英语试题第31题 In recent years a new farming revolution has begun,

英语试题
第31题
In recent years a new farming revolution has begun,one that involves the manipulation of life at a (1)___ level — the gene.The study of genetics has (2)___ a new industry called biotechnology.As the name suggest,it incorporates biology (3)___ modem technology through such techniques as genetic engineering.Some of the new biotech companies specialize in agriculture and are working passionately to (4)___ seeds that give a high yield,that (5)___ diseases,drought and frost,and that reduce the need for (6)___ chemicals.If such goals could be achieved,it would be most (7)___.But some have raised concerns about genetically engineered crops.
In nature,genetic diversity is created within certain(8)___.A rose can be crossed with a different kind of rose,but a rose will never cross with a potato.Genetic engineering,(9)___ usually involves taking genes from one species and inserting them into another(10)___ to transfer a desired characteristic.This could mean,for example,selecting a gene which leads to the production of a chemical with anti-freeze (11)___ from an artic fish,and inserting it into a potato or strawberry to make it frost-resistant.(12)___ ,then,biotechnology allows humans to breach the genetic walls that separate species.
Like the green revolution,(13)___ some call,the gene revolution (14)___ to the problem of genetic uniformity—some say even more so (15)___ geneticists can employ techniques such (16)___ cloning and organ culture(培养),processes that produce perfectly (17)___ copies.Concerns about the erosion of biodiversity,therefore,remain.Genetically altered plants,however,raise new (18)___ ,such as the effects that they may have on us and the environment.“We are flying blindly into a new (19)___ of agricultural biotechnology with high hopes,few constraints,and little idea of the potential(20)___ ,” said science writer Jeremy Rifkin.
1A、 fundamentalB、governmentalC、mentalD、instrumental
2A、got along with B、given rise toC、come up withD、lived up to
3A、intoB、fromC、withD、for
4A、raiseB、experimentC、cultivateD、gather
5A、restrictB、resistC、reverseD、recur
6A、hostileB、uselessC、hopelessD、harmless
7A、beneficialB、disappointingC、lastingD、glooming
8A、linesB、limitsC、speciesD、ages
9A、after allB、on the other handC、in any caseD、as a result
10A、to the pointB、in no caseC、in an attempt D、with regards
11A、qualityB、superiorityC、priorityD、quantity
12A、In essenceB、In partC、In advanceD、In return
13 A、whatB、where C、asD、so
14 A、combineB、contributeC、commandD、 break
15
A、that
B、because
C、 if
D、when
16
A、like
B、for example
C、as
D、is
17
A、 resembling
B、alike
C、similar
D、 identical
18
A、issues
B、height
C、difficulties
D、goals
19
A、spot
B、era
C、deadline
D、scheme
20
A、navigation
B、mystery
C、outcome
D、destination

这是完形填空吗?可是想说,选项呢?