25. --Excuse me. Can I ask you some personal questions?
--Sure. ____.
A. Forget it B. Fire away C. No way D. It just depends
24. Some freshmen are finding it hard to ____ the new environment in the university.
A.adapt to B. apply to C. appeal to D. attach to
23. ____ to the surprise of the teachers, the naughty boy turned out to be the person who saved the dying girl.
A. Great B. Very C. Much D. Rather
22. People used to accept a medieval world view in which human life was of little value ____ with the greatness of God.
A. compare B. to compare C. compared D. comparing
第一节 单项填空(共15小题;每小题1分,共15分)
从每题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
21. The aim of the project is ____ patients to be more independent.
A. help B. to help C. helping D. helped
47.(10分)
(1)重力作用很弱 一定的流动性 (2)电刺激 脱分化 再分化 多(或四)
(3)克服了远缘杂交不亲和的障碍 否 (4)不一定 如果“太空烟草”为纯合子,无性繁殖和有性繁殖都能稳定遗传;如果为杂合子,无性繁殖能稳定遗传,有性繁殖会出现性状分离。培养过程中也可能会发生基因突变。
46.(5分)
(1) ①无性 ② B ③胚胎移植 ④高度分化的动物细胞具有全能性;卵细胞质具有使高度分化的动物细胞去分化的能力。
(2)ABCD
45.(4分)
(1)二氧化碳 氧气 (2)物质的循环利用和能量的高效利用 (3)A