译林版英语九上 期中检测卷（一）（含答案）

这是一份译林版英语九上 期中检测卷（一）（含答案），共12页。试卷主要包含了听力选择，单项选择，完形填空，阅读理解，词汇应用，阅读填空，书面表达等内容，欢迎下载使用。

一、听力选择(满分15分)
A) 对话理解 (共5小题；每小题1分，满分5分)
听下面5段对话,从题中所给的A、B、C三个选项中选出最佳选项。读两遍。
1. Hw did Philip’s sister d n the exam?
A. Very badly.B. Very well.C. We dn’t knw.
2. Where are the speakers prbably?
A. In a bkshp.B. In a restaurant.C. In a classrm.
3. Where will the tw speakers g?
A. T the Star Shpping Mall.B. T neither f them.
C. T the Mnlight Shpping Mall.
4. What des Susan wear tday?
A. A red dress.B. An range dress.C. A yellw dress.
5. Hw lng des Tm spend n his hbbies nw?
A. Abut tw hurs.B. Abut an hur.C. Abut half an hur.
B) 对话理解 (共5小题；每小题1分，满分5分)
听下面2段长对话, 从题中所给的A、B、C三个选项中选出最佳选项。读两遍。
听第1段对话，回答第6~7小题。
6. When is Xia Hng’s birthday party?
A. This Friday.B. This Saturday.C. This Sunday.
7. Hw ld is Liu Qiang this year?
A. 13.B. 14.C. 15.
听第2段对话，回答第8~10小题。
8. What are the tw speakers talking abut?
A. The best persn fr the new mnitr.
B. The mnitr’s persnal qualities.
C. Their best friends and their persnal qualities.
9. Wh des David think is the best persn?
A. Wendy.B. Tm.C. Suzy.
10. What is Tm like?
A. Curius and clever. B. Generus and patient.C. Thughtful and fair.
C) 短文理解 (共5小题；每小题1分，满分5分)
听下面的短文，短文后有5小题，从题中所给的A、B、C三个选项中选出最佳选项。短文读两遍。
11. Hw many days did the speaker spend in Miami?
A. Furteen days.B. Ten days.C. Tw days.
12. Where did they enjy a wnderful sight f the wrld?
A. In the Science Museum.B. On the plane.C. Alng the beach.
13. What did they d in the mrning when the weather was nt t ht?
A. They used t g dancing in a disc.
B. They used t have breakfast utdrs.
C. They used t g sightseeing.
14. What can we learn abut the speaker and Jhn?
A. They didn’t like the beach at all.
B. They had a gd time n the beach.
C. They enjyed traveling in ht weather.
15. Which f the fllwing is NOT mentined(提到) in the passage?
A. Hw they felt when they had t leave.
B. What the weather was like every day.
C. What they bught in Miami.
二、单项选择(共15小题,每题1分，计1分，计15分)
从A 、B、C、D四个选项中,选出可以填入空白处的最佳选项。
16. It is very kind ____ yu t help me with my lessns because it is very difficult ____ me t learn them well.
A. f; frB. f; fC. fr; fD. fr; fr
17. Dn’t ____ t late, r yu will feel tired in class tmrrw.
A. wake upB. get upC. stand upD. stay up
18. — Hw much shuld I pay fr the fd, Sir?
— It csts ________. The fd is free n ur ship. _______ needs t pay fr it.
A. nthing; Nbdy B. nne; Anybdy C. n; N ne D. n ne; Nne
19. She wuld rather _________ at hme than _________ shpping with her mther.
A. t stay, ging B. stay, ging C. stay, g D. stays, g
20. — Dad, will yu spare time t take me t visit the Pyramids in Egypt?
— I ____________. When I cmplete the prject, I will realize yur dream.
A. rder B. accept C. refuse D. prmise
21. In sme freign cuntries, such as Canada, children usually leave their parents when they grw up. It makes the ld feel .
A. alne B. lnely C. frightened D. enjyable
22. Which f the verbs can’t be replaced(代替) by “get”?
A. take a bus B. becme angry C. cmplete hmewrk D. receive a letter
23. Peple _______ dark hair and dark skin lk gd _______ red and purple.
A. in, with B. with, in C. has, in D. with, n
24. My teacher ften encurages me that I shuld have curage ______questins in class.
A. t answer B. t reply C. t answer t D. reply t
25. Nbdy knew what had happened _______ they were tld abut it.
A. when B. thugh C. after D. until
26. — The ffice isn’t _______. Will yu please turn n the lights?
— Sure.
A. enugh brightB. brightly enugh C. enugh brightly D. bright enugh
27. —I saw yu cme t schl by bus this mrning.
—Oh, I _______ cme t schl by bus, but it is raining tday.
A. smetimes B. always C. hardly D. usually
28. —Which f these tw sprts sweaters will yu take?
—I’ll take _________. They lk nearly the same, and I just need ne.
A. bthB. either C. nneD. neither
29. —Fifty dllars fr such a T-shirt! Yu _______ be jking!
—I’m serius．It’s made f silk.
A．may B．need C． must D．can
30. — Thank yu fr helping me slve this prblem?
—__________. That’s what friends are fr.
A. My pleasure B. With pleasure
C. N, I shuld d that D. It’s nice f yu t say s
三、完形填空（共10小题；每小题1分，计10分）
阅读下列短文，从文后各题所给的四个选项中选出一个最佳答案。
Tw teachers were sitting in the teachers' rm. Fr a mment there was silence. Then ne f them, Miss Smith, said, "I'm afraid I'd have t fail him! I just can't let him 31 ."
"Nw Alice." said her friend, Mrs. Jacksn, "is he s terrible a student?"
"That's just the truble!" the ther wman answered, "Tm was nce my 32 student. The prblem is that he is s lazy that he never gets his wrk dne. He hasn't handed me a piece f hmewrk fr three 33 !"
Mrs. Jacksn had never seen Miss Smith s 34 befre. "Have yu had a wrd with him abut it?" she asked.
"Why shuld I? Every student must hand in hmewrk. I made 35 very clear n the first day fr class. I dn't knw what has happened. When the lessns started, he did s well that I 36 thught abut asking the schl t give him a schlarship(奖学金).But nw he ften sleeps in class! I've never seen such a 37 in a student." "Yu shuld have a talk with him. Give him a chance."
Miss Smith spke t Tm and learned all abut it. He was studying all day and wrking mst f the night in a factry t 38 fr his schling. Of curse he was 39 in class and smetimes culd hardly 40 awake. Miss Smith sn asked the schl t give him a schlarship and he was able t study carefully again
31. A. pass B. leave C. wrk D. sleep
32. A. laziest B. best C. wrst D. busiest
33. A. minutes B. hurs C. weeks D. years
34. A. wrried B. stressed C. useless D. kind
35. A. them B. him C. ne D. that
36. A. even B. nly C. mstly D. still
37. A. truble B. hpe C. change D. danger
38. A. pay B. call C. save D. share
39. A. frgetful B. careless C. asleep D. tired
40. A. seem B. keep C. lk D. get
四、阅读理解（每小题1分，计20分）
阅读下列材料，从每题所给的四个选项A、B、C、D中，选出最佳选项。
A
41. This nte was written by .
A. Jane Jhnes B. Jy Lee C. Alisn Lester D. Jhn Buchan
42. Jhn Buchan is .
A. due n 24th January B. a friend f Jy Lee’s
C. the writer f the nte D. the writer f Mr Standfast
43. Jy Lee shuld return the bk Imagine befre .
A. 22nd JanB. 24th JanC. 26th JanD. 3rd Feb
44. This is __________ .
A. a reprt B. a reminderC. an intrductin D. an advertisement
45. Frm this nte we DON’T knw that .
A. Jane Jhnes wrks in the library
B. Jy Lee may nt brrw any new bks nw
C. Jy Lee has lent these fur bks t ther students
D. Jane Jhnes asks the nte receiver t return the fur bks n Feb. 4th.
B
There are sme very gd things abut pen educatin. This way f teaching allws the students t grw as peple, and t develp their wn interests in many subjects. Open educatin allws students t be respnsible fr their wn educatin, as they are respnsible fr what they d in life. Sme students d badly in a traditinal classrm. The pen classrm may allw them t enjy learning. Sme students will be happier in an pen educatin schl. They will nt wrry abut grades r rules. Fr students wh wrry abut these things a lt, it is a gd idea t be in an pen classrm.
But many students will nt d well in an pen classrm. Fr sme students, there are t few rules. These students will d little in schl. They will nt make gd use f pen educatin. Because pen educatin is s different frm traditinal educatin, these students may have a prblem getting used t making s many chices. Fr many students it is imprtant t have sme rules in the classrm. They wrry abut the rules even when there are n rules. Even a few rules will help this kind f students. The last pint abut pen educatin is that sme traditinal teachers d nt like it. Many teachers d nt believe in pen educatin. Teachers wh want t have an pen classrm may have many prblems at their schls.
46. Open educatin allws the students t ______.
A. be late fr schl B. be respnsible fr their future
C. develp their wn interests D. discver subjects utside class
47. Open educatin may be a gd idea fr the students wh ______.
A. enjy traditinal learning B. wrry abut grades
C. d well in a traditinal classrm D. are respnsible fr what they d
48. The wrd “rule” in the passage means “______” in Chinese.
A. 惩罚 B. 考试 C. 学科 D. 规章
49. Sme students will d little in an pen classrm because ______.
A. there are t few rules B. they hate activities
C. pen educatin is meaningless D. they wrry abut the rules
50. Which f the fllwing is NOT mentined in the passage?
A. Sme traditinal teachers d nt like pen educatin.
B. Many teachers d nt believe in pen educatin.
C. Teachers may have prblems in pen classrms.
D. Teachers’ feeling and attitudes are imprtant t students.
C
51. Leave a nte n yur parents’ bedside table if ___________.
A. yur parents quarrel with each ther B. yu find it difficult t talk with them
C. yu want t be the best pssible child D. yu g utside t yur friend’s huse
52. Frm the abve we learn_________.
A. if we want t help d huse wrk, parents always refuse us.
B. yur parents will be hurt if yu get angry back at a wrng time.
C. parents ften grund children and cntrl their use f the telephne
D. if we want t discuss with parents, we shuld wait till they are happy
53. The underlined wrd “cmprmise” prbably means_________.
A. 抗争 B. 妥协 C. 承诺 D. 辩论
54. What’s the tpic f the article?
A. Hw t cperate with family and friends
B. Arguments between children and parents
C. Tips fr teenagers n family prblems
D. Advice n educating angry children
55. Yu cannt read the article _________.
A. in a magazine B. in a newspaper C. in a psterD. n the Internet
D
Kangkang is a ninth-grader at Qingtan Middle Schl in Changzhu. He gt back hme n March 1 after fur days ut. He ran away frm hme because he felt stressed ut abut the cming senir high schl entrance examinatin. A survey made in Shanghai shwed that 72 percent f students feel stressed and 67 percent f these students said their stress cmes frm schl grades.
Stress is a nrmal physical respnse(反应) t things that make peple feel wrried r disrupt (打乱) their lives in sme way.
Peple ften feel stressed when they take n a big jb, such as perfrming in a play, taking a test, r playing in a sprts match.
Sme stress is gd. It makes yu mre active. If yu have an imprtant test, stress can push yu t study harder.
But t much stress is unhealthy. It can make it hard t cncentrate. It can als make yu feel wrried and tired.
What is the best way t deal with stress? Chen Yifan is a student at Nanjing University f Technlgy. She passed the cllege entrance examinatin and has sme experience t share. “During the days when I was preparing fr the exams, I ften tk a walk and chatted with my classmates. We tld each ther ur wrries and this helped me t stay peaceful,” she said t Xinhua Daily newspaper.
Dctrs suggested that, besides sharing thughts with friends, students culd als relax by listening t music, reading a bk r just spending sme time alne.
56. Why did Kangkang leave hme fr fur days?
A. Because the air was nt fresh. B. Because he wanted t travel t anther city.
C. Because he felt stressed ut ver exams. D. Because he culdn’t fall asleep.
57. Which f the fllwing can make peple relax?
A. Taking n big jbs. B. Preparing fr the exams.
C. Spending sme time alne. D. Reading bks frm mrning till night.
58. Which f the fllwing is TRUE accrding t the passage?
A. Stress can always make peple mre active.
B. Mre than half f the students feel stressed at schl.
C. Brains will wrk better if peple let them wrk all the time.
D. Sharing thughts with friends will make yu get high schl grades.
59. What can we learn frm the stry?
A. We shuldn’t get rid f stress just because it is bad.
B. Students in Shanghai get stressed ut very easily.
C. T much stress makes peple active and study harder.
D. When peple’s lives are disrupted, they may feel stressed.
60. Which f the fllwing might be the best title fr this passage?
A. Hw t deal with stress B. Study hard t success
C. A survey f dealing with stress D. The ways t becme a tp student
第二卷（共50分）
五、词汇应用（共20小题；每小题1分，计20分）
A）根据句子意思和括号中的中文提示填空，每空一词。
61. The mid-term exam will be held ▲ (大约) the middle f Nvember this year.
62. Did yur teacher spend much time ▲ (解释) it t yu?
63. Yu can make a ▲ amng the beautiful dresses. (选择)
64. A girl’s favurite clur is ▲ . (粉红色)
65. The yung man didn’t tell us the ▲ . (真相)
B） 根据句意，用括号内所给单词的适当形式填空。
66. Thank yu fr ffering me s much ▲ (value) advice n hw t ask teachers.
67. We dn’t think this film is wrth ▲ (see) again.
68. I dn’t knw when ▲ (hld) the meeting. Please call me as sn as pssible.
69. Peter is imaginative enugh ▲ (cme) up with new ideas.
70. — I’ve decided t pull ut the tth. I can’t stand this pain.
— I’m afraid yu’ve made a wrng ▲ (decide). Yu’d better see the dentist and take his advice.
71. I invited Sally t my party, but she refused ▲ (accept) my invitatin.
72. If the walls f yur rm ▲ (paint) blue, yu’ll feel calm and peaceful.
73. —The petrl price has risen abve eight yuan. I’d prefer riding t ▲ (drive) frm nw n.
—Isn’t that gd news? Yu can d sme exercise n the way.
74. The ▲ (suggest) are f great value t us.
75. It’s ▲ (pssible) fr yu t pass this exam if yu dn’t keep a balance between study and play frm nw n.
C）根据对话内容，从下面方框中选择适当的单词填空，使对话内容完整正确。
why tired at a time rganized cnfident
Suzy: I’ve gt a prblem. I can’t sleep at night, and I feel very 76 in the mrning.
Sigmund: Lts f peple have that prblem. Are yu wrried abut smething?
Suzy: I think abut exams a lt. That’s 77 I can’t fall asleep.
Sigmund: Maybe if yu prepare a study plan, yu can rganize yur time better and feel mre 78 .
Suzy: Yu’re right. I’m nt 79 , and I ften have all my bks pen at the same time. I never knw which ne t read first.
Sigmund: I think yu’ll feel better if yu nly d ne thing 80 and set gals fr yurself. D yur best and try nt t wrry s much.
Suzy: OK, I’ll try.
六、阅读填空（共20空；每空1分，计20分）
A）阅读下列短文，根据短文中的信息完成文后表格。（每空一词）
The Chinese are very generus when it cmes t educating their children. Sme parents send their children t the best schls r even freign cuntries, fr example, England, the US r Australia althugh it csts much. Many als want their children t take after-schl activities. Their children either learn a musical instrument(乐器) r ballet, r ther classes that will give them a head start in life. The Chinese believe that the mre expensive an educatin is, the better it is, s parents ften spend a big amunt f mney n educatin. Even pr cuples buy a cmputer fr their sn r daughter.
Hwever, what mst parents fail t see is that the best educatin they can give their children is usually very cheap. Parents shuld knw their children’s varius skills. Children will usually be gd in sme areas while pr in thers. What mst parents fail t realize is that tday’s children lack(缺乏) cnfidence.
The prblem is that parents nly care abut their children n hw t achieve high marks in exams. They are nt teaching children the mst imprtant skills that can be helpful t their grwth. These skills als can build their cnfidence.
Parents can help achieve this by teaching their children practical skills like cking, cleaning and ther husewrk.
Teaching a child t ck will imprve many f the skills that he will need later in life. Cking requires patience and time. It is a pleasant but difficult experience. A gd ck always tries t imprve his cking, s he will learn t wrk hard and successfully finish his jb step by step. The result, a well-cked dinner, will give a child a lt f satisfactin and cnfidence.
An ld machine such as a brken radi r TV set that yu give yur child as a ty may make him curius. If he spends hurs lking at it and trying t repair it，yur child might becme an engineer when he grws up. It’s better t d such activities than teach a child t read a bk. These activities can teach them t think, and t use their minds.
B）根据首字母和短文内容，在空格内填上合适的词。
Carrts are grwn n farms and in small family gardens all ver the wrld. It is ne f the mst ppular sweet v 91 . When peple think abut the carrts, they usually think they are a kind f lng, thin, range-clred vegetable w 92 a gd taste. In fact, carrts are in many different sizes and s 93 . And nt all carrts are range.
Carrts shuld be grwn in a field that desn’t hld w 94 fr a lng time. That is t say, the field shuld nt be t wet. T prepare yur carrt garden, dig up the earth and turn it ver. Weather, sil cnditin, and time a 95 the way that carrts taste. Warm days and cl nights are the b 96 time t grw great tasty carrts. The quickest way t knw if a carrt is ready t be harvested(收获) is t see its clr. Usually, the brighter the clr is, the better the taste is. Many peple d nt knw that carrts can be grwn d 97 the winter mnths. If the winter is nt cld enugh, yu can grw carrts the same way as yu d in s 98 .
Carrts are prepared and eaten in many different ways. They are cut in thin p 99 and cked with ther vegetables r meat. Or they are washed and eaten just as they cme ut f the g 100 . If yu dn’t eat them at nce, they can als be stred in the refrigeratr fr up t a mnth.
七、书面表达：(10分)
请结合电子邮件内容，以笔友Emily的身份给Li Hng回封80词左右的E-mail（所给提示词汇不计入总字数，不得出现真实的人名、学校等相关信息）
Dear Emily,
I’m s sad. As yu knw, I’m very fat. My classmates ften laugh at me especially when I have PE lessns. What’s wrse, Nw I am a Grade 9 students. I have gt mre and mre hmewrk s that I have n time fr hbbies. I feel much t tired. I can’t even sleep the night befre I take a big exam. What shuld I d? I hpe yu can help me.
Best wishes!
Yurs sincerely,
Li Hng
Dear Li Hng,
Thank yu fr yur letter. ▲
▲
I hpe what I said can help yu.
Best wishes
Emily
听力材料
A) 对话理解
听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。每段对话读两遍。
1. W: Hw did yur sister d n her exam, Philip?
M: Very well. She came first.
2. W: What can I d fr yu?
M: D yu have any bks abut clurs and mds?
W: Yes. This way, please.
3. M: Hi, Lucy. Shall we g t the Star Shpping Mall tday?
W: Well, I’d rather g t the Mnlight Shpping Mall. It’s better.
M: OK. Let’s g.
4. M: D yu knw the girl?
W: Which girl? The ne in the red dress?
M: N, the ne in range.
W: Oh, that’s my cusin, Susan.
5. W: Tm, hw lng d yu spend n yur hbbies?
M: I used t spend abut 2 hurs, but nw abut half an hur. I’ve gt t much wrk t d.
B) 对话理解
听下面2段长对话。每段对话后有2到3个小题，从题中所给的A、B、C三个选项中选出最佳选项。每段对话读两遍。
听第1段对话，回答第6-7小题。
M:Hell, Xia Hng.
W:Hell, Liu Qiang. Wuld yu like t cme t my birthday party this Saturday?
M:This Saturday? N prblem, I’d like t. Which year were yu brn in?
W:I’m 14, and I was brn in 1993. That year was under the cck.
M:Oh, mine is the mnkey. I’m ne year lder than yu.
听第2段对话，回答第8-10小题。
W: Wh d yu want t recmmend t be the new mnitr, David?
M: I think Suzy is the best persn.
W: Why?
M: Because she is thughtful and fair. She ften plans things well and mst students like her. What abut yu, Wendy?
W: I think Tm is suitable.
M: Why?
W: Because he is generus and patient.
C) 短文理解
听下面的短文，短文后有5小题，从题中所给的A、B、C三个选项中选出最佳选项。短文读两遍。
Last summer, I went t Miami, Flrida where I stayed fr tw weeks. My friend Jhn and I flew t Miami frm New Yrk in three hurs. It was the first time fr bth f us t travel by air. We sat in deep armchairs and enjyed the unusual sight f the wrld. We stayed at a htel n the beach. We slept late every mrning and then had breakfast utdrs. When the weather was nt ht, we used t g sight-seeing in the mrning. We visited the science museum. In the afternn, we used t g swimming, lie in the sun r g water-skiing. After dinner in the evening, we used t g dancing in the disc. The weather was very gd every day and the time went by nly t quickly. We were bth very srry when we had t leave.

参考答案
一、1——5 BACBC 6—10 BCACB11—15 ABCBC
二、16—20 ADACD 21—25 BCBAD 26—30 DCBCA
三、31—35 ABCAD 36—40 ACADB
四、41—45 ADCBC 46—50 CBDAD 51—55 BBBCC 56—60 CCBDA
五、61. arund 62. explaining 63. chice 64. pink 65. truth
66. valuable 67. seeing 68. t hld 69. t cme 70. decisin
71. t accept 72. are painted 73. driving 74. suggestins 75. impssible
76. tired 77. why 78. cnfident 79. rganized 80. at a time
六、81. educate 82. generus 83. abrad 84. give 85. mney
86. Bad 87. Cking 88. Fixing/ Mending/ Repairing 89. Making 90. minds
91. vegetables 92. with 93. shapes 94. water 95. affect
96. best 97. during 98. summer 99. pieces 100. grund
七、书面表达
Dear Li Hng,
Thank yu fr yur letter. It seems that yu are suffering frm stress. First, pay n attentin t the students wh laugh at yu. Try t think abut the things yu are gd at. Next, Ding mre exercise is gd fr yur health and it can help yu becme strnger s that yu can have enugh energy t d mre things. Then, it’s better t make a list f the hmewrk yu have t d and wrk ut hw much time yu need t spend n it. And yu’ll knw hw much time yu will have fr yur hbbies. Finally, listen carefully and ften revise fr tests, and yu will becme mre cnfident in the exams.
I hpe what I said can help yu.
Best wishes
Emily
Schl Library
T Jy Lee,
Just t remind yu that yu have fur verdue bks.
Title Writer
① The age f Inncence Edith Whartn due (到期) 22/Jan
② Mr Standfast Jhn Buchan due 24/Jan
③ Imagine Alisn Lester due 26/Jan
④ Selected Tales Jakb and Wilhelm Grimm due 26/Jan
Please return these bks tmrrw. Other peple may be waiting t brrw them.
Jane Jhnes
Librarian
Date: 3/Feb/2013
Nte: Yu may nt brrw any new bks until these bks have been returned.
※When parents get angry, it isn't the time t get angry back. A lt f times they're nt upset with yu, but with their bss, the neighbr, r the price f vegetables. Yu just happen t be there at the wrng time. Lk hurt? Get ut f the way when they're in a bad md. They need sme time and space. G utside, t a friend's huse, r t yur rm. At last they will becme calm and miss yu.
※If yu have truble talking t yur parents, r if they get angry every time yu try t discuss smething, write a nte. Put it n their bedside table. Parents are easily mved by ntes like this and will prbably keep them frever.
※D nt create situatins where there is a winner and a lser. Yu're the child and will prbably lse mst f the time. Hw many times have yu been grunded(困在家中) by yur mther r taken away the phne privileges(特权) frm yur dad? Try t cmprmise with each ther and wrk ut a situatin where bth f yu win.
※Ask yur parents nce a day, "Is there anything I can d fr yu?" Mst f the time they will prbably say n, r give yu smething that will take a few minutes t cmplete. Yur parents will lve this and see yu as a very cperative(可合作的) persn. When this happens, they will prbably be mre cperative with yu. Yu culd als surprise them by ding smething they dn't make yu d. They'll tell everyne yu are the best pssible sn r daughter and, what's mre, they will believe it.
※Click fr mre infrmatin at the red icn n the left.
Title
Hw Chinese parents shuld 81 their children
Cmmn practice
★Being 82 with mney when it cmes t educatin.
★Sending them t the best schls at hme r even 83 .
★Making children take after-schl activities in rder t 84 them a head start in life.
★Spending mre 85 than they can affrd n educatin.
86 results
★Children are nt cnfident.
Suggested ideas
★Teaching their children practical skills, which are f the greatest imprtance.
★ 87 .
★Cleaning
★Other husewrk.
★ 88 a brken radi r TV.
Gd results
★ 89 the children curius and creative.
★Teaching the children t think and use their 90 .