题目
题型:不详难度:来源:
A.privilege | B.acquaintance | C.advantage | D.affection |
答案
解析
试题分析: 考察名词词义辨析。A特权;B熟悉的人或事;C优势;D热爱;句意:在现代社会里教育不应该被认为是一个特权。根据句意说明A正确。
核心考点
试题【Education should not be considered to be a(n) ______ in a modern society.A.privi】;主要考察你对数词等知识点的理解。[详细]
举一反三
A.express | B.confess | C.verify | D.acknowledge |
A.fit in | B.agree on | C.adjust to | D.settle in |
A.reflected | B.abandoned | C.donated | D.rented |
A.took up | B.saved up | C.kept up | D.drew up |
B. Principles of curing cancers.
C. It will take long to find perfect cures.
D. An important discovery in the research.
E. The causative factor of cancer is very clear.
F. The survival rate differs among patients with various cancers.
小题1:___________
“I have great confidence that by the end of the decade we’ll know in vast detail how cancer cells arise,” says microbiologist Robert Weinberg, an expert on cancer. “But,” he cautions, “some people have the idea that once one understands the causes, the cure will rapidly follow. Consider Pasteur. He discovered the causes of many kinds of infections, but it was fifty or sixty years before cures were available. ”
小题2:____________
This year, 50 percent of the 910,000 people who suffer from cancer will survive at least five years. In the year 2020, the National Cancer Institute estimates, that figure will be 75 percent. For some skin cancers, the five-year survival rate is as high as 90 percent. But other survival statistics are still discouraging—13 percent for lung cancer, and 2 percent for cancer of the pancreas (胰腺) .
小题3:___________
With as many as 120 varieties in existence, discovering how cancer works is not easy. The researchers made great progress in the early 1970s, when they discovered that oncogenes, which are cancer-causing genes, are inactive in normal cells. Anything from universe rays to radiation to diet may activate an inactive gene, but how remains unknown. If several oncogenes are driven into action, the cell, unable to turn them off, becomes cancerous.
小题4:____________
The exact process involved is still mysterious, but the likelihood that many cancers are initiated at the level of genes suggests that we will never prevent all cancers. “Changes are a normal part of the evolutionary process,” says oncologist William Hayward. Environmental factors can never be totally eliminated; as Hayward points out, “We can’t prepare a medicine against universe rays.”
小题5:____________
The prospects for cure, though still distant, are brighter. “First, we need to understand how the normal cell controls itself. Second, we have to determine whether there are a limited number of genes in cells, which are always responsible for at least part of the trouble. If we can understand how cancer works, we can reduce its action. ”
最新试题
- 1某市举办“×××演唱会”。演唱会结束后,税务人员向演唱会的举办单位及演唱者征收税收时,经纪人以演出亏本无税可缴为由拒绝缴
- 2选择填空。— ______? — It"s Tuesday today. [ ]A. What is today
- 3我国政府推行加碘盐,主要是为了避免人们因饮食中缺少碘而可能患上A.地方性甲状腺肿B.巨人症C.侏儒症D.糖尿病
- 4下图是输水管的切面,阴影部分是有水部分,其中水面宽16㎝,最深地方的高度是4㎝,求这个圆形切面的半径.
- 5作文:请以“等待”为题,写一篇不少于800字的文章,文体不限。
- 6氧气是人类赖以生存的重要物质之一.为了得到少量纯净的氧气,在实验室可以利用氯酸钾、二氧化锰等物质制取氧气,该反应的化学方
- 7如图所示,某学生用甲、乙两只不同量程的电流表测量电路中的电流,表针偏转角度一样,则 的量程大,灯
- 8阅读下列材料:材料一 郭沫若与范文澜都是著名的历史学家,但对于中国历史的分期问题有不同的看法。当时,有些学者要中央宣传部
- 9Li Ming speaks very good English ____ he were an English bo
- 10在观察水的沸腾实验中,当加热到水沸腾时,水中形成大量气泡,气泡上升过程中,在水面下的形状变化大致为图中的哪一种?____
热门考点
- 1— Can you spell it? — _____. [ ]A. Yes B. I
- 2如图所示为一质点从t=0开始由原点出发做直线运动的速度-时间图象,以下对该质点的说法正确的是( )A.在2~3s内,质
- 3诗文默写。 1.请默写宋朝王安石的《登飞来峰》。
- 4小敏、小刚、小明是同班同学。小敏喜欢通过阅读来学习,小刚觉得听别人讲更容易学到知识,而小明觉得自己动手的事情更容易记住。
- 5给最爱的他们安全感(15分)沈奇岚⑴每个孩子都被父母指责过不懂事,那句“都是为了你好”听过千遍万遍,“知道,知道,我都知
- 6将一条形磁铁从同一位置缓慢或迅速地插入闭合的螺线管中。则在这两个过程中,相同的物理量是:A.线圈的发热量B.感应电流C.
- 7读“北半球某地区海平面等压线”图,完成下列要求。(11分)小题1:A处的天气系统是_________,天气特点是____
- 8(1)数轴上表示4和1的两点之间的距离是_________;表示-3和2两点之间的距离是__________;一般地,数
- 9读下图回答问题。(13分)(1)请将图中数字所代表的大洲的名称填写在相应横线上。① ③
- 10已知a,b,c均为正数,且a+b+c=1.求证:(1+a)(1+b)(1+c)≥8(1-a)(1-b)(1-c).