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31．查理·史密斯去年去了法国，他的妻子是我的老师。
Charles Smith，__________________________________，went to France last year.
32．这本小说很动人，我已经读了三遍。
This novel，____________________________，is very touching.
33．众所周知，棒球在美国很流行。
__________________________________________，beseball is very popular in America.
34．他是一个学识渊博的老师，从他那儿可以学到许多东西。
He is a teacher of much knowledge，__________________________________.
35．不要靠近那座房子，它的屋顶正在维修。
Don’t get close to that house，________________________________________________________________________.
查看习题详情和答案>>Five cloned pigs，whose organs are much less likely to be rejected(排斥) by a patient，have been born in the U．S.
More than 62,000 people in the U．S. alone are waiting to ____ donated hearts，lungs and so on.The number of human donors falls far short of ____.Pig organs are of a(n) ____ size to human organs，and some scientists hope they might be used to help meet the ____.But previous attempts to transplant pig tissue into humans have ____.
The five pigs ____ a gene that adds a sugar to the surface of pig cells.The sugar would ____ immune(免疫的) rejection of the tissue.“This advance provides a near?time ____ for overcoming the problem that there is not enough human organs for transplants，”says an expert.“This is the ____ gene for overcoming the ____ stage of rejection.”
____，scientists warn that much more work is necessary ____ organs from copies of the pigs could be transplanted into humans.Human genes will need to be added，to ____ rejection of the organ in the long term.There are also ____ that pig viruses could infect patients.
Cloning techniques were ____ to the production of the pigs.Genes can only be knocked out(去除) in a single cell.Cloning of these single cells then allowed the ____ of a whole animal in which the gene was knocked out in every cell.But the PPL researchers have ____ in knocking out only one copy of the gene.The team will now attempt to knock out both copies of the gene.
The team will also ____ tests to investigate whether a virus from the pigs could infect human cells.“Although a lot of the work is very ____，we’re still very far off being able to grow an organ，” says Julia，who is working on this project and quite ____ to creating similar knock?out pigs with researchers at the University of Missouri.
1.A.exchange? B．check
C．possess? D．receive
2.A.discussion? B．demand
C．doubt? D．distance
3.A.beneficial? B．identical
C．similar? D．certain
4.A.shortage? B．condition
C．satisfaction? D．argument
5.A.continued? B．failed
C．finished? D．paused
6.A.lack? B．include
C．make? D．change
7.A.leave? B．cause
C．block? D．destroy
8.A.supply? B．ambition
C．contribution? D．solution
9.A.only B．rare
C．key? D．safe
10.A.last? B．whole
C．next? D．early
11.A.However? B．Therefore
C．Besides? D．Finally
12.A.because? B．before
C．if? D．after
13.A.prevent B．ignore
C．judge? D．weaken
14.A.regrets? B．emotions
C．concerns? D．interests
15.A.simple? B．vital
C．unusual? D．basic
16.A.collection? B．application
C．reception? D．creation
17.A.delighted? B．succeeded
C．joined? D．believed
18.A.conduct? B．plan
C．design? D．study
19.A.perfect? B．strange
C．exciting? D．disappointing
20.A.opposed? B．used
C．devoted? D．suited
查看习题详情和答案>>
正计划选一个景点去过周末．阅读以下选项(A、B、C、D、E和F)中六个景点的介绍，选出符合个人个性特长的最佳选项。选项中有一项是多余选项。
1．Now Obama has been President of the USA．Rodney is very excited because his grandfather used to be a friend of Martin Luther King and Rosa Parks and devoted himself to the struggle of civil rights for black people in the USA．He wants very much to find a museum where he can learn more about their struggle．
2．Noticing Sandra has been very tired from weeks of hard work at her lessons, her father decides to take her for a relaxation visit to an entertainment place．Now Sandra is asked to pick out an attraction where her father can see some wonderful exhibits, while she herself can enjoy some splendid music．
3．As a hard－working student who will head for the major that has a lot to do with botany after he graduates from high school, Rachel hopes to find an attraction which offers him the knowledge of plants and the connection between plants and nature．
4．As an active and energetic student, Duane has a special interest in the great athletes, great champions and their achievements of his state．Therefore, he has a strong desire that he should find a wonderful place where he can feast his eyes by using the coming weekend．
5．Maybe greatly affected by his father who is a well－known scientist, Horace has shown a great gift for science．Now he has come up with an idea：Why not try to find a science centre where he himself can do some real scientific actions?
A
B
C
D
E
F
Mom went shopping in the afternoon the Spring Festival.
2.那家公司是由布莱克先生负责的.
That company is Mr.Black.
3.对你妈妈大叫是不礼貌的.
It's to shout at your mother.
4.现在孩子的生活比他们父母小时候优越.
Now children's life is their parents when they were young.
5.我们能够通过互联网获得所有的最新消息.
We can all the latest information through the Internet.
6.Jean人倒不错,但是她就是往往太唠叨了.
Jean is really nice.However,she talk too much.
7.当经过村庄时,一条狗袭击了我,咬到了我的腿.
Walking through the village,a dog me and bit me on the leg.
8.看到自己的学生在生活中很成功,总能让老师激动不已.
It always the teacher to see that his students succeed in life.
9.他们认为我的建议不好,和计划的目的不相吻合.
They don't think my suggestion is a good one,which they think isn't
the aims of the project.
10.Betty一直挥手直到她父亲坐的车看不到为止.
Betty waved until the bus her father took was .