25. I must go home now, _______ I have many exercises to _______.
A. for; do B. since; to be done C. since; doing D. for; to be done 26.What you are saying is not ____ to the question under discussion.Please think twice before you
make any suggestions.
A.strange on C.familiar D.relevant 27._____ troubles me most right now is____ I can’t remember where I have put my car keys.
A.That ;what B.What;that C.What;what D.That;that
23. ---It is high time that we _______ to school.
---If only the alarm clock _______!
A. should go; rung B. shall go; had rung
C. shall go; rung D. should go; had rung 24.With so many evidence against him he had to____ his errors openly.
A.refuse B.acknowlege C.declare D.recognize
22. John and Mary’s room _______ on fire. Many _______ help them put out the fire.
A. are; passer-bys B. is; passers-by C. is; passer-bys D. are; passers-by
第一节 单项填空(共15小题;每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
21.---It is reported that there is____ big breakthrough in the cancer treatment. ---If only my son could be brought back to ____ life! A.a; / B./; a C.the;the D.a;the
30.将一个细胞中的磷脂成分全部提取出来,将其在空气-水界面上铺成单分子层,结果测得单分子层的表面积相当于原来细胞膜表面积的两倍。下列细胞实验与此结果最相符的是 ( )
A.人的肝细胞 B.蛙的红细胞
C.洋葱鳞片叶表皮细胞 D.大肠杆菌细胞
2009-2010学年度第二学期莲塘一中期末终结性测试卷
29.比较某哺W#W$W%.K**S*&5^U乳动物的胰腺细胞、神经细胞、浆细胞,三者( )
A.细胞核中DNA含量差别较大 B.细胞中mRNA、蛋白质种类相同
C.细胞中细胞器的种类差别较大 D.都具有分泌功能
28.在生物体的下列生理活动过程中,没有ADP生成的是( )
A.胰岛细胞分泌胰岛素 B.胃蛋白酶对蛋白质的分解
C.叶绿体内C5的生成 D.番茄根细胞对Mg2+的吸收
27.玉米根尖分生区细胞会不停地分裂生长。此时这些细胞 ( )
A.两组中心粒会分别移向两极 B.有K+穿过原生质层进入大液泡
C.染色体数目不断减少 D.保持着全能性
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