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1、2022年高考英语二轮复习 阅读理解联练（3）【xx高考英语湖北省襄阳市统考试题】 A single tumor（肿瘤）can be made up of many separate cancers needing different treatments, say researchers A team at the Institute of Cancer Research, London, has developed a new technique for measuring the diversity within a cancer They showed extraordinary di
2、fferences between cancerous cells and say traditional drugs may fail as they may be unable to kill all the mutated （突变）tissueExperts said the fmdings would have far-reaching effects for treatments A tumor starts as a single cell, which acquires mutations and eventually divides uncontrollablyBut that
3、 is not the end of the process Cancerous cells continue to mutate and bee more aggressive, move round the body and resist drugs This process is disordered and results in a diverse tumor containing cancerous cells that have mutated in different ways This has huge implications for medicine, researcher
4、 Prof Mel Greaves told the BBC His team at the Institute of Cancer Research investigated cancer diversity in five children with leukemiaThey pared mutations in individual cancerous cells with a known database of mutationsTheir results, published in the journal Genome Research, showed patients had be
5、tween 2 and 10 genetically distinct leukemiaProf Greaves said:Every patient doesnt have one cancer, they have multiple cancers This is really a technical advance to get at this extraordinary plex diversity; it helps explain why we have such difficulty with advanced diseases Scientists pare cancer di
6、versity to a tree The initial mutations the trunk will be mon to all cancer cells But then the tumor branches out It means a treatment that targets one branch or sub-clone of the cancer might slow the disease, but they will never stop it Prof Charles Swanton, who researches diversity at the Universi
7、ty College London Cancer Institute, told the BBC:We call it pruning（修剪） the branches not cutting down the tree; treatment will remove some of the sub-clones, but cutting down the tree is hard to do The bottom line is that we need to understand cancer diversity to limit further adaptations, reduce th
8、e pace of evolution and prolong the activity of drugs67 Why do the traditional drugs have no effects on treatment of cancer？ A They are worsening the condition B They are unable to kill the constantly changing cancerous cells C It takes a long time for them to have effects D They are not powerful en
9、ough68 From paragraph 3, we can know that A mutation takes place in body in order B the process of mutation es to an end soon C the mutations are out of control eventuaily D cancerous cells mutate in the same way69 Scientists pare cancer diversity to a tree because A cancers develop quickly just lik
10、e a tree B treating cancers is as difficult as cutting down a tree C tumor needs nutrition when mutating D new tumor will e out during the mutating process70 The passage mainly talks about A the tumor is constantly mutating in different ways B cancer is impossible to treat C a new drug for cancer wi
11、ll be on sale D why cancers resist drugs【参考答案】67-70：BCDA【xx高考英语湖北省武昌区调研试题】A阅读下列短文，从每篇短文后所给各题的四个选叭A、B、c和 D）中，选出最佳选项，并在答题卡上将该项涂黑。At a recent visit to the beautiful Keukenhof flower gardens in Holland, I learned about the practice of toppingAs flowers grow, sometimes the growers cut off the tops of the
12、 flowers, which they believe causes the plants to invest more energy into flower growth and less into seed productionThe expected result is flower buds that will produce higher quality flowers This is the same with personal growthSometimes when we produce first results in a certain area, it can be h
13、elpful to cut them off and throw them awayThis can free up energy for a stronger attempt elsewhere instead of settling into the fort zone of satisfaction with the old results After running my puter games business for 10 years and generating satisfying results with it, I decided to drop it and leave
14、that field behindThis freed up my energy to focus on my personal development writing and speaking If Id kept running the old business, this would have meant less energy to invest in my new path It can be difficult to choose the topping approach because youre taking something thats already reasonably
15、 satisfying and cutting it out of your life, in the hopes that something even better will grow in its place Do you want to settle where you are right now? If so, then topping is unnecessary But if youd like to do better and believe you have a good shot at improvement, just like the flower growers at Keukenhof, then topping is a sensible practiceTo free up time and energy for future growth in new directions, you have to drop the merely satisfactoryThis gives you a shot at the truly beautiful Stepping outside of your fort zone is by definition
