第一篇:北郵網(wǎng)絡(luò)學(xué)院大學(xué)英語2階段作業(yè)
一、閱讀理解(共1道小題,共25.0分)
1.In the eighteenth century young ladies in Italy knew history and geography little.Once the French officer in Rome was giving a ball to which many important people were invited.The Italian Minister(大臣)came very late.A young lady, who knew him, saw him enter the ball-room and asked why he was so late.“Oh, nothing important,” answered the Minister.“Our head forgot to take his letters with him and went back to his hotel to bring them.If he had left them in Brazil we should have had to wait at least six months for them.” “Is Brazil so far from Rome?” asked the lady, who knew very little geography.“It is in the New World,” said the Minister.“In the New World?” repeated the lady in great surprise.“Yes, in the New World, which was discovered by Christopher Columbus.” When the young lady heard this, she rushed into the middle of the ball-room and shouted as loud as she could: “Ladies and gentlemen, have you heard the latest news? A new world has just been discovered by a certain Christopher Columbus.” 1.Why was the Minister late? A.The head left his letters in Brazil.B.He had a traffic accident.C.The head had to go back to Brazil.D.The head left his letters in the hotel.2.Where did the head leave his letters? A.In the hotel.B.In Brazil.C.In his office.D.In Rome 3.Why did the young lady shout? A.She wanted to tell the surprising news.B.She was the hostess of the ball.C.She knew the Minister.D.She had never heard about Columbus.4.Her shouting showed she was______.A.clever B.lack of knowledge C.thoughtless D.knowledgeable 5.The best title for the passage is ______.A.The New World B.Surprising News C.An Ignorant Italian Woman D.Christopher Columbus
試題分值:25.0 得分:[5, 5, 5, 5, 5] 提示:[1]D.細節(jié)題。本題問“為什么大臣遲到了?”中心詞是“Minister late”。答案在第三段。該段大意是“‘哦,沒什么嚴重的事情’大臣回答道。‘我們上司忘記帶信了,所以他就回賓館取信去了。如果他把信件遺留在巴西的話,那我們可要等上至少六個月了。’”據(jù)此,可知本題答案是D。
[2]A.細節(jié)題。本題問“那個大臣的上司把信忘記在什么地方了?”中心詞是“head”和“l(fā)etters”。答案在第三段,該段大意請參考第一題。答案是A。
[3]A.細節(jié)題。本題問“為何那個年輕女士叫了起來?”中心詞是“the young lady shout”。答案在最后一段,該段大意是“女士們、先生們,你們聽說了最新的消息了嗎?一個叫哥倫布的人不久剛發(fā)現(xiàn)了一個新世界。”據(jù)此,可知答案是A(她想告訴大家這個驚人的信息)。B的意思是“她是舞會的女主人”,C的意思是“她認識那個大臣”,D的意思是“她從沒聽說過哥倫布”。[4]B.推斷題。本題問“她的叫喊表明她_______?!蓖茢囝}一般需要我們先瀏覽一下選項。A的意思是“聰明的”,B的意思是“知識缺乏的”,C的意思是“無思想的,笨的”,D的意思是“有見識的”。根據(jù)第三題的解釋我們可以看出這名女士對哥倫布發(fā)現(xiàn)新大陸(新大陸是15世紀末發(fā)現(xiàn)的,而本文的背景是18世紀)的這種大事都不知道,可見其缺乏知識。據(jù)此,答案是B。
[5]C.中心思想題。本題讓我們給文章選個最好的標題。我們可以先瀏覽每個段落的第一句話。第一段就是一句話,該句大意是“十八世紀的意大利少女,她們的歷史知識、地理知識一般來說非常貧乏。”讀到這里,我們應(yīng)該可以知道這樣的一個句子明顯就是文章大意的概括,所以題目就要和此相關(guān)。當然,你也可以再繼續(xù)讀幾段,你會發(fā)現(xiàn)文章出現(xiàn)了一名女士和一位意大利大臣之間的對話。最終,我們選擇C(一個無知的意大利女性)。
二、單項選擇題(共15道小題,共75.0分)
1.The prospect of working under a woman_________ the ultimate indignity.A.formed B.came C.constituted D.composed 知識點: 第一部分 學(xué)生答[C;] 標準答案: 案: 得分: [5] 試題分值:
C;5.0 該題選C,題目大意是“在一個女人手下干活,就覺得是最大的侮辱?!?/p>
提示: constitute:及物動詞 vt.構(gòu)成,組成
This move constitutes an act of aggression.這一舉動構(gòu)成了侵略行為。
2.3.Being _________ money and wanting to do something useful, I applied.A.short of B.short for C.1ack of D.slim of 知識點: 第一部分
A;5.0 學(xué)生答[A;] 標準答案: 案: 得分: [5] 試題分值: 該題選A,題目大意是“我因為手頭很拮據(jù),同時也想干點有用的事,于是便提出了申請?!?be short of:有“缺少??”之意
1.We′re short of cash.我們的資金不足
提示: 2.The rebels were short of gunpowder.反叛者們?nèi)鄙購椝帯?/p>
3.Otherwise you′ll be short of money all term.否則你真?zhèn)€學(xué)期都將缺錢。
4.5.The evergreen shrubs struggled to _________ the dust and fumes from the busy main road.A.live B.survive C.fight D.resist 知識點: 第一部分
B;5.0 學(xué)生答[B;] 標準答案: 案: 得分: [5] 試題分值: 該題選B,題目大意是“這些冬青灌木經(jīng)受著從繁忙的大街一吹來的塵煙,掙扎著活下去?!?survive: 及物動詞 vt.1.在...之后仍然生存,從...中逃生
Only two passengers survived the air-crash.提示: 這次飛機失事只有兩名乘客幸免于死。
2.比...活得長;喪失(配偶,親人等)She survived her husband by twenty years.她丈夫去世后她又活了二十年。不及物動詞 vi.活下來,幸存;殘留 Few survived after the flood.洪水后極少有人生還。6.7.It _________an awkward journey.A.tested B.verified C.proved D.turned 知識點: 第一部分 學(xué)生答[C;] 案: 得分: [5]
標準答案: 試題分值:
C;5.0 該題選C,題目大意是“這上路去那兒原來還真麻煩。”
prove:及物動詞 vt.1.證明,證實
I′ll prove to the world that he was right.提示: 我將向世人證明他是對的。
The lawyer proved the innocence of his client.律師證實了他的當事人的清白。2.表現(xiàn),顯示
She has proved herself unreliable.她的表現(xiàn)說明她靠不住
8.9.Bill has ________ to Beijing University for a teaching assistantship, but his chances of getting it are slim.A.proved B.attached C.applied D.asked 知識點: 第二部分
C;5.0 學(xué)生答[C;] 標準答案: 案: 得分: [5] 試題分值: 該題選C,題目大意是“比爾已向北京大學(xué)申請助教職位,但他得到它的可能性很小。” apply to的賓語在內(nèi)容上應(yīng)當是對之做出申請的提示: 個人或機構(gòu),例如大學(xué)(university, college)。The young girl applied to the company for a job.女孩向這家公司就職。
10.11.When he came down to breakfast, he was ________ the pleasure of a new, great discover.A.full of B.filling C.satisfied with D.beaming with 知識點: 第一部分
D;5.0 學(xué)生答[D;] 標準答案: 案: 得分: [5] 試題分值: 該題選D,題目大意是“當他下樓來吃早餐時,他正因為一個新的大的發(fā)現(xiàn)而快樂?!?beam with:堆滿笑容,眉開眼笑
提示: Upon hearing the good news he beamed with joy.一聽到這個好消息,他高興得 眉開眼笑。12.13.The razor and water ________ the job.A.act B.do C.perform D.function 知識點: 第一部分 學(xué)生答[B;] 案: 得分: [5] 提示:
標準答案: 試題分值:
B;5.0 該題選B,題目大意是“這把剃須刀與水一起就可以了?!?/p>
14.15.Seen ________ the eyes of a young friend Einstein was a simple,modest and ordinary man.A.upon B.through C.with D.in 知識第一部分 點: 學(xué)生答[B;] 標準答案: 案: 得[5] 試題分值: 分:
B;5.0 該題選B,題目大意是“在一個年輕的朋友的眼里,愛因斯坦是一個樸素、謙虛而普通的人?!?/p>
句首的Seen是過去分詞,引出一個過去分詞短語,在句中作狀語。
過去分詞作狀語應(yīng)注意,過去分詞與句子主語之間的關(guān)系
過去分詞作狀語表示被動或完成的動作。過去分詞提與句子主語之間通常存在邏輯上的動賓關(guān)系。如: 示: Grown in rich soil, these seeds can grow fast.種在肥沃的土壤里,這些種子能長得很快。
分詞在句子中作狀語,分詞的邏輯主語與句子的主語一致。使用何種分詞,要取決于分詞與句子主語之間的關(guān)系:主謂關(guān)系用現(xiàn)在分詞,動賓或被動關(guān)系用過去分詞。比較:
Seen from the sky, our city is very beautiful.(our city與see之間是被動關(guān)系)Seeing from the sky, we find our city is very beautiful.(we與see之間是主謂關(guān)系)16.17.There were still situations__________ which I couldn't be certain my decision had been the right one.A.upon B.on C.in D.with 知識點: 第一部分 學(xué)生答[C;] 標準答案: 案: 得分: [5] 試題分值:
C;5.0 該題選C,題目大意是“在有些情況下我仍然不能確定自己的決定是否正確?!?/p>
提示: situation:名詞 n.處境,境遇
He is in a difficult situation.他處境困難。
18.19.This is the first time I've attended such a big party.That is why I am not __________.A.at easy B.with ease C.at ease D.at loose 知識點: 第二部分
C;5.0 學(xué)生答[C;] 標準答案: 案: 得分: [5] 試題分值: 該題選C,題目大意是“這是我第一次參加這么大型的聚會,所以我感到很拘謹?!?at ease:舒服的;自在地;不拘束
1.The sergeant gave his men the command “At 提示: ease!” 上士向他的士兵發(fā)出口令:“稍息!”
2.The retired old worker is living at his ease.這位退休工人的生活過得很舒服。
3.His manner was so bright and pleasant that Arthur felt at ease with him at once.他的態(tài)度這樣爽朗愉快,亞瑟立刻覺得和他在一起沒有什么拘束。
20.21.She was made ___________ us everything.A.telling B.told C.to tell D.tell 知識第二部分 點: 學(xué)生[C;] 標準答案: 答案: 得分: [5] 試題分值:
C;5.0 該題選C,題目大意是“我們讓她說出了一切?!?英語中有些動詞,如:make, see, feel, hear, observe等在主動語態(tài)中其賓語不帶to的不定式結(jié)構(gòu),但在被動語態(tài)中,需用帶to的不定式。1.They made us wait for a long time.(We were 提示: made to wait for a long time.)他們讓我們等了很長時間。
2.People saw the robber enter the bank.(The robber was seen to enter the bank.)人們看見劫匪進了銀行。
22.23.Self-confidence ensures the doctor that the decision he is going to make is ____________.A.sound B.alive C.sensitive D.loud 知識點: 第二部分 學(xué)生答[A;] 標準答案: 案: 得分: [5] 試題分值:
A;5.0 提示: 該題選A,題目大意是“自信心保證了醫(yī)生對于他將做出的決定是正確合理的。”
sound:形容詞 a.正確的,合理的,明智的 1.He gave sound and practical advice.他提出了合理而正確的建議。
2.The lawyer presented a sound argument.律師拿出了理由充足的論據(jù)。
24.25.Mr.Smith is going to be ____________ as a lawyer.A.on practice B.in practice C.with practice D.at practice 知識第二部分 點: 學(xué)生[B;] 標準答案: 答案: 得分: [5] 試題分值:
B;5.0 該題選B,題目大意是“史密斯將開業(yè)作律師。” in practice:while performing one’s skills(醫(yī)師,律師等)在開業(yè)中
1.My elder brother is in practice as a doctor.提示: 我哥哥在行醫(yī)。
2.Someday when you are out in practice as a lawyer, you will thank me for my advice.有一天你出去做律師了,你會感激我今天給你的勸告的。
26.27.The committee has been __________ my letters for three months.A.going on B.working on C.studying for D.sitting on 知識點: 第二部分
D;5.0 學(xué)生答[D;] 標準答案: 案: 得分: [5] 試題分值: 提示: 該題選D,題目大意是“委員會把我的信已經(jīng)擱置了三個月了。”
sit on:delay taking action on;do nothing about 拖延;擱置;忽略
1.sit on the suggestion拖延這項建議
2.They have been sitting on my application for a whole month.他們把我的申請整整壓了一個月了。
28.29.The doctor decided to _________ Tom’s stomach to remove the tumor.A.open B.open up C.turn up D.light up 知識點: 第二部分
B;5.0 學(xué)生[B;] 標準答案: 答案: 得分: [5] 試題分值: 該題選B,題目大意是“醫(yī)生決定給湯姆的胃開刀,切除腫瘤?!?/p>
open up:cut open切開;給?開刀
提示: 1.open up his stomach 給他的胃開刀
2.I want a famous doctor to open me up, because it’s safe.我想讓一個有名的大夫幫我開刀,因為這樣安全些。30.
第二篇:北郵網(wǎng)絡(luò)學(xué)院工程數(shù)學(xué)階段作業(yè)二
一、判斷題(共5道小題,共50.0分)
1.若線性方程組陣滿足Rank(A.正確 B.錯誤
知識點: 階段作業(yè)二 學(xué)生答[B;] 案: 得分: [10] 2.若向量組
中的線性相關(guān).
A.正確 B.錯誤
知識點: 階段作業(yè)二 學(xué)生答[A;] 案: 得分: [10] 3.若向量組A.正確 B.錯誤
知識點: 階段作業(yè)二 學(xué)生答[B;] 案:
線性相關(guān),則
一定可用
可用 的系數(shù)矩陣A和增廣矩)=Rank(A),則此方程組有唯一解.
試題分
10.0
值:
線性表示,則
試題分
10.0
值:
線性表示. 得分: [10] 4.若與A.正確 B.錯誤
知識點: 階段作業(yè)二 學(xué)生答[A;] 案: 得分: [10] 5.若存在線性無關(guān).
A.正確 B.錯誤
知識點: 階段作業(yè)二 學(xué)生答[B;] 案: 得分: [10] 6.試題分
10.0
值:
是向量組
等價. 的一個極大無關(guān)組,試題分
10.0
值:
使式子成立,則向量組
試題分
10.0
值:
二、單項選擇題(共5道小題,共50.0分)
1.(錯誤)若線性方程組陣滿足Rank(的系數(shù)矩陣A和增廣矩)=Rank(A)= n,則此方程組().
A.無解
B.有唯一解 C.有無窮多解
D.不能確定是否有解 知識點: 階段作業(yè)二 學(xué)生答[C;] 案: 得分: [0] 2.(錯誤)
試題分
10.0
值: 當k =()時,線性方程組A.0或1 B.1或-1 C.-1或-3 D.-1或3 知識點: 階段作業(yè)二 學(xué)生答[A;] 案: 得分: [0]
有非零解.
試題分
10.0
值: 3.設(shè)向量組,則實數(shù)t()時,線性無關(guān). A.≠-3 B.≠-2 C.=-2 D.=-3 知識點: 階段作業(yè)二 學(xué)生答案: [B;]
得分: [10] 試題分
值:
10.0 4.設(shè)向量,,則向量 ?可由向量
線性表示的表達式為
().A.B.C.D.知識點: 階段作業(yè)二 學(xué)生答案: [B;]
得分: [10] 試題分
值:
10.0
5.設(shè)矩陣的行向量組,線性無關(guān),則
(A.0 B.1 C.2 ,).
D.3 知識點: 階段作業(yè)二 學(xué)生答[D;] 案: 得分: [10] 6.試題分
10.0
值:
第三篇:北郵網(wǎng)絡(luò)學(xué)院工程數(shù)學(xué)階段作業(yè)四
一、判斷題(共5道小題,共50.0分)
1.設(shè)隨機變量X與Y獨立,則A.正確 B.錯誤
知識點: 階段作業(yè)四 學(xué)生答[B;] 案: 得分: [10] 2.設(shè)A.正確 B.錯誤
知識點: 階段作業(yè)四 學(xué)生答[A;] 案: 得分: [10]
3.設(shè)隨機變量X與Y獨立,則X與Y的相關(guān)系數(shù)A.正確 B.錯誤
知識點: 階段作業(yè)四 學(xué)生答[A;] 案: 得分: [10]
.,則,.
.
試題分
10.0
值:
試題分
10.0
值:
試題分
10.0
值: 4.設(shè)(X,Y)的概率密度A.正確,則常數(shù). B.錯誤
知識點: 階段作業(yè)四 學(xué)生答[A;] 案: 得分: [10] 5.(錯誤)
試題分
10.0
值: 設(shè)(X,Y)的概率密度為獨立.
A.正確 B.錯誤
知識點: 階段作業(yè)四 學(xué)生答[A;] 案: 得分: [0],則X與Y相互
試題分
10.0
值:
二、單項選擇題(共5道小題,共50.0分)
1.設(shè)X與Y的相關(guān)系數(shù)差,,則X與Y的協(xié)方().
A.-7.2 B.-1.8 C.-1.2 D.-0.18 知識點: 階段作業(yè)四 學(xué)生答[C;] 案: 得分: [10]
試題分
10.0
值: 2.設(shè)隨機變量X ~U[1,3],則().
A.B.C.D.知識點: 階段作業(yè)四 學(xué)生答[A;] 案: 得分: [10] 3.(錯誤)設(shè),如果,則X的分布列
試題分
10.0
值:().
A.B.C.D.知識點: 階段作業(yè)四 學(xué)生答[C;] 案: 得分: [0]
試題分
10.0
值: 4.設(shè)隨機變量X的概率密度為().
A.B.C.D.知識點: 階段作業(yè)四 學(xué)生答案: [B;]
得分: [10] 試題分
值:
5.設(shè)隨機變量X的分布列為
則().
A.1.7 B.2.3 C.-2.3 D.-1.7 知識點: 階段作業(yè)四 學(xué)生答案: [A;],則D(X)=
10.0
得分: [10]
試題分
10.0
值:
第四篇:2015北郵遠程教育大學(xué)英語階段2作業(yè)
一、閱讀理解(共1道小題,共25.0分)
1.One day in 1965, when I was a library worker at school, a teacher came to me.She had a student who finished his work before all the others and needed something more difficult for him to do.“Could you help me in the library?” she asked.I said, “Send him along.”
Soon, a golden-haired boy appeared.“Do you have a job for me?” he asked.I told him about a system for sorting books.He picked up the idea immediately.Then I showed him some cards for some unreturned books that though had been returned but not recorded.Maybe some books were put on wrong places.He said, “Is it a kind of a detective job?” I answered yes, and then began his work.He had found three books with wrong card by the time his teacher opened the door and said, “Time for rest!” he argued for finishing the finding job, but the teacher won.The next morning, he arrived early, “I want to finish these books,” he said.At the end of the day, when he asked to work with me more often, it was easy for me to say yes.After a few weeks I found a note on my desk, inviting me to dinner at the boy’s home.At the end of a pleasant evening, his mother declared that the family would be moving to another school area.Her son’s first concern, she said, was leaving the library.“Who will find the lost books?” he asked.When the time came, it was hard to say goodbye.Though at the beginning he had seemed an ordinary boy, his strong feeling of interest had made him different.Do you know who he is? This boy became a great man of the information age: Bill Gates.2.1.Why did the teacher go to the library to find a job for Bill Gates?
2.1.2.3.4.Because the teacher found the librarian quite busy.Because Bill Gates wanted to find a job.Because Bill Gates finished his study quickly and had more free time than the others.Because the library needed a new worker.3.What do you know from the passage?
4.1.2.3.4.Library work was very difficult for Bill Gates.Bill Gates did his job without any difficulty.The librarian was too busy to have a rest.His mother hoped that Bill Gates would stay for his job.1.The sentence “He picked up the idea immediately” means that_____.2.1.2.3.4.he learned that system quickly he collected that system quickly he lifted up that system quickly he improved that system quickly 1.What was Bill Gates expected to do in the library?
2.1.2.3.4.Finding the lost cards.Learning the system.Helping the worker with everything in the library.Finding books with wrong cards.1.How did Bill Gates feel when his family would move to another school area?
2.1.2.3.4.Sad.Pleasant.Worried.Interested.試題分值:25.0
得分:[5, 5, 5, 5, 5] 提示:[1]C.細節(jié)題。本題問“為何那位老師要去圖書館給Bill Gates找工作?”中心詞是“the teacher”和“the library”。答案在第一段的第二句,該句大意是“She had a student who finished his work before all the others and needed something more difficult for him to do.這名老師有一個學(xué)生,這個學(xué)生比別的學(xué)生提前完成功課,需要找一些難一點的事情來做?!睋?jù)此可知答案是C。
[2]B.中心思想題。本題問“你從文章中可以得知什么?”解決這種題目,我們首先要瀏覽一下選項的大意。A的意思是“對Bill Gates來說,圖書館的工作太難了?!盉的意思是“Bill Gates毫不困難地就完成了圖書館的工作?!盋的意思是“那名圖書管理員太忙了,都沒有時間休息?!盌的意思是“Bill Gates的母親希望他能夠留下來繼續(xù)做這份工作?!苯又?,我們要對每一個選項進行判斷。第二段的第四句話告訴我們,Bill Gates很快就領(lǐng)會了那位圖書管理員的意思。據(jù)此可見A是錯誤的,B是正確的。文章并沒有說那名圖書管理員忙得都沒法休息,所以C是錯誤的。文章的倒數(shù)第二段告訴我們,Bill Gates一家都要搬到外地,Bill Gates的媽媽并沒有要求兒子獨自留下來。據(jù)此可知D也是錯誤的。
[3]A.句義理解題。本題問我們“He picked up the idea immediately ”這句話是什么意思。A的意思是“他快速的學(xué)會了圖書館的系統(tǒng)?!盉的意思是“他快速的收集了圖書館的系統(tǒng)?!盋的意思是“他快速地舉起了圖書館的系統(tǒng)?!盌的意思是“他快速地改善了圖書館的系統(tǒng)?!?根據(jù)上面第二題的解釋,我們已經(jīng)知道這個句子的意思是A。
[4]D.細節(jié)題。本題問“Bill Gates在圖書館里要做什么事情?”中心詞就是“the library”,經(jīng)過定位我們會發(fā)現(xiàn)答案在第二段。該段中間幾句大意是“我又給他看了一些未歸還書的書卡,其實這些書已經(jīng)還回來了,但是當時并沒有做記錄。也許其中一些被放在錯誤的地方了?!睋?jù)此,可知答案是D(Bill Gates要利用這些書卡找到那些書。)
[5]C.細節(jié)題。本題問“Bill Gates對于自己家要搬到另一個校區(qū)有什么感受?”中心詞是“another school area”。答案在倒數(shù)第二段,該段大意是“幾周之后,我在辦公桌上發(fā)現(xiàn)了一張紙條,孩子一家邀請我去共進晚餐。在共度了一個美好夜晚之后,孩子的母親告訴我說他們一家將會搬到另一個校區(qū)。她說孩子最關(guān)心的就是要離開圖書館了。孩子會問,‘誰來找那些丟失的書呢?’分手時,我們真的是難舍難分。雖然在開始的時候,這個孩子似乎很平常,但是他做事情的那種強烈的興趣使得他與眾不同?!睋?jù)此可見Bill Gates的感覺是C(擔憂的)。
二、單項選擇題(共15道小題,共75.0分)
1.Trying to make some money before entering university,the author _________ a teaching job.2.1.2.3.4.applies to applies for demands for asks for
知識點: 第一部分 學(xué)生答[B;] 案: 得分: [5]
標準答
B;
案:
試題分
5.0
值: 提示: 該題選B,題目大意是“進入大學(xué)之前,盡力去攢一些錢。作者申請了一個教書職業(yè)?!?apply for:請求得到
1.He applied for the job.他申請取得這份工作。
2.I want to apply for the scholarship of this school.我想申請這所學(xué)校的獎學(xué)金。注:apply for與apply to的區(qū)別
apply for 的賓語在內(nèi)容上應(yīng)當是希望獲得的事物,例如獎金(reward),簽證(visa),貸款(loan, credit), apply to的賓語在內(nèi)容上則應(yīng)當是對之作出申請的個人或機構(gòu),例如大學(xué)(university, college)。apply to 后接人,表示“向誰申請”。
We applied to them for help.我們向他們求援。
apply sth to sth 是指把某某物應(yīng)用在某某上,比如說:
We can apply this new technology to our new product 我們能把這項新技術(shù)用在我們的新產(chǎn)品上。
3.(錯誤)He looked at me with _________ of surprised disapproval.4.1.2.3.4.a looking
an appearance a feature an air
知識點: 第一部分 學(xué)生答[B;] 案: 得分: 提示: [0]
標準答
D;
案:
試題分
5.0
值:
該題選D,題目大意是“他帶著一種吃驚的、不以為然的神態(tài)看著我。” air:名詞 n.1.空氣;大氣
Better let in some fresh air.最好放些新鮮空氣進來。2.天空,空中
The air was full of butterflies.天空中飛舞著許許多多蝴蝶。3.樣子,神態(tài)
He came into the room with an air of importance.他帶著一副了不起的神情走進室內(nèi)。4.氣氛
There was an air of mystery in the house.屋內(nèi)有種神秘的氣氛。
1.I arrived on a hot June morning _________ depressed _________ feel nervous.2.1.2.3.4.too...to so...that as...as too...that
知識點: 第一部分 學(xué)生答[A;] 案: 得分: [5]
標準答
A;
案:
試題分
5.0
值:
提示: 該題選A,題目大意是“我在六月一個炎熱的上午到了那兒,因為心情非常沮喪,竟不感到緊張了?!?/p>
too...to:“太??以至于不能??”(否定句型)
1.The boy is too young to go to school.這個男孩太小了,還不能上學(xué)。
2.She runs too slow to catch up with me. 她跑得太慢追不上我。
3.I′m too busy to write to my family often.我太忙而不能經(jīng)常跟家里寫信。4.I love you too much to leave you for a minute.我太愛你,一刻也離不開你。
1.It _________an awkward journey.2.1.2.3.4.tested verified proved turned
知識點: 第一部分 學(xué)生答[C;] 案: 得分: [5]
標準答
C;
案:
試題分
5.0
值:
提示: 該題選C,題目大意是“這上路去那兒原來還真麻煩?!?/p>
prove:及物動詞 vt.1.證明,證實
I′ll prove to the world that he was right.我將向世人證明他是對的。
The lawyer proved the innocence of his client.律師證實了他的當事人的清白。2.表現(xiàn),顯示
She has proved herself unreliable.她的表現(xiàn)說明她靠不住
1.Before liberation, many laboring people were _________ food and clothes.2.1.2.3.4.enough of lack share of short of 知識點: 第二部分 學(xué)生答[D;] 案: 得分: [5]
標準答
D;
案:
試題分
5.0
值:
提示: 該題選D,題目大意是“解放前廣大勞動人民缺吃少穿?!?/p>
short of:①缺少,不是 ②達不到
③主要沒有??,只要不??
1.We’ll never stop short of goal.達不到目的,我們決不罷休。
2.Short of delay, well certainly finish the work in time.只要不耽擱,我們一定能按時完成任務(wù)。
3.Short of replacing hardware, you cannot recover from this situation.缺乏可替換硬件,將不能從這種情況中恢復(fù)。
1.He never did work ________ the solution.2.1.2.3.4.out with forth to
知識點: 第一部分 學(xué)生答[A;] 案: 得分: [5]
標準答
A;
案:
試題分
5.0
值:
提示: 該題選A,題目大意是“他從沒有說清這個原理?!?/p>
work out:固定詞組 ph.1.想出;制訂出;產(chǎn)生出
work out a program 制訂計劃 2.解決;確定
Can you work out on the map where we are now? 你能在地圖上找到我們現(xiàn)在所在的位置嗎?
1.When he came down to breakfast, he was ________ the pleasure of a new, great discover.2.1.2.3.4.full of filling
satisfied with beaming with
知識點: 第一部分 學(xué)生答[D;] 案: 得分: [5]
標準答
D;
案:
試題分
5.0
值:
提示: 該題選D,題目大意是“當他下樓來吃早餐時,他正因為一個新的大的發(fā)現(xiàn)而快樂?!?beam with:堆滿笑容,眉開眼笑
Upon hearing the good news he beamed with joy.一聽到這個好消息,他高興得 眉開眼笑。
1.He was the only person I knew who had come to ________with himself and the world around him.2.1.2.3.4.terms words relations
conversations
知識點: 第一部分 學(xué)生答[A;] 案: 得分: [5]
標準答
A;
案:
試題分
5.0
值: 提示: 該題選A,題目大意是“他是我認識的所有的這樣的人中的一個,他承認他自身的有限性并與他周圍的世界和平相處?!?come to turns with:accept something one does not want to accept達成協(xié)議;與?妥協(xié);和解;讓步
1.come to terms with the workers與工人達成妥協(xié)
2.He found it difficult to come to terms with his son’s death.他發(fā)現(xiàn)很難正視兒子已死去的現(xiàn)實。
3.It took John a long time to come to terms with the fact that he would no longer be able to go sailing again.過了相當長的一段時間,約翰才不得不承認這樣一個現(xiàn)實:他不能再去航海了。
1.This all__________ conceited and I guess it is----but a surgeon needs conceit.2.1.2.3.4.sound hears sounds listens
知識點: 第一部分 學(xué)生答[C;] 案: 得分: [5]
標準答
C;
案:
試題分
5.0
值:
提示: 該題選C,題目大意是“這些話聽上去很自負,而且我以為這的確是自負――但外科醫(yī)師就是需要這種自負?!?/p>
sound:不及物動詞 vi.聽起來,聽上去
The music sounds very pleasing to the ear.這音樂聽起來十分悅耳。
1.With my knowledge and experience,I knew any decision I' d made was __________to be a sound one.2.1.2.3.4.bind sound round bound
知識點: 第一部分 學(xué)生答[D;] 案: 得分: [5]
標準答
D;
案:
試題分
5.0
值:
提示: 該題選D,題目大意是“我知道,憑我的知識和經(jīng)驗,我做出的任何決定肯定都是穩(wěn)妥的?!?sound:形容詞 a.合理的,明智的
1.I acted on her sound advice.我按她的忠告去做了。
2.Give yourself a sound reason when making decisions.做決定之前要給自己一個合理的理由。
1.Once I had made a__________ decision,I no longer dwelt on it.2.1.2.3.4.considering considered thinking thought
知識點: 第一部分 學(xué)生答[B;] 案: 得分: 提示: [5]
標準答
B;
案:
試題分
5.0
值:
該題選B,題目大意是“我一旦經(jīng)過深思熟慮做出某個決定,就不再去多想它了?!?considered:考慮過的;經(jīng)過深思熟慮的 He hoped that the committee would think about his considered opinion.他希望委員會能考慮他經(jīng)過深思熟慮后提出的意見。
1.Computer is _________ storing millions of bits information.2.1.2.3.4.capable of convert to receive resort to
知識點: 第二部分 學(xué)生答[A;] 案: 得分: [5]
標準答
A;
案:
試題分
5.0
值:
提示: 該題選A,題目大意是“計算機能儲存數(shù)百萬條信息?!?/p>
capable of:有?能力的;有?本領(lǐng)的 1.Susan is capable of hard work.蘇珊能勝任艱苦的工作。
2.I want to be part of a team that′s capable of doing great things.我想成為球隊的一份子,共創(chuàng)大業(yè)。
3.At critical moments the engineer should be capable of facing all difficulties.在關(guān)鍵時刻,工程師應(yīng)該有能力面對一切困難。
1.The doctor suggested that Mike ___________ in hospital until he was fully recovered.2.1.staying 2.stay 3.stayed 4.was staying 知識點: 第二部分 學(xué)生答[B;] 案: 得分: [5]
標準答
B;
案:
試題分
5.0
值:
提示: 該題選B,題目大意是“醫(yī)生建議邁克繼續(xù)住院直到完全康復(fù)?!?suggest that...建議
注意:這是從句中用虛擬語氣,即:從句謂語形式是“(should)+ 動詞原形”,should多數(shù)情況可以省略,只留動詞原形。如:
1.I suggested that we(should)go home.我建議我們回家。
2.The dentist suggested that she(should)come another day.牙醫(yī)建議她改天再來。3.We suggested that he(should)go and make an apology to his teacher.我們建議他去向老師道歉。
4.She suggested that the class meeting(should)not be held on Saturday.她建議班會不要在星期六舉行。
1.During the interview, the coach said he was _________ on his team’s winning the game.2.1.2.3.4.failed unable confident dwell
知識點: 第二部分 學(xué)生答[C;] 案: 得分: 提示: [5]
標準答
C;
案:
試題分
5.0
值:
該題選C,題目大意是“在采訪過程中,教練說他很自信他的球隊能獲勝這場比賽?!?confident:形容詞 a.確信的;有信心的,自信的
1.He is quite confident that he will pass the examination.他很有信心通過考試。2.They are confident of success.他們有信心能夠成功。
3.He is confident of passing the examination.他有信心通過考試。
4.Patrick was confident of his ability to get work for himself.派屈克自信有能力為自己找到工作。
1.You must _________ the fact that you are no longer as strong as you were.2.1.2.3.4.live on live in live with live up
知識點: 第二部分 學(xué)生答[C;] 案: 得分: [5]
標準答
C;
案:
試題分
5.0
值:
提示: 解析:該題選C,題目大意是“你必須接受這樣的事實,即:你的身體已不如從前那么強壯了。” live with:accept(sth.unpleasant);to tolerate容忍;接受;學(xué)會適應(yīng) 1.The air pollution in our city is terrible, but we have to live with it.我們城市空氣污染的非常厲害,但我們還得忍著。
2.You must live with the fact that you’re no longer as rich as you were.Your family has come down in the world.你必須接受這樣的事實,你已不再富有,你已經(jīng)家道中落了。
第五篇:北郵網(wǎng)絡(luò)學(xué)院光釬通信階段作業(yè)四
一、單項選擇題(共5道小題,共100.0分)
1.階躍型光纖,若n1=1.5,相對折射指數(shù)差Δ=0.018,試計算:(1)纖芯與包層之間的臨界角θc=___________;(2)數(shù)值孔徑NA=___________。
A.79.110、0.28 B.79.110、0.54 C.11.890、0.28 D.11.890、0.28 知識點: 光纖計算 學(xué)生答[A;] 案: 得分: [20] 提示:
2.階躍型光纖中,已知纖芯折射率n1=1.51, n2=1.49,纖芯半徑a=4μm,工作波長λ=1.31 μm。計算可得(1)歸一化頻率V=__________;(2)每公里長度光纖的模式色散Δτ=__________秒。
A.6.78、6.54×10-11 B.6.78、6.54×10-8 C.4.67、6.54×10-11 D.4.67、6.54×10-8
知識點: 光纖計算 學(xué)生答[A;] 案: 得分: [20] 提示:
3.計算STM-1幀結(jié)構(gòu)中段開銷SOH的容量(速率)=__________Mb/s。
A.4.608 Kb/s B.4.608 Mb/s C.15.336 Kb/s D.15.336 Mb/s
標準答
A;
案:
試題分
20.0
值: 標準答
A;
案:
試題分
20.0
值: 知識點: SDH計算 學(xué)生答[B;] 案: 得分: [20] 提示:
4.有622.080Mbit/s速率的單模光纜傳輸系統(tǒng),應(yīng)用InGaAs-LD,其It<50mA,標稱波長為1310nm,光譜寬度為2nm。接收靈敏度為-28dBm, 動態(tài)范圍≥20dB。采用的光纜其固有損耗為0.3dB/km, 接頭損耗為0.1dB/km,光連接器(收、發(fā)各一個)衰減為1dB,光纖色散系數(shù)≤1.8ps/nm?km, 光纖富余度為0.1dB/km。若考慮1dB色散代價(ε取0.306),5dB設(shè)備富余度,則當損耗受限的最大中繼距離為40km時,系統(tǒng)所需的出纖功率為__________dBm;根據(jù)系統(tǒng)參數(shù),色散受限中繼距離為__________。
A.0.1、136.6km B.1、80km C.0、136.6km D.10、80km 知識點: 中繼距離計算 學(xué)生答[C;] 案: 得分: [20] 提示:
5.若一個2.5Gbit/s單模光纜通信系統(tǒng),其系統(tǒng)總體要求如下: 系統(tǒng)中采用的激光器為單縱摸激光器,其閾值電流小于50mA,激光器工作于1550nm.光脈沖譜線寬度Δλ
max
標準答
B;
案:
試題分
20.0
值:
標準答
C;
案:
試題分
20.0
值:
≤1.8nm。發(fā)送光功率PT=2.5dBm。如用高性能的光接收組件,可在BER=1×10-10條件下得到接收靈敏度PR=-38dBm,動態(tài)范圍D≥20dB。
若考慮光通道功率代價PP =1dB,光連接器衰減AC=1dB(發(fā)送和接收端各一個),光纖接頭損耗AS=0.1dB/km,光纖固有損耗α=0.23dB/km,光纖色散系數(shù)D≤2.2ps/(km?nm)取ME=3dB MC=0.1dB/km,頻率啁啾系數(shù)為3.2。試計算損耗受限中繼距離為__________,色散受限中繼距離為__________,則最大中繼距離為__________。
A.80km、74km、74km B.74km、67.5km、67.5km C.74km、67.5km、74km D.80km、675km、80km 知識點: 中繼距離計算 學(xué)生答案: [D;] 得分: [20] 提示:
標準答
案:
試題分
值:
D;
20.0