1.选择题- (共7题)
1.虫草中的超氧化物歧化酶（PSSOD）具有抗衰老作用．研究人员培育了能合成PSSOD的转基因酵母菌．请结合如图回答问题：
注：Hind III和ApaL I是两种限制酶，箭头表示酶的切割位置．
2.虫草中的超氧化物歧化酶（PSSOD）具有抗衰老作用．研究人员培育了能合成PSSOD的转基因酵母菌．请结合如图回答问题：
注：Hind III和ApaL I是两种限制酶，箭头表示酶的切割位置．
6.甘蔗发霉时滋生的节菱孢霉菌能产生三硝基丙酸（3﹣NP），引起神经细胞中毒或凋亡．图甲表示突触结构，③表示兴奋性神经递质．图乙表示注射生理盐水配制的1ml3﹣NP（300μmol/L）后，小鼠纹状体细胞合成的与凋亡蛋白相关的mRNA（P53）的总含量．请回答：
2.单项选择- (共14题)
8.
— I watched the film you mentioned. Isn’t it cool?
— ______. It can’t be ______.
— ______. It can’t be ______.
| A．Exactly; worse | B．Frankly; better | C．Definitely; worse | D．Absolutely; better |
9.
Nelson Mandela, who was elected ______ president of South Africa in 1994, is generally regarded as ______ father of the country.
| A．the; the | B．/; the | C．/; / | D．the; / |
10.
The manager asked me to______ the report, because he didn't want to speak for a long time at the meeting.
| A．cut out | B．cut away | C．cut off | D．cut down |
11.
—The deadline is drawing, but I failed to challenge the task a third time.
— ______ my brother have a try?
— ______ my brother have a try?
| A．Will | B．May | C．Shall | D．Must |
12.
Experts insist that packets of cigarettes come with a health warning ______ to them.
A．be attached B. attach C. attached D. attaching
A．be attached B. attach C. attached D. attaching
13.
It is reported that the United States consumes ______ energy as the whole of Africa.
| A．as four times | B．four times much | C．four times much as | D．four times as much |
14.
Mr. Zhang once taught in a remote village in Anhui province as a volunteer, which was ______ only on foot.
| A．acceptable | B．accessible | C．available | D．appropriate |
15.
______ good service, the restaurant also offers different kinds of traditional Anhui dishes.
| A．Beside | B．Apart from | C．In addition | D．Except |
16.
— Darling, hand me the new suit. My coat may be a little casual for the lecture.
— Why bother? I think you can go______ you are.
— Why bother? I think you can go______ you are.
| A．where | B．as | C．like | D．that |
17.
— It’s my treat today. Is there anything particular you would like to have?
—______ you choose is fine with me.
—______ you choose is fine with me.
| A．Whatever | B．Which | C．Anything what | D．No matter what |
18.
— Why is the chemical plant closed?
— Because large quantities of waste water ______ into the Yangtze River.
— Because large quantities of waste water ______ into the Yangtze River.
| A．has been released | B．is being released |
| C．was released | D．have been released |
19.
Never before______ such a wonderful park, ______ I'd like to pay a visit again.
| A．had I seen; where | B．have I seen; which |
| C．have I seen; where | D．had I seen; which |
20.
Wherever he is, he makes ______ a rule to give his mother a call every day.
| A．him | B．this | C．that | D．It |
试卷分析
-
【1】题量占比
选择题:(7道)
单项选择:(14道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：12
7星难题：0
8星难题：2
9星难题：0