【名词&注释】
基因工程(genetic engineering)、细胞壁(cell wall)、限制性(restriction)、单细胞(single cell)、有机体(organism)、有利于(beneficial to)、DNA连接酶(dna ligase)、美术馆(art gallery)、绝大多数(most)、无所畏惧(bold conviction)
[单选题]有些植物不开花也能结实，例如无花果。( )
A. 正确
B. 错误
查看答案&解析
举一反三：
[单选题]下列关于基因工程的叙述，错误的是
A. 目的基因和受体细胞均可来自动、植物或微生物
B. 限制性核算内切酶和DNA连接酶(dna ligase)是两类常用的工具酶
C. 人胰岛素原基因在大肠杆菌中表达的胰岛素原无生物活性
D. 载体上的抗性基因有利于筛选含重组DNA的细胞和促进目的基因的表达
[单选题]细菌是微小的单细胞原核有机体，有明显的细胞壁，绝大多数(most)细菌皆为异养。( )
A. 正确
B. 错误
[单选题]DLiverpool, my hometown, is a unique city. It is so unique that in 2004 it became a World Heritage (遗产) Site.
A. I recently returned to my home city and my first stop was at a museum on the River Mersey. Blanketed in mist (薄雾), Victorian architecture rose from the banks of the river, responded to the sounds of sea-birds, and appeared unbelievably charming. When I headed toward the centre, I found myself surrounded by buildings that mirror the best palaces of Europe. It is not hard to imagine why, on first seeing the city, most visitors would be overpowered by the beauty of the noble buildings, which are solid signs of Liverpool’s history.
B. As if stress its cultural role, Liverpool has more museums and galleries (美术馆(art gallery)) than most cities in Britain. At Walker Art Gallery, I was told that it has best collections of Victorian paintings in the world, and is the home of modern art in the north of England. However, culture is more than galleries. Liverpool offers many music events. As Britain’s No.1 music city, it has the biggest city music festival in Europe, and its musicians are famous all over the world. Liverpool is also well-known for its football and other sports events. Every year, the Mersey River Festival attracts thousands of visitors, madding the city a place of wonder.
C. As you would expect from such a city, there are restaurants serving food from around the world. When my trip was about to complete, I chose to rest my legs in Liverpool’s famous Philharmonic pub (酒馆). It is a monument to perfection, and a heritage attraction itself.
D. Being a World Heritage Site, my home city is certainly a place of “outstanding universal value”. It is a treasure house with plenty of secrets for the world to explore.
E. 68. Visitors who see the city for the first time would be deeply impressed by __________.
F. its charming banks
G. its famous museums
H. its wonderful palaces
I. its attractive buildings
[单选题]------ Shall we have our picnic tomorrow?-----______it doesn’t min.
A. Until
B. While
C. Once
D. If
[单选题]下列各组语句中，分别表明孟德“生存艰难”和“无所畏惧(bold conviction)”的一组是
A. 既为兵，不获如志
B. 惟山之深者往焉
C. 食其饼，既尽，取草根木实食之
D. 须臾奋跃，如将搏焉
E. 一日十病十愈
F. 德以不顾死，未尝为动
G. 至今往来诸山中，亦无他异能
H. 虽列于天地可也，曾何猛兽之足道哉
[单选题]
A. sooner
B. later
C. longer
D. earlier
[单选题]The questionnaire takes _______ ten to fifteen minutes to complete and can be used along with the assessment interview.
A. mainly
B. punctually
C. approximately
D. precisely
[单选题]It can be interred that without gravity .
A. buildings and other structures would float away
B. trees and buildings would not so easily fly off
C. something around your head would not float away
D. everything outside buildings would fly off into space
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