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
第一節(jié):?jiǎn)雾?xiàng)填空(共15小題,每小題1分,滿分15分)
從A、B、C、D四個(gè)選項(xiàng)中,選出可以填入空白處的最佳選項(xiàng)。
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)某科研單位在調(diào)查湖水中細(xì)菌的污染情況時(shí)進(jìn)行了實(shí)驗(yàn)。實(shí)驗(yàn)包括制備培養(yǎng)基、滅菌、接種及培養(yǎng)、菌落觀察計(jì)數(shù)。
(1)培養(yǎng)基中含有蛋白胨、淀粉分別為細(xì)菌培養(yǎng)提供了___________________。對(duì)培養(yǎng)基進(jìn)行滅菌,應(yīng)該采用的方法是___________。接種時(shí)通常采用
方法,把聚集的菌種逐步分散到培養(yǎng)基的表面如果提高培養(yǎng)基中NaCl的濃度,可以用于篩選耐鹽細(xì)菌,這種培養(yǎng)基被稱為____________。
(2)該細(xì)菌所含的耐鹽基因可通過酶切法獲取,作為基因工程中的目的基因?qū)胄←溨,其過程如右圖所示。其中A為 ,耐鹽基因的小麥細(xì)胞還應(yīng)經(jīng)過 ,在此過程中還將使用 兩種植物激素,從而最終可獲取含耐鹽基因的小麥植株,當(dāng)然這些小麥植株并不一定具有耐鹽的特性,這是因?yàn)?u>
。若在遺傳過程中小麥植株丟失1條染色體,則不能產(chǎn)生正常配子而高度不育,則可用 處理幼芽,以便獲得可育植株。
(3)圖中C還可用于其他工程細(xì)菌中,若成功導(dǎo)入大腸桿菌內(nèi),則可能使大腸桿菌獲得哪些特性?
貴州省晴隆一中2009年高中畢業(yè)班理科綜合高考模擬試卷
國(guó)際學(xué)校優(yōu)選 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com