C2012-d13

东 南 大 学 考 试 卷（ A 卷）课程名称 现代光学基础 考试学期 12-13-2 得分 适用专业 考试形式 闭卷 考试时间长度 120分钟一．选择和填空题(共18题，共36分，每题二分) 1．一个用折射率n=1.75的玻璃做成的凸透镜放入以下哪种介质中时, 其焦距最长 ( ) A. n=1.的空气 B. n=1.33的水 C. n=1.58的苯胺 D. n=1.45的油 2．如果你有如下四种透镜,你会选用哪二种以组成放大倍数尽量大的伽利略望远镜,以便现场观看体育比赛.( )和( ) A. 像方焦距=5厘米的凸透镜 B. 像方焦距=10厘米的凸透镜 C. 像方焦距=1厘米的凸透镜 D. 像方焦距= －1厘米的凹透镜 3．做实验时,如果想用一单色自然光获得圆偏振光，应选用以下哪二种器件.( ) 和（ ） A. 1/4波片 B. 偏振片 C. 1/8波片 D. 1/2波片 4．做夫琅和费圆孔衍射实验时,如果将圆孔的直径增加一倍,则爱里斑中心位置的光强将 ( ) A.为原来的二倍 B.为原来的四倍 C.为原来的八倍 D.为原来的十六倍 5．将波长为λ的单色光从空气垂直入射到折射率为n 的透明介质膜上，要使反射光得到加强，薄膜的厚度最少应为( ) A.λ/4n ； B.λ/2n ； C.λ/4； D.λ/2。

6. 一块衍射光栅总宽为3cm ，以波长为600nm 的光垂直照射，第二级主极大出现于衍射角为300处。

则光栅的总刻度线数为 （ ）A. 1.25×104B. 2.5×104C. 6.25×103D. 9.48×1037．某种透明媒质对于空气的临界角(指全反射)等于45°，光从空气射向此媒质时的布儒斯特角是 ( )A. 35.3°；B. 40.9°；C. 45°；D. 54.7°8．在杨氏双缝干涉实验中，若单色光源S到双缝S1和S2的距离相等，则观察屏上中央明条纹位于图中O处，现将光源S向下移动到示意图中的S’位置，则( )A. 中央明纹向上移动，且条纹间距增大；B. 中央明纹向上移动，且条纹间距不变；C. 中央明纹向下移动，且条纹间距增大；D. 中央明纹向下移动，且条纹间距不变。

韦达定理命题点一：利用判别式求值例1若关于x 的方程ax2＋2(a ＋2)x ＋a ＝0有实数解，则实数a 的取值范围是 a ≥－1 .例2(1)如果关于x 的一元二次方程kx2－2k ＋1x ＋1＝0有两个不相等的实数根，那么k 的取值范围是( D )A ．k ＜12B ．k ＜12且k ≠0C ．－12≤k ＜12D ．－12≤k ＜12且k ≠0(2)若关于x 的一元二次方程12x2－2mx －4m ＋1＝0有两个相等的实数根，则(m －2)2－2m(m －1)的值为 72． 命题点二：巧用韦达定理妙解代数式例3若m ，n 是方程x2＋x －1＝0的两个实数根，则m2＋2m ＋n 的值为 0 . 例4(1)已知α，β是方程x2－x －1＝0的两个实数根，则代数式α2＋α(β2－2)的值为 0 ．(2)若关于x 的一元二次方程2x2－2x ＋3m －1＝0的两个实数根为x1，x2，且x1x2>x1＋x2－4，则实数m 的取值范围是( D )A ．m>－53B ．m ≤12C ．m ＜－53D ．－53＜m ≤12命题点三：根据根的范围求值例5已知关于x 的方程ax2＋(a ＋1)x ＋6a ＝0有两个不相等的实数根x1，x2(x1＜1＜x2)，则实数a 的取值范围是( C )A ．－1＜a ＜0B ．a ＜－1C ．－18＜a ＜0D ．a ＜－18例6已知关于x 的方程x2＋2px ＋1＝0的两个实数根一个大于1，另一个小于1，则实数p 的取值范围是 p ＜－1 ．命题点四：解绝对值方程例7设方程⎪⎪⎪⎪x2＋ax ＝4只有3个不相等的实数根，求a 的值和相应的3个根．解：方程等价于如下两个方程：x2＋ax －4＝0，① x2＋ax ＋4＝0. ② ∵原方程只有3个不相等的实根，又∵两个方程不可能有公共根，∴必有且只有方程①或②有重根，Δ1＝a2＋16≥0，Δ2＝a2－16≥0.由于Δ1>Δ2，故只可能是Δ2＝0，即a ＝±4.∴当a ＝4时，相应的根为－2，－2±22；∴当a ＝－4时，相应的根为2，2±2 2.例8若关于x 的方程x2－(m ＋5)⎪⎪⎪⎪x ＋4＝m 恰好有3个实数解，则实数m ＝ 4 . 命题点五：构造方程求值例9已知m2－2m －1＝0，n2＋2n －1＝0且mn ≠1，则mn ＋n ＋1n的值为 3 ． 例10已知mn ≠1，且5m2＋2 018m ＋9＝0，9n2＋2 018n ＋5＝0，则m n值为( B )A.59B.95C.6703D ．－402 命题点六：三角形边的问题例11如果方程(x －1)(x2－2x ＋m)＝0的三个根可以作为一个三角形的三边之长，那么实数m 的取值范围是( C )A ．0≤m ≤1B ．m ≥34 C.34＜m ≤1 D.34≤m ≤1 例12△ABC 的一边长为5，另外两边长恰为方程2x2－12x ＋m ＝0的两个根，则m 的取值范围是 112<m ≤18 ． 命题点七：整数根问题例13已知整数p ，q 满足p ＋q ＝2 010，且关于x 的一元二次方程67x2＋px ＋q ＝0的两个根均为正整数，则p ＝ －2278 ．例14求满足如下条件的所有k 的值：使关于x 的方程kx2＋(k ＋1)x ＋(k －1)＝0的根都是整数．解：分k ＝0和k ≠0两种情况讨论．当k ＝0时，所给方程为x －1＝0，有整数根x ＝1.当k ≠0时，所给方程为二次方程．设两个整数根为x1和x2，则x1＋x2＝－k ＋1k ＝－1－1k，① x1·x2＝k －1k ＝1－1k.② 由①－②，得x1＋x2－x1·x2＝－2，整理，得(x1－1)(x2－1)＝3.∵方程的根都是整数，∴(x1－1)(x2－1)＝3＝1×3＝(－1)×(－3)．有x1－1＝1，x2－1＝3或x1－1＝－1，x2－1＝－3.故x1＋x2＝6或x1＋x2＝－2，即－1－1k ＝6或－1－1k ＝－2，解得k ＝－17或k ＝1. 又∵Δ＝(k ＋1)2－4k(k －1)＝－3k2＋6k ＋1，当k ＝－17或k ＝1时，都有Δ＞0.∴满足要求的k 值为0，－17，1. 课后练习1．已知关于x 的一元二次方程mx2－(m ＋2)x ＋m 4＝0有两个不相等的实数根x1，x2，若1x1＋1x2＝4m ，则m 的值为( A ) A ．2 B ．－1 C ．2或－1 D ．不存在2．已知关于x 的方程x2－(a2－2a －15)x ＋a －1＝0的两个根互为相反数，则a的值是( B )A．5 B．－3 C．5或－3 D．13．已知四个互不相等的正实数a，b，c，d满足(a2012－c2012)(a2012－d2012)＝2 012，(b2012－c2012)(b2012－d2012)＝2 012，则(ab)2012－(cd)2012的值为( A )A．－2 012 B．－2 011 C．2 012 D．2 0114．若实数a，b满足12a－ab＋b2＋2＝0，则实数a的取值范围是( C ) A．a≤－2 B．a≥4 C．a≤－2或a≥4 D．－2≤a≤45．已知关于x的方程x2＋(k－2)x＋5－k＝0有两个大于2的实数根，则k的取值范围是( A )A．－5＜k≤－4 B．k>－5 C．k≤－4 D．－4≤k＜－26．关于x的一元二次方程x2－2kx＋k2－k＝0的两个实数根分别是x1，x2，且x21＋x22＝4，则x21－x1x2＋x22的值为4 ．7．如果m，n是两个不相等的实数，且满足m2－m＝3，n2－n＝3，那么代数式2n2－mn＋2m＋2 015＝2026 .8．设a，b是一元二次方程x2－x－1＝0的两个根，则3a3＋4b＋2a2的值为11 ．9．若方程⎪⎪⎪⎪x2－5x ＝a 有且只有相异的两个实数根，则a 的取值范围是 a ＝0或a>254． 10．若p ＋q ＝198，则方程x2＋px ＋q ＝0的最大整数解为 200 ．11．关于x 的一元二次方程x2－mx ＋2m －1＝0的两个实数根分别是x1，x2，且x21＋x22＝7，求下列代数式的值：(1)(x1－x2)2. (2)x2x1＋2＋x1x2. 解：由根与系数的关系，得x1＋x2＝m ，x1·x2＝2m －1.∵x21＋x22＝(x1＋x2)2－2x1x2＝m2－2×(2m －1)＝7，∴m2－4m －5＝0.∴m1＝5，m2＝－1.当m1＝5时，Δ＝m2－4(2m －1)＝25－36＝－9＜0(不合题意，舍去)； 当m2＝－1时，Δ＝1－(－12)＝13>0.∴m ＝－1.∴x1＋x2＝－1，x1x2＝－3.∴(x1－x2)2＝(x1＋x2)2－4x1x2＝13，x2x1＋2＋x1x2＝(x1＋x2)2x1·x2＝－13.12．已知方程x2＋px ＋q ＝0的两个根是x1，x2，那么x1＋x2＝－p ，x1x2＝q.请根据以上结论，解决下列问题：(1)已知a ，b 满足a2－15a －5＝0，b2－15b －5＝0，求a b ＋b a的值． (2)已知a ，b ，c 均为实数，且a ＋b ＋c ＝0，abc ＝16，求正数c 的最小值． 解：(1)当a ≠b 时，则a ，b 为方程x2－15x －5＝0的两个根，∴a ＋b ＝15，ab ＝－5.∴原式＝a2＋b2ab ＝(a ＋b)2－2ab ab ＝152－2×(－5)－5＝－47. 当a ＝b 时，原式＝2.综上所述，a b ＋b a的值为－47或2. (2)由条件，得a ＋b ＝－c ，ab ＝16c ，则a ，b 为方程x2＋cx ＋16c＝0的两个实数根，∴Δ＝c2－4×16c≥0，c3≥64，即c ≥4. 故正数c 的最小值为4.13．(自主招生模拟题)已知x1，x2，x3(x1＜x2＜x3)为关于x 的方程x3－3x2＋(a ＋2)x －a ＝0的三个实数根，则4x1－x21＋x22＋x23的值为( A )A ．5B ．6C ．7 D.814．(自主招生模拟题)设a ，b ，c ，d 为四个不同的实数，若a ，b 为方程x2－10cx －11d ＝0的根，c ，d 为方程x2－10ax －11b ＝0的根，则a ＋b ＋c ＋d ＝ 1210 ．15．(自主招生真题)设x 为正数，求分式x (x ＋1)2的最大值． 解：设k ＝x (x ＋1)2. 整理，得kx2＋(2k －1)x ＋k ＝0.由Δ＝(2k －1)2－4k2≥0，得k ≤14， 即分式x(x ＋1)2的最大值为14.。

姓名：______________ 班级：____________日期：______________ 分数：____________ 一．根据所给单词的汉意填空。

（10分）1. The pandas are ______________(处在危险当中)。

We should help them.2. I have lived in Shanghai for ________________（多于）five years.3. Lisa ________________________(爱上)painting when she saw it.4. Y ou are too fat. Y ou should eat ________. (更少)5. ---Can the children cook _____________ (靠他们自己)? ---Y es, they can cook well6. If you study hard, you’ll ____________ （能够）get good grades.7. How are you ___________________(和……相处)your sister?8. I met some ____________(外国人) on my way home.9. He is famous _______________________. (在全世界)10. If you go to the party, you __________________________.（会玩得很高兴）二．选择题。

（30分）( ) 1. Half the class ______.A .is sing B. is singing C. are singing D. sings( ) 2. The place is famous _____ its hot spring（温泉）.A. asB. toC. forD. with( ) 3. Don’t eat food in class. If you do, the teacher will ______.A. take them awayB. take away itC. take it awayD. take away them( ) 4. I got _____ a surprise that I didn’t believe my eyes.A. soB. veryC. prettyD. such( ) 5. The old man lives in the house ______, but he doesn’t feel _______.A. lonely; lonelyB. alone; loneC. alone; lonelyD. lonely; lone( ) 6. Please wait for a moment. I have ______ to tell you.A. interesting somethingB. something interestingC. interesting anythingD. anything interesting( ) 7. I hope we will have _______ people and _____ pollution.A. fewer, lessB. fewer, fewerC. less, lessD. less, fewer( ) 8. ---Would you like some juice or cola? ---______. I’d like some water.A. BothB. EitherC. NeitherD. None( ) 9. Mr. Wang told me he ______ lunch when I called him.A. hadB. was havingC. hasD. is having( ) 10. We didn’t know _________________.A. what are they shouting aboutB. what they are shouting aboutC. what they were shouting aboutD. what were they shouting about( ) 11. There are ___________ fans at the airport.A. hundred B hundreds C. hundred of D. hundreds of( ) 12. Dad, you should tell Tom _______ with his friends.A. not to fightB. don’t fightC. doesn’t fightD. not fight( ) 13. Both my parents went out to work, so I didn’t know _______ after my baby sister.A. what to lookB. how to lookC. where to lookD. when to look( ) 14. My mother _______ one hundred yuan for the T-shirt.A. spentB. tookC. costD. paid( ) 15. Did it take them _____ back home by bus?A. five and a half hours cameB. five and half hour comingC. five hours and a half to comeD. five hour and a half had come( ) 16. Can you come to my house ________ Friday evening _______ my birthday party?A. on, withB. in, withC. on, forD. in, for( ) 17. If the man ______ you, we ______ the police.A. will follow, will callB. will follow, callC. follows, will call D follows, call( ) 18. My sister wants a new dress. She __________ it to the party.A. wearsB. has wornC. woreD. is going to wear( ) 19.They always do _____ every day, because they know it is ______ for them to do so.A. enough exercise, enough easyB. exercise enough, easy enoughC. enough exercise, easy enoughD. exercise enough, enough easy( ) 20. ---How long can I _____ this book? ---For a week.A. borrowB. lendC. returnD. keep( ) 21. ---Would you mind ______ those old jeans? ---No, _______.A. don’t wear, I wouldn’tB. not wearing, not at allC. not to wear, I can’tD. doesn’t wear, please don’t( ) 22. Please ______ who broke the window.A. find outB. findC. look forD. look out( ) 23. If you happen _______ that interesting story, please tell me.A. to findB. findingC. foundD. finds( ) 24. Y ou ______ to the meeting this afternoon if you have something important to do.A. needn’t to comeB. don’t need comeC. don’t need comingD. needn’t come( ) 25. Would you like to have ______ cake? --- No, thanks. I’m full.A. anotherB. otherC. othersD. the other( ) 26. ---________ have you been learning to swim? ---Half a year.A. How oftenB. How longC. WhenD. How far( ) 27. My father has been working on this farm for ________.A. all this five yearsB. whole this five yearsC. these all five yearsD. all these five years ( ) 28. He has been working here __________.A. two years agoB. in two yearsC. since two years agoD. for two years ago( ) 29. They will lose the game ________ they try their best.A. unlessB. onceC. sinceD. after( ) 30. ---I’ll go to Beijing for the coming summer holiday. ---_________.A. Thank youB. It doesn’t matterC. The same to youD. Have a good time三．完形填空。

1、印刷10301班 9-16周印刷毕业设计（王小燕，吴士宝）2、装潢10301班 9-12周装潢专业拓展实训II（乐建军） 13-20周装潢毕业设计（杨芬）3、染整10301班 9-11周综合小样实训（何芳蓉，解子燕）12-20周染整毕业设计（郭开华，解子燕）4、服设10301班 12-19周服设毕业设计（温振华，高菁）1、服工10301班 11-18周服工毕业设计（徐四清，孔莉）2、服工10302班 11-18周服工毕业设计（陈汉东，潘婷）3、服工10303班 11-18周服工毕业设计（吴丹，叶晓晓）4、服表10301班1-8周服装表演组织策划编导（向虹云） 9-16周服表毕业设计（向虹云，杨贤）1、服营10301班 9-16周服营毕业设计（汪玲，任泉竹）2、纺艺11301班 7-9周采风调研（侯刚，任泉竹）3、纺设11301班 18-19周纺织品检测职业技能考证实训4、染整11301班 17-20周染色小样实训（廖选亭，解子燕）1、纺贸11301班15-16周生态纺织品检验实训（马小强，郭开华）18-19周面料分析实训（王作宏，王宝根）2、纺贸11302班 16-17周面料分析实训（王作宏，王宝根） 13-14周生态纺织品检验实训（马小强，郭开华）3、装潢11301班、装潢11302班 9-11周写生摄影（王小燕，杨芬）4、装潢11301班 19-20周平面设计实训II （孟旭民）D50065、装潢11302班 14-15周平面设计实训II （孟旭民）D50021、服表11301班 8-9周表演专业拓展实训II （杨贤）2、服工11301班 12-13周服装工艺实训（潘婷，汪玲）3、服工11302班 18-19周服装工艺实训（潘婷，汪玲）1、印刷11301班印前综合实训 16-18周（王小燕吴士宝）D5008/排版软件实训 12-13周（吴士宝）D50022、印图11301班排版软件实训 10-11周（吴士宝）D50021、纺艺12301班：19-20周纺织品饰品制作基础实训潘婷。

《专业综合-电子技术》11级复习资料c B A ．增加 B ．减少 C ．不变 D ．等于零 2.如图12-1所示电路中，二极管导通时压降为0.7V ，反偏时电阻为∞，则以下说法正确的是（ ）。

A.VD 导通，U AO =5.3V ；B.VD 导通，U AO = -5.3V ；C.VD 导通，U AO = -6.7V ；D.VD 导通，U AO =6.7V ；E.VD 截止，U AO =-9V 。

3.测得工作在放大状态的某个三极管两个电极的电流如图1-2所示，那么第三个电极的电流大小、方向和引脚自左至右的顺序分别是（ ） A.0.03mA ，流进三极管；c 、e 、b B.0.03mA ，流出三极管；c 、e 、b C.0.03mA ，流进三极管；e 、c 、b D.0.03mA ，流出三极管；e 、c 、b4.半导体二极管的主要特点是具有（ ）。

A.电流放大作用B.单向导电性C.电压放大作用C.功率放大作用5.温度升高时，晶体管的反向饱和电流I CBO 将( )。

A.增大B.减少 C.不变 D.不能确定6.单相桥式整流电路变压器次级电压为10V(有效值)，则每个整流二极管所承受的最大反向电压为( )A.10VB.14.14VC.20VD.28.28V7.下列各组态放大电路中，若要求既有电压放大作用，又有电流放大作用，应选（ ）A.共射组态B.共基组态C.共集组态D.共漏组态 8.组合放大电路的输出级采用射极输出方式是为了使( )。

A.电压放大倍数高B.输出电流小C.输出电阻增大D.带负载能力强9.在放大器中引入不同的反馈可以改变放大器的性能，当我们希望增加输出电阻时应该引入( )。

A.电压正反馈B.电压负反馈C.电流正反馈D.电流负反馈10.放大电路中为增大输入电阻应引入（ ）反馈，。

A.电压B.电流C.串联D.并联11.三极管组成的放大电路在工作时，测得三极管上各电极对地直流电位分别为V E ＝2.1V ，V B ＝2.8V ，V C ＝4.4V ，则此三极管已处于（ ）。

2012——2013学年度第一学期期中考试七年级数学试卷（时间100分钟 满分120分）亲爱的同学，这份试卷将记录你的自信、沉着、智慧和收获. 我们一直投给你信任的目光。

请认真审题，看清要求，仔细答题. 预祝你取得好成绩！ 一、精心选一选（本大题共8题，每小题3分，共21分。

） 1．－3的相反数是（ ） A ．3B ．－3C ．13D ．13-2．已知矩形周长为20cm ，设长为x cm ，则宽为 （ ） A. x -20 B.220x- C.x 220- D. x -10 3．下列化简，正确的是（ ）A ．－(－3)= －3B ．－[－(－10)]= －10C ．－(＋5)=5D ．－[－(＋8)]= －8 4．据统计，截止5月31日上海世博会累计入园人数为803万．这个数字用科学记数法表示（ ）A ．8×106B ．8.03×107C ．8.03×106D ．803×1045．绝对值大于2且小于5的所有整数的和是 （ ） A ．0 B ．7 C ．14 D ．286．已知代数式x ＋2y ＋1的值是3，则代数式2x ＋4y ＋1的值是 A ．4 B ．5 C ．7 D ．不能确定 7．观察下列各式： ()1121230123⨯=⨯⨯-⨯⨯ ()1343452343⨯=⨯⨯-⨯⨯……计算：3×(1×2+2×3+3×4+…+99×100)= （ ）A ．97×98×99B ．98×99×100C ．99×100×101D ．100×101×102 二、细心填一填（本大题共10题，每小题3分，共30分）8．如果－20%表示减少20%，那么＋6%表示9．单项式25xy -的系数是10．表示“x 与4的差的3倍”的代数式为_____________11．若15423-+-n m b a b a与的和仍是一个单项式，则m +=n12．多项式223(2)1mx y m x y ++-是四次三项式，则m 的值为 13．化简： =-++-)7()35(x y y x _______________.14．若关于a ，b 的多项式()()2222222a ab b a mab b ---++不含ab 项，则m=15.用黑白两种正六边形地面瓷砖按如图4所示规律拼成若干图案，则第n 个图案中有白色地面瓷砖 _______________块。

2012-12VB选择题1答案1-1、要判断在⽂本框中是否按了空格键，应通过⽂本框中（C ）事件判断。

A、ClickB、LostFocusC、KeyPressD、DblClick1-2、（D ）操作不能打开属性窗⼝的是：A、按F4建B、单击⼯具栏的“属性窗⼝”按钮C、执⾏“视图”菜单中的“属性窗⼝”命令D、按Ctrl+R1-3、当⽂本框的（C ）属性值设置为True时，⽂本框控件相当于标签的作⽤。

A、TabstopB、VisibleC、LockedD、Enabled1-4、（B ）类⽂件不能在“⼯程资源管理器”窗⼝中列出？A、.basB、.ocxC、.vbpD、.cls1-5、在运⾏程序时要判断窗体的系统事件Load、Activate、Initialize，这些事件发⽣的顺序是（ D ）。

A、Activate、Load、InitializeB、Initialize 、Activate、Load、InitializeC、Load、Activate、InitializeD、Initialize、Load、Activate2-1、窗体上有⼀个命令按钮Command1,编写如下事件过程：Private Sub Command1_Click()Dim x As IntegerStatic y As Integerx = x + 3y = y + 6End Sub2-2、下列变量（ A ）的数据类型是字符型。

A、X$B、X#C、X%D、X!2-3、Integer类型的变量可存放的最⼩整数为（C ）A、-256B、-255C、-32768D、-327672-4、在窗体中，⽤（D ）语句声明的变量X是全局变量A、Private X As IntergerB、Dim X As IntergerC、Static X As IntergerD、Public X As Interger2-5、⽤Dim Arr(5, -3 To 3) As Integer语句定义数组Arr后，下列语句中不正确的是（A ）。

江苏省淮阴中学2012-2013学年第一学期期中考试试卷高一地理第Ⅰ卷（共70分）一、单项选择题：（30小题，每题2分，共60分。

在下列各小题的四个选项中，只有一个选项是最符合题目要求的。

请填涂在答题卡上）下图为7月份某时刻日全食（月球位于日地之间）发生时太阳、地球、和月球的位置示意图。

完成1-3题。

1．图中所示天体系统有A．1级 B.2级 C.3级 D.4级2．图中甲乙丙丁表示“二分二至”时地球在公转轨道上的位置。

北半球夏至时，地球位于A．甲处 B．乙处 C．丙处 D．丁处3．月球上没有生命物质存在的主要原因是A．与太阳距离太远 B.宇宙环境不安全C．没有适宜生物呼吸的大气 D.没有昼夜更替现象4．太阳释放的能量主要是A．太阳内部铀等重元素裂变释放的辐射能B．飞离太阳大气层的带电粒子的能量C．氢原子核聚变为氦原子核所释放的能量D．氦原子核裂变所释放的能量5．2011年正值太阳活动高峰年，下列叙述正确的是①太阳黑子和耀斑都产生在太阳色球层上；②太阳大气由外向内依次为光球层、色球层、日冕层；③太阳活动发出的强烈粒子流扰乱地球磁场，产生“磁暴”现象；④后一次太阳活动高峰年约是2022年前后；B．①② B．③④ C．①③ D．②④6．下列4图中，正确表示地球自转方向的是A． B． C． D．7．我们日常生活中所说的一天是指A．地球自转的真正周期 B．地球公转的周期C．一个太阳日 D．一个恒星日读右侧“太阳光照图”，回答8-10题。

8．形成昼夜的原因是A. 地球的自转B. 地球的公转C. 黄赤交角的存在D．地球是个不发光、也不透明的球体9．右图中分界线（阴影部分为黑夜）是A. 晨线B. 昏线C. 本初子午线D. 日界线10．图中A、B、C三地的自转角速度和线速度相比较，正确的说法是A．三地的角速度和线速度都相同 B．三地的角速度和线速度都不同C．角速度相同，线速度各不相同 D．线速度相同，角速度各不相同据凤凰网报道，飓风“桑迪”于纽约（西5区）时间10月29日晚8点左右在新泽西州大西洋城登陆。

湛江师范学院2012－ 2013学年度第一学期2011级期中考试试题C(考试时间:100分钟)考试科目：大学英语题号I 总分分值100 100Part I Choose the Correct Answer to Each Question and Mark Your Answers on the Answer Sheet. (100%)1. He went to the dance last night but couldn’t find a _______ because of his strange clothes.A) pond B) saddle C) partner D) salad2. They _______ cattle mainly for the international market.A) carpenter B) district C) ox D) breed3. The Foreign Minister made an excellent _______ on the current international situation.A) committee B) command C) comment D) commission4. The ______production of engines in our factory has doubled this year.A) manual B) annual C) amount D) alike5. These diseases ______ a vicious circle of poverty and hopelessness by depressing production.A) reinforce B) worsen C) deteriorate D) increase6. In order to _______ a good knowledge of English, he gave up his job and went to study in anEnglish school.A) require B) inquire C) acquire D) address7. Metals expand when they are heated and _______ when cooled.A) indicate B) eliminate C) conquer D) contract8. Jack is _______ of stealing the books from the library.A) accused B) witnessed C) strained D) found9. It’s just _______ bite. There is nothing to worry about.A) a vessel B) a temple C) an insect D) an arbitrary10. Jack London worked very hard and finally he _______ success.A) made B) found C) sought D) achieved11. The rebuilding plan was _______ to the committee.A) taped B) admitted C) trapped D) napped12. The rent for this house is $ 250. But you need also pay $50 first as the _______.A) deposit B) council C) desired D) submitted13. This highway runs _______ to the railway.A) identical B) suitable C) parallel D) distribution14. She likes the _______ flower instead of the natural one.A) article B) adventure C) ancient D) artificial15. Some people say that education is the best _______ for children.A) investigation B) organization C) investment D) origin16. The ground around here is mostly _______ and not very good for farming.A) board B) clay C) kid D) wax17. His speech _______ the young people to continue their study.A) glanced B) delayed C) inspired D) created18. It is a _______ truth that man is the only animal that has the power to speak and reason.A) worthy B) virtual C) universal D) indefinite19. What we need to learn is how to put theory into _______ when we begin our fieldwork here.A) appearance B) application C) accomplish D) achievement20. The _______ between the two playing periods of a football game is only a few minutes.A) internal B) reserve C) interval D) radium21. The question then ________: What are we going to do when we graduate from the university?A) raises B) arouses C) arises D) rises22. There are two governments in this country. But neither of them is regarded as the _______ oneby the other.A) panel B) legal C) purple D) republic23. The wounded soldiers’ blood _______ the ground red at the front.A) died B) dumped C) drawn D) dyed24. How can we finish the work in the _______ of any other helpers?A) era B) haste C) spare D) absence25. Since 1978, many new _______ have been developed in our university to meet the increasingdemands of the students.A) disciplines B) entrances C) checks D) flames26. If there is no other way to save a _______ person in a tall building on fire, fire fighters mayspread a net into which the person can jump.A) volt B) wrapped C) trapped D) deserted27. In the film we saw last night, the hero _______ his wife to death with his sword.A) throat B) thrust C) trust D) thread28. Postage rates depends upon several factors: the type of communication, the ______, the weightand the method of transportation.A) destination B) destiny C) distribution D) termination29. His hands were __________ so violently that he almost spilt his tea.A) quivering B) tremble C) shivering D) shaking30. Our son doesn’t know what to ____at the university; he can’t make up his mind about his future.A) take in B) take up C) take over D) take after31. No one had told smith about _______ a lecture the following day.A) there be B) there would be C) there was D) there being32. Purchasing the new production line will be a __________ deal for the company.A) forceful B) tremendous C) favorite D) profitable33. None of us expected the chairman to___ at the party. We thought he was still in hospital.A) turn in B) turn over C) turn up D) turn down34. The twentieth century has witnessed an enormous worldwide political, economic and cultural_______.A) tradition B) transportation C) transmission D) transformation35. Although a teenager, Fred could resist ________ what to do and what not to do.A) being told B) telling C) to be told D) to tell36. Apart from caring for her children, she has to take on such heavy _______housework ascarrying water and firewood.A) time-consumed B) timely-consumed C) time-consuming D) timely-consuming37. The lecture which l asted about three hours was so ____ that the audience couldn’t helpyawning.A) tedious B) bored C) clumsy D) tired38. I’ve _____ out your share of the expenses at $5.A) worked B) found C) checked D) looked39. We tried _______ to contact her.A) vacant B) in vain C) in vest D) vice40. They ______ to get some information.A) volunteered B) looked forward C) interviewed D) voted41. Some white ants surround their nests with huge mounds of _____ up to forty feet high.A) sticks B) effluents C) slime D) dirt42. It is a ______ experience.A) worthy B) worthwhile C) worthy of D) worth43. It is reported that these medals are awarded _____ for achievements in the fields of arts,sciences, government and entertainment.A) specifically B) annually C) partly D) periodically44. Peter loves his mother very much and he also loves his wife. To him, they ______ equally.A) value B) counter C) weigh D) count45. There is a big distinction between working hard and being a ________.A) workaholic B) workaholics C) workaholism D) materialism46. For years now, the people of that faraway country have been cruelly ______ by a dictator.A) depressed B) immersed C) oppressed D) cursed47. To those who understand ______ service, it is no surprise that tension and emotional problemsare so prevalent in our me-first society.A) self B) selfless C) self-sufficient D) selfish48. Free medical treatment in this country covers sickness of mind as well as _____ sickness.A) normal B) regular C) average D) ordinary49. I hope that you'll be more careful in typing the letter. Don't _____ anything.A) withdraw B) omit C) reduce D) lead50. Many new ____ will be opened up in the future for those with a university education.A) realities B) necessities C) opportunities D) probabilities51. The little girl was so frightened that she just wouldn't ______ her grip on my arm.A) remove B) loosen C) relieve D) dismiss52. Not having a good command of English can be a serious _____ preventing you from achievingyour goals.A) offense B) fault C) obstacle D) distress53. A house with a dangerous gas _____ can be broken into immediately.A) leak B) mess C) split D) crack54. He is __________ about his chances of winning a gold medal in the Olympics next year.A) optimistic B) optional C) outstanding D) obvious55. We booked rooms at the hotel ________we should find no vacancies on our arrival.A) whenever B) if C) since D) lest56. The roof of the house was _____ falling in and the front steps were rotting away.A) practically B) essentially C) always D) basically57. Professor Baker told me that this bottle was _____ as poison.A) signed B) labeled C) labored D) determined58. The ____ goal of the book is to help bridge the gap between research and teaching particularly between researchers and teachers.A) intensive B) concise C) joint D) overall59. When the wind died down, the sailboat ____ toward the beach.A) headed B) returned C) hurried D) drifted60. Fluency in three languages ____ her for work in the European Parliament.A) qualifies B) enables C) credits D) deserves61.Now let’s take a look at Shanghai and Beijing. The former is now the center of trade and finance,and the ____ seat of the national government.A) last B) latter C) later D) late62. Sport provides a(n) ____ for a teenager’s feelings of aggression or frustration.A) exit B) exhaust C) outlet D) leak63. Y ou cannot imagine how I feel ____ with my duties sometimes.A) overflowed B) overwhelmed C) overthrown D) overturned64. The cancellation of the flight ____ many passengers to spend the night at the airport.A) geared B) abandoned C) obliged D) tortured65. Only a selected number of landladies in the neighborhood have been allowed by the universityto take in _____.A) residents B) inhabitants C) lodgers D) settlers66. A lot of people find _____ art very difficult to understand.A) contemporary B) content C) conscious D) consistent67. We are doing this work in the _____ of reforms in the economic, social and cultural spheres.A) context B) contest C) pretext D) texture68. The team _____ in spite of the extremely difficult conditions.A) carried out B) carried off C) carried on D) carried forward69. When crossing a busy street, we should be very _______ of the speeding cars.A) ignorant B) cautious C) capable D) alert70. Success in school _______ much hard work.A) calls for B) calls off C) calls up D) calls on71. His constant _____ with his peers has left its mark on his growth.A) consent B) contract C) context D) contact72. In his wife’s eyes, his _____ to their marriage life is far from perfect.A) requirement B) commitment C) participation D) reflection73. Experts have _____ with some effective measures to prevent the disease from spreading.A) come down B) come up C) come cross D) come74. The problem is that what you do is not _____ with what you say.A) consistent B) continuous C) considerate D) continual75. Nothing is worse than the ____ between what is right and what is wrong.A) connection B) establishment C) illustration D) confusion76. Our journey was slow because the train stopped ____ at different villages.A) unceasingly B) gradually C) continuously D) continually77. During the conference the speaker tried to_____ to the audience his feelings concerning theurgency of a favorable decision.A) comply B) impose C) imply D) convey78. _____ the popular belief that classical music is too complex, it achieves a simplicity that only agenius can create.A) Subject to B) Contrary to C) Familiar to D) Similar to79. I am firmly _____ that this plan would do much good to our company.A) composed B) convinced C) recognized D) satisfied80. She was afraid that unless the train speeded up she would miss her _______ to Scotland.A) junction B) connection C) seat D) carriage81. We need to ______ the purpose of the experiment again.A) clarify B) cling C) claim D) clap82. His long illness and ______ absence put him far behind in his study.A) sequent B) consequent C) frequent D) subsequent83. This class is only ______with English language.A) related B) have do C) concerned D) dealt84. It is very ______ of you to make all the necessary arrangement for me.A) considerable B) considerate C) thoughtfully D) thankful85. The poet _____ the woman he loves to a rose.A) contrasts B) compares C) compels D) companies86. The discussion quickly became a very ______ argument about increasing price.A) heated B) roaring C) warm D) boiling87. Should you require any further details at this time，please do not ______ to contact me.A) void B) hesitate C) delay D) prevent88. The story was so touching that I could hardly ______ my tears.A) hold on B) hold on to C) hold up D) hold back89.When Jane fell off the bike，the other children______.A) were not able to help laughter B) could not help but laughingC) could not help laughing D)could not help to laugh90. He tried to ______ with the manager for his salary.A) evaluate B) object C) bargain D) pause91. The soldier was of running away when the enemy attacked.A) scolded B) charged C) charged D) accused92. We had to ______ a lot of noise when the children were at home.A) go in for B) hold on to C) put up with D) keep pace with93.San Francisco is usually cool in the summer，but Los Angeles_______.A) is rarely B) rarely is C) is hardly D) is scarcely94. It is not easy to learn English well but if you _______ ，you will succeed in the end.A) hang up B) hang about C) hang on D) hang onto95. He was killed in a traffic_______ in 1999.A) incident B) event C) incidence D) accident96. The traffic police were searching for evidence to prove the accused man's _______，but in vain.A) mistake B) guilt C) fault D) defect97. Every camera we sell comes with a two-year_______.A) guarantee B) safety C) confirmation D) conservation98.Nowadays, almost every household has different kinds of electrical ____ to relieve manual labor.A) apparatus B) facilities C) equipment D) appliances99. In ____ with the new regulations, each member has to pay the fee by 5th every month.A) combination B) connection C) accordance D) equipment100. It is sometimes possible for students to _____ a large vocabulary without the help of a teacher.A) acquire B) achieve C) grasp D) attain。