问题 填空题

2003年3月,中科院蒋锡夔院土和中科院上海有机化学所计国帧研究员因在有机分子簇集和自由基化学研究领域取得重大成果,而荣获国家自然科学一等奖。据悉,他们在研究过程中曾涉及如图所示的一种有机物,请根据所示化合物的结构简式回答问题:

(1)该化合物中,官能团①的名称是____,该化合物由____个氨基酸分子脱水形成的。

(2)上海有机化学研究所在我国氟化学理论研究和氟产品以及核化学工业等方面作出过重太贡献,如F46就是用四氟乙烯与全氟丙烯共聚得到的,若两种单体物质的量之比1:1,试写出这种高聚物的结构简式____________ 。

(3)已知三氟苯乙烯的分子式为C8H5F3,则它的异构体除了,还有另外五种是(三个氟均连在苯环上):_______________。

答案

(1)氨基; 4

(2)

(3)

名词解释
完形填空
When Dave was eighteen, he bought a secondhand car for 200 so that he could travel to and from work more__ than by bus. It worked quite well for a few years, but then it got so old, and it was costing him____much in repairs that he decided that he had better ____it.
He asked among his friends to see if anyone was particularly____to buy a cheap car, but they all knew that it was falling to pieces, so___of them had any desire to buy it. Dave's friend Sam saw that he was ____ when they met one evening, and said, “What's____, Dave?”
Dave told him, and Sam answered, “Well, what about advertising it in the paper? You may ___more for it that way than the cost of the advertisement!” Thinking that Sam's____was sensible(合理的),he put an advertisement in an evening paper, which read “For sale: small car,____ very little petrol, only two owners. Bargain at 50.”
For two days after the advertisement first appeared, there was no ____.But then on Saturday evening he had an enquiry(询问).A man rang up and said he would like to___ him about the car. “All right,” Dave said, feeling happy. He asked the man whether ten o'clock the next morning would be____or not. “Fine,” the man said, “and I'll____ my wife. We intend to go for a ride in it to ____ it.”
The next morning, at a quarter to ten, Dave parked the car in the square outside his front door, ____ to wait there for the people who had____ his advertisement. Even Dave had to ____that the car really looked like a wreck(残骸).Then, soon after he had got the car as clean____ it could be, a police car stopped just behind him and a policeman got out. He looked at Dave's car and then said, “Have you reported this ____ to us yet, sir?”
小题1:
A.directlyB.safelyC.properlyD.easily
小题2:
A.soB.suchC.veryD.too
小题3:
A.keepB.repairC.sellD.throw
小题4:
A.anxiousB.luckyC.ashamedD.generous
小题5:
A.someB.neitherC.noneD.most
小题6:
A.delightedB.upsetC.calmD.astonished
小题7:
A.onB.upC.itD.that
小题8:
A.learnB.missC.getD.find
小题9:
A.messageB.adviceC.requestD.description
小题10:
A.usesB.losesC.hasD.spends
小题11:
A.doubtB.helpC.troubleD.answer
小题12:
A.tellB.seeC.agreeD.call
小题13:
A.exact B.suitableC.earlyD.late
小题14:
A.followB.meetC.bringD.introduce
小题15:
A.recognizeB.gainC.admireD.test
小题16:
A.happeningB.meaningC.turningD.failing
小题17:
A.readB.insertedC.answeredD.placed
小题18:
A.forgetB.showC.disagreeD.admit
小题19:
A.asB.thatC.soD.such
小题20:
A.bargainB.saleC.accidentD.result