27. If you think that the illness might be serious, you should not going to the doctor.
A. put off B. set about C. hold back D. give away
26. Only ticket – holders were to the stadium for the concept given by Jay Chou, so many of his fans were turned away.
A. allowed B. asked C. agreed D. admitted
25. --- Jim managed to get into his house without the key. ?
---I don’t know. He might have asked someone for help.
A. What for B. Guess how C. So What D. Who knows
24. During your stay in Britain, you’ll face culture shock language problems.
A. as far as B. as long as C. as good as D. as well as
23. --- I try to memorize new words every day, but can only remember few of them.
--- That’s not surprising. Newly – learnt words are easily forgotten unless frequently
in communication.
A. used B. using C. to use D. be used
22. It took the early settlers more than 150 years to build up is now a modem city.
A. where B. which C. what D. that
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。
21. --- Let’s discuss the question raised last night, shall we?
--- There is no hurry for that. I for a conference.
A. headed B. was heading C. am heading D. have headed
31、(10分)某科研单位在调查湖水中细菌的污染情况时进行了实验。实验包括制备培养基、灭菌、接种及培养、菌落观察计数。
(1)培养基中含有蛋白胨、淀粉分别为细菌培养提供了___________________。对培养基进行灭菌,应该采用的方法是___________。接种时通常采用
方法,把聚集的菌种逐步分散到培养基的表面如果提高培养基中NaCl的浓度,可以用于筛选耐盐细菌,这种培养基被称为____________。
(2)该细菌所含的耐盐基因可通过酶切法获取,作为基因工程中的目的基因导入小麦中,其过程如右图所示。其中A为 ,耐盐基因的小麦细胞还应经过 ,在此过程中还将使用 两种植物激素,从而最终可获取含耐盐基因的小麦植株,当然这些小麦植株并不一定具有耐盐的特性,这是因为
。若在遗传过程中小麦植株丢失1条染色体,则不能产生正常配子而高度不育,则可用 处理幼芽,以便获得可育植株。
(3)图中C还可用于其他工程细菌中,若成功导入大肠杆菌内,则可能使大肠杆菌获得哪些特性?
贵州省晴隆一中2009年高中毕业班理科综合高考模拟试卷
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