分隨即放人煤油中。
2.白磷:保存在水中,防氧化,放冷暗處。鑷子取,并立即放入水中用長柄小刀切取,濾紙吸干水分。
3.液Br2:有毒易揮發(fā),盛于磨口的細口瓶中,并用水封。瓶蓋嚴密。
4.I2:易升華,且具有強烈刺激性氣味,應保存在用蠟封好的瓶中,放置低溫處。
5.濃HNO3,AgNO3:見光易分解,應保存在棕色瓶中,放在低溫避光處。
6.固體燒堿:易潮解,應用易于密封的干燥大口瓶保存。瓶口用橡膠塞塞嚴或用塑料蓋蓋緊。
7.NH3•H2O:易揮發(fā),應密封放低溫處。
8.C6H6、、C6H5―CH3、CH3CH2OH、CH3CH2OCH2CH3:易揮發(fā)、易燃,應密封存放低溫處,并遠離火源。
9.Fe2+鹽溶液、H2SO3及其鹽溶液、氫硫酸及其鹽溶液:因易被空氣氧化,不宜長期放置,應現(xiàn)用現(xiàn)配。
10.鹵水、石灰水、銀氨溶液、Cu(OH)2懸濁液等,都要隨配隨用,不能長時間放置。
蕪湖市2009屆高中畢業(yè)班模擬考試
數(shù)學試卷(文科)
本試卷分第I卷(選擇題)和第Ⅱ卷(非選擇題)兩部分,共150分考試時間120分鐘。
注意事項:
1.答卷前,考生務必用2B鉛筆和0.5毫米黑色簽字筆(中性筆)將姓名、準考證號、考試科目、試卷類型填涂在答題卡規(guī)定的位置上。
2.第I卷每小題選出答案后,用2B鉛筆把答題卡上對應的答案標號涂黑;如需改動,用橡皮擦干凈后,再選涂其他答案標號,答案不能答在試題卷上。
3.第Ⅱ卷必須用0.5毫米黑色簽字筆(中性筆)作答,答案必須寫在答題卡名題目指定區(qū)域內相應的位置,不能寫在試卷上;如需改動。先劃掉原來的答案,然后再寫上新的答案;不準使用涂改液、膠帶紙、修正帶,不按以上要求做答的答案無效。
4.參考公式:
第I卷(選擇題)
[注意事項]乙酸與乙醇的酯化反應
1.酯化反應是一個可逆反應。為了提高酯的產量,必須盡量使反應向有利于生成酯的方向進行。一般是使反應物酸和醇中的一種過量。在工業(yè)生產中,究竟使哪種過量為好,一般視原料是否易得。價格是否便宜以及是否容易回收等具體情況而定。在實驗室里一般采用乙醇過量的辦法。乙醇的質量分數(shù)要高,如能用無水乙醇代替質量分數(shù)為95%的乙醇效果會更好。催化作用使用的濃硫酸量很少,一般只要使硫酸的質量達到乙醇質量的3%就可完成催化作用,但為了能除去反應中生成的水,應使?jié)饬蛩岬挠昧吭偕远嘁恍?br>
但一般老師的體會是:最好使用冰醋酸(冬天是固體,夏天可能是液體)和無水乙醇。同時采用乙醇過量的辦法。只須加入2 滴濃硫酸,多了效果反而不好。
2.制備乙酸乙酯時,反應溫度不宜過高,保持在
3.使用無機鹽Na2CO3溶液吸收揮發(fā)出的乙酸。蒸餾出的乙酸乙酯中因混有乙酸和乙醇,故不能聞到明顯的酯的果香味。此時必須振蕩試管,使飽和碳酸鈉跟乙酸反應將其吸收,這樣既溶解了乙醇又降低酯的溶解性,讓酯浮在液面上便于聞其香味,觀察色、態(tài)。
Na2CO3溶液的作用是:
(1)乙酸乙酯在無機鹽Na2CO3溶液中的溶解度減小,容易分層析出。
(2)Na2CO3能跟揮發(fā)出的乙酸反應,生成沒有氣味的乙酸鈉,便于聞到乙酸乙酯的香味。
4.導氣管不要伸到Na2CO3溶液中去,防止由于加熱不均勻,造成Na2CO3溶液倒吸入加熱反應物的試管中。
5.該實驗也可以用中圓底燒瓶作反應物的容器,這時反應物的量要大一些。我的體會是可按書上裝置進行,所得乙酸乙酯量也不少,效果也明顯。一般是加熱沸騰,讓其反應,使乙酸乙酯蒸發(fā)出來。一般未加碎石,要出現(xiàn)暴沸。
[注意事項]乙醛的銀鏡反應
1.不能用久置起沉淀的乙醛。因為乙醛溶液久置后易發(fā)生聚合反應。在室溫和有少量硫酸存在時,能生成三聚乙醛;在
聚合后的乙醛可通過加酸、加熱來解聚。方法是:把乙醛聚合物收集起來,加少量硫酸并加熱蒸餾,餾出物用水吸收,即得乙醛溶液,這時就可用于乙醛特性反應的實驗了。
2.所用銀氨溶液必須隨用隨配,不可久置,不能貯存。因為溶液放置較久,會析出黑色的易爆炸的物質一氮化三銀沉淀(Ag3N),該物質哪怕是用玻璃棒刮擦也會引起其分解而爆炸。這一沉淀在干燥時受振動也會發(fā)生猛烈爆炸。
3.做銀鏡反應用的試管必須十分潔凈,這是實驗成功的一個關鍵。若試管不清潔,還原出來的銀大部分呈疏松顆粒狀析出,致使管壁上所附的銀層不均勻平整,結果就得不到明亮的銀鏡,而是一層不均勻的黑色銀粒子。為保證實驗效果,事先最好將試管依次用熱硝酸、10%的NaOH溶液洗滌后,再用蒸餾水沖洗干凈。(一般用熱堿液洗,自來水洗,蒸餾水洗即可。)用熱的NaOH溶液洗滌試管,可以除去試管中的油污,保證試管的清潔。
試管一定不能用洗液(重鉻酸鉀溶液用硫酸酸化)來洗,否則在做銀鏡反應實驗時會出現(xiàn)綠色溶液。因為重鉻酸鉀是強氧化劑,很容易氧化乙醛,而自身變成綠色的Cr3+的溶液。
4.銀氨溶液與滴入的乙醛混合均勻并溫熱時,不要再搖動試管。此時若搖動試管或試管不夠潔凈,生成的將是黑色疏松的銀沉淀(也算成功,但不美觀)而不是光亮的銀鏡。
5.做銀鏡反應的實驗時,AgNO3溶液的濃度不宜大小,以AgNO3的質量分數(shù)為2%~4%為宜。
6.制備銀氨溶液時不能加入過量的氨水。滴加氨水的量最好以最初產生的沉淀在剛好溶解與未完全溶解之間。這是因為,一方面銀氨溶液中如果有過量的NH3,銀離子會被過度地絡合,降低銀氨溶液的氧化能力;另一方面氨水過量會使試劑不太靈敏,且能生成在受熱或撞擊時會引起爆炸的物質。
有人建議,滴加氨水直到沉淀消失時,最后加一滴NaOH溶液。
在制備銀氨溶液時,一般用稀氨水而不用濃氨水。這是因為在配制銀氨溶液時,若氨水太濃,NH3容易過量,使Ag+過度地被絡合,降低銀氨溶液的氧化能力。
7.反應必須在水浴中進行加熱,不要用火焰直接加熱,否則有可能發(fā)生爆炸。在水浴加熱過程中,不要振蕩試管,也不要攪拌溶液,水浴溫度也不要過高(因乙醛沸點低),以
8.實驗后,試管中的反應混合液要及時處理,不可久置。實驗后,可用先加鹽酸后用水沖洗的辦法。附著在試管壁上的銀鏡可用硝酸溶液洗去,再用水沖洗。如果要保存銀鏡,應先處理試管內的混合液,然后用清水把試管壁上的液體沖洗干凈。
總的說來是;干凈、新制、適量、溫熱
廈門六中2008-2009學年高二下學期月考試卷
本試卷共10頁 滿分150分 考試時間 120分鐘
A卷(共95分)
(注:此部分選擇題答案要涂在答題卡上,否則無效)
I.聽力(共20小題,每小題1.5分,滿分30分)
第一節(jié):聽下面5 段對話。每段對話后有一個小題,從題中所給的A、B、C三個選項中選出最佳選項,每段對話僅讀一遍。
1. Why is the man wearing his sunglasses?
A. It’s sunny outside.
B. His eyes hurt in the light.
C. He looks cool with his sunglasses on
2. What will the woman probably do tonight?
A. Work.
B. Sleep at home.
C. Enjoy herself at a party.
3. When must the cameras be returned?
A By the next day.
B. Before 8 o’clock in the morning.
C. Before 8 o’clock in the evening.
4. What is Mary’s only hobby?
A. Staying in her room alone.
B. Tasting different kinds of food.
C. Reading something interesting.
5. What is the woman going to do tomorrow?
A. Stay at home.
B. See the doctor.
C. Leave the hospital.
第二節(jié): 請聽下面5段對話或獨白,選出最佳選項。每段對話或獨白讀兩遍。
請聽第6段段材料,回答第6至7題。
6. What did the speakers do last week?
A. They made a phone call.
B. The woman interviewed the man.
C. They had a dinner together.
7. What language can the man speak?
A. Spanish.
B. Japanese.
C. French.
聽第7段材料,回答第8至10題。
8. What is the man doing?
A. Making jiaozi.
B. Working on his website.
C. Talking to his friends on the internet.
9. Where do the man’s friends come from?
A. Canada. B. England. C. America
10. Where does the conversation most probably take place?
A. At home.
B. At an internet cafe.
C. At a restaurant.
聽第8段材料,回答第11至13題。
11. Why is the man tired?
A. He’s been bothered by someone.
B. He watched TV the whole night.
C. He has to give his bed to Susan’s brother.
12. What is the man’s attitude towards Susan’s brother?
A. He doesn't care.
B. He likes him very much.
C. He can’t stand him any more.
13. What do we know about Susan’s brother?
A. He eats a lot.
B. He lives with Susan.
C. He sleeps early.
請聽第9段段材料,回答第14至第16題
14. What course is the man studying at the college?
A. Medicine.
B. Basic programming.
C. Advanced programming.
15. How much money will the man pay for the club?
A. &10 B. &20 C. &30
16. Which club will the man probably join?
A. The Film Club.
B. The Tennis Club.
C. The Theatre Club.
請聽第10段材料,回答第17至20題
17. What can we learn from the news?
A. Nobody was killed.
B. 15 houses were badly damaged.
C. Over 200 people were made homeless.
18 How many people were badly injured?
A. 7. B. 9 C.10
19. What do we know about the farmer?
A. His house was destroyed.
B. One of his children was missing.
C. His wife was hurt by the falling walls.
20. What did the woman do when she saw her house shaking?
A. She tried to take something out.
B. She told her husband not to leave.
C. She rushed out with her children.
II.單選(共15小題,每小題1分,滿分15分)
21. ---Is Peter still teaching?
---I’m afraid not. He is said ___the school already as he has become an manager of a company.
A. to have left B. to leave
C. to have been left D. to be left
22. No one can prevent the plan __________ .
A. from carrying out B. to be carried out
C. being carried out D. to carry out
23----Do you mind if I keep pets in this building? ---__________.
A. I’d rather you didn't ,actually B. Of course not, it’s not allowed here
C. Great! I love pets D. No, you can’t
24.I'd also like to _____ you on your good work in these two years.
A. congratulate B. celebrate C. wish D. hope
25.I don’t know who invented _______ telephone, it’s really _______ most useful invention.
A. the; a B. the; the C. a; a D. 不填;不填
26.She heard a scream, _______ brought her heart into his mouth.
A. it B. this C. that D. which
27 ---Which one will I choose?
---Well, you can take _______ of them; I’ll keep none.
A. both B. all C. any D. either
28. He desired that he_______ the right to vote.
A. had B. have C. has D. had had
29. I shall not believe it until I see it_______ myself.
A. for B. by C. of D. in
30. ---Why are you smiling at me? --- You look _______ in that hat.
A.annoyed B. absurd C. talent D. beneficial
31. It was a time_______she felt sorry for herself and depressed..
A. then B. that C.when D. which
32. After the war, a post office building was put up ________ there had once been a shop.
A. that B. which C. where D. in which
33. -- Did you have a good time at the party?
-- Thanks. I appreciated _________ to your home.
A. to be invited B. being invited
C. to have invited D. having invited
34. _________ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
A. Being separated B. Having separated
C. Having been separated D. To be separated
35 . Nobody wants to___________ especially in public.
A. make fun of B. be made fun of C. making fun of D. be made fun
III. 完形填空(共20小題;每小題1. 5分,滿分30分)
閱讀下面短文,從短文后所給各題的四個選項(A、B、C和D)中,選出可以填入空白處的最佳選項,并在答題卡上將該項涂黑。
The Hymnbook(贊美詩集)
I
watched attentively as my little brother was caught in the act. He sat in the
corner of the living room, a (an)
My father picked up his treasured book, looked at it 40 , and then sat down without saying a word.Books were 41 to him; he was a clergyman(牧師)and the holder of several 42 . For him, books were knowledge, and yet, he loved his 43 .What he did in the next few minutes was remarkable. Instead of punishing my brother, instead of 44 or yelling or shouting, he sat down, took the pen from my brother’s hand and then wrote in the book himself, alongside the 45 John had made: “John’s word 1959, aged two. How many times have I looked into your 46 face and into your warm, black eyes looking up at me and thanked God for the one who has now scribbled in my new hymnbook. You have made the 47 sacred(神圣的)as your brothers and sisters give so much to my life.” Wow, I thought: This is the 48 my father is giving?
From
time to time I take a book down―not just a cheesy paperback(劣質的簡易平裝書) but a(n) 49
book that I know I will have for many years to come-and
I give it to one of my children to 50 or write their names in. And
as I look at their 51 , I think about my 52 , and how he taught me about what
really
36.A.pen B.eraser C.apple D.toy
37.A.noticed B.hoped C.sensed D.expected
38.A.interesting B.strange C.delicious D.wrong
39.A.proudly B.fearfully C.bravely D.terribly
40.A.interestingly B.sadly C.worried D.carefully
41.A.nothing B.expensive C.valueless D.precious
42.A.companies B.degrees C.churches D.children
43.A.children B.books C.hymnbook D.workers
44.A.praising B.killing C.injuring D.scolding
45.A.hymnbook B.toy C.scribbles D.words
46.A.angry B.gray C.beautiful D.eager
47.A.family B.company C.pen D.book
48.A.answer B.reply C.thanks D.punishment
49.A.real B.thick C.interesting D.false
50.A.read B.scribble C.tear D.destroy
51.A.book B.pen C.dream D.artwork
52.A.brother B.childhood C.father D.children
53.A.matters B.exists C.leaves D.lies
54.A.society B.country C.organization D.family
55.A.smile B.laugh C.fear D.relax
IV閱讀理解(共10小題;每小題2分,滿分20分)
閱讀下列短文,從每題所給的A、B、C、D四個選項中,選出最佳選項,并在答題卡上將該項涂黑。
A
Most shoplifters agree that the January sales offer wonderful opportunities for the hard-working thief. With the shops so crowded and the staff so busy, it does not require any extraordinary talent to help yourself to one or two little things and escape unnoticed. It is known, in the business, as “hoisting”.
But the hoisting game is not what it used to be, even at the height of the sales, shoplifters today never know if they are being watched by one of those evil little balls that hang from the ceilings of so many department stores above the most desirable goods.
As if that was not trouble enough for them, they can now be filmed at work and forced to attend a showing of their performance in court.
Selfridges was the first big
When the balls, called sputniks, first make an appearance in shops, it was widely believed that their only function was to frighten shoplifters. Their somewhat ridiculous appearance, the curious holes and red lights going on and off, certainly make the theory believable.
It did not take long, however, for serious shoplifters to start showing suitable respect. Soon after the equipment was in operation at Selfridges, store detective Chadwick was sitting in the control room watching a woman secretly putting bottles of perfume into her bag.
“As she turned to go,” Chadwick recalled, “she suddenly looked up at the ‘sputnik’ and stopped. She could not possibly have seen that the camera was trained on her because it is completely hidden, but she must have had a feeling that I was looking at her.”
“For a moment she paused, but then she returned to shelves and started putting everything back. When she had finished, she opened her bag towards the camera to show it was empty and hurried out of the store.”
56.The sputniks hanging from the ceiling are intended ________.
A.to watch the most desirable goods
B.to make films that can be used as evidence
C.to frighten shoplifters by their appearance
D.to be used as evidence against shoplifters
57.The case last October was important because _________.
A.the store got the dresses back
B.the equipment was able to frighten shoplifters
C.other shops found out about the equipment
D.the kind of evidence supplied was accepted
58. The woman’s action before leaving the store shows that she _______.
A.was sorry for what she had done
B.didn’t want to take what she had picked up
C.was afraid she would be arrested
D.wanted to prove she had not intended to steal anything
B
Babies are not just passing idle time when they stare goggle-eyed at the television―they are actually learning about the world,U.S. researchers said. Parents may want to limit what their babies see on television,based on the study,said Donna Mumme,assistant professor of psychology at Tufts University in Boston,who led the research. “Children as young as 12 months are making decisions based on the emotional reactions of adults around them,” Mumme said in a statement. “It turns out that they can also use emotional information they pick up from television. This means that adults might want to think twice before they speak in a loud and harsh voice or let a baby see television programs intended for an older person. ”Mumme’s team already knew that babies watch other children and adults for information about the world. A mother urging her baby to eat some “yummy” soup or a brother crying in fear when a dog approaches can influence a baby’s reaction. Mumme’s team tested babies to determine if television has the same influence,showing actors reacting on a videotape to objects such as red spiral letter holder,a blue bumpy ball,and a yellow garden hose attachment. Babies aged 10 months or 12 months were later given the same objects to play with. Ten-month-olds did not seem to be influenced by the videos,but the 1-year-olds were. When the actors acted neutrally or positively to an object,the babies happily played with them. But if the actor had seemed afraid or disgusted,the babies would avoid the object.
59.The underlined word may probably mean______.
A.unpleasant B.cruel C.noisy D.upset
60.Which of the following is Mumme’s conclusion??
A.Small babies should not be allowed to watch television programs.?
B.Adults need to think twice before they act in front of small babies.?
C.TV programs provide small babies with all the information they need. ?
D.One-year-olds can be emotionally influenced by TV programs.?
61. Which of the following may the study lead to according to the researchers??
A.Parents may want to limit what their babies see on television.?
B.Actors may try to behave themselves well in front of babies.?
C.Babies may be allowed to choose what they see on TV.?
D.Scientists may stop ignoring babies’ emotional world. ?
C
How Much to Tip
You’re out to dinner. The food is delicious and the service is fine. You decide to leave a big fat tip: Why? The answer may not be as simple as you think.
Tipping, psychologists have found, is not just about service. Instead, studies have shown that tipping can be affected by psychological reactions to a series of different factors from the waiter’s choice of words, to how they carry themselves while taking orders, to the bill’s total. Even how much waiters remind customers of themselves can determine how much change they pocket by the end of the night.
“Studies before have shown that mimicry(模仿) brings into positive feelings for the mimicker,” wrote Rick van Baren, a social psychology professor. “ These studies show that people who are being mimicked become more generous toward the person who mimics them.”
So Rick van Baren divided 59 waiters into two groups. He requested that half serve with a phrase such as, “Coming up!” Those in the other half were instructed to repeat the orders and preferences back to the customers. Rick van Baren then compared their-take-home. The results were clear---it pays to mimic your customer. The copycat waiters earned almost double the amount of tips to the other group.
Leonard Green and Joel Myerson,
psychologists at
“That’s also a point of tipping,” Green says, “You have to give a little extra to the cab driver for being there to pick you up and something to the waiter for being there to serve you. If they weren’t there, you’d never get any service. So part of the idea of a tip is for just being there.”
62. These studies show that______.
A.tipping can be affected by physical reactions to many different waiter’s factors
B.people who are being mimicked usually tip less to the person who mimics them
C.the mimic waiters can get almost twice as much money as the other group
D.mimicry makes the mimicker feel bad
63. We know from the passage that the writer seems to______.
A.object to Mr Green’s idea about tipping
B.think part of Mr Green’s explanation is reasonable
C.give his generous tip to waiters very often
D.support the opinions of Mr Green and Rick van Baren about tripping
D
Pets are no strangers to the White House. Many of American Presidents have been animal lovers. In recent times, White House pets have been tame dogs and cats. Long ago, however, presidential pets, like our nation itself, were wilder!
In 1806, President Thomas Jefferson lived in the White
House. Passers-by often caught sight of his pet bears. Explorers had discovered
these fierce bears, caught a pair of small ones, and sent them to
By 1825, the bears were long gone from the White House
scene. Now, the building was home to President John Quincy Adams and his
crocodile. The green beast actually belonged to General Lafayette, a French
hero who had helped the
When President Martin Van Buren moved into the White House in 1837, he brought his tigers with him. At first, Van Buren said the tigers were his. The Sultan of Oman had sent the tigers when Van Buren was elected, so Congress argued that the tigers belonged to the American people. A fight over the tigers continued for months. In the end, Congress sent someone to seize the tigers and put them in a zoo.
Twenty years later, President James Buchanan received another valuable gift when he was in his first year in the White House. This time, the King of Siam sent several elephants! Buchanan had no desire to share his building with the big creatures, so he sent them to the zoo. Buchanan did, however, keep another gift ?a pair of birds. They were a fitting symbol of presidential power.
64.What similar political
effect did
A.The pets made them happy and gay.
B.It took them too much time to look after them.
C.It brought about dissatisfaction with them in Congress.
D.It made people believe that they were animal lovers.
65. The passage mainly tells us _______.
A.The president’s bear garden B.Historical American presidents’ pets
C.The White House as a zoo D.American presidents’ favorites
B卷(共55分)
(注:此部分題的答案要寫在答題卷上,否則無效)
V.閱讀下面短文,根據(jù)以下要求:1.漢語提示;2.首字母提示; 3.語境提示,在每個空格中填入一個適當?shù)挠⒄Z單詞,并將該詞完整地寫在右邊相對應的橫線上。
(共10小題,每小題1分,滿分10分)
Once an American and a Frenchman decided to cross the
sea ______ France and England in a balloon in 1784. When they flew 1____________
high over the w______, they suddenly discovered a hole in the balloon. 2____________
What was _______(更糟糕),the hole became bigger and bigger. The 3____________
air keeping the baloon ______ was escaping quickly and the balloon was 4____________
coming down.. ______(看到) this, the two men threw all their equipment 5____________
away to make the balloon l_______. It started to rise higher again.But 6____________
soon it again was too close to the water.
Finally , the men had no choice ______ to throw away most 7____________
of their clothes to save t______. The crowd was very 8____________
_______(吃驚的) to see this when the balloon landed in front of them. 9____________
_____ eager they were to know what their story was! 10____________
VI選詞填空(共10小題,每小題1分,滿分10分)
根據(jù)所提供的語境,從方框中選擇正確的短語填空完成句子,其中兩個為多余項。
in the meantime,all in all,set aside,be scared to death,become aware of, junior to,
test out, take…seriously,leave… alone,as well as,out of the breath,all the best
1. When we climbed up to the top of the mountain, we were all ___________.
2. Once or twice he has had difficulty making decision on his own, but_____________ he is an independent man.
3.Let’s _______ our personal feelings for now, and get to our business.
4. She _______ when hearing the sound of explosion.
5. She _________ being followed by someone, so she began to walk more quickly.
6. You’d better _____your study _______, or you will feel sorry in the future.
7. He didn't mind _________ at home , for he knew his parents had to work to make money.
8. The work was difficult to do, __________ our patience.
9. He is ________ me by three years.
10. he had all his schoolwork to do,________ looking after his sick mother.
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