题目内容
7.Rising levels of carbon dioxide in the atmosphere are a major cause of climate change,and now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades.
"We've been going to the same spot in the Pacific Ocean,and we try and characterize long-term change in the open ocean environment.And one of the key things that we measure is CO2 levels.And we've b een able to record this increasing quantity of atmospheric CO2 into the ocean."
Scientists expected that as atmospheric CO2 increased,more and more of the carbon dioxide would be absorbed into the ocean,affecting the chemical balance of the sea water,with a potentially harmful impact on shellfish and coral in particular.
"As carbon dioxide dissolves in the water,or seawater in this case,it forms a weak acid (酸),carbonic acid,"Dore explains."And therefore,as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater,it drives the pH down,and makes it more acidic."
The seawater Dore and his colleagues have analyzed confirms what the theory predicts.
The effect was particular striking at about 250 meters down,and again at 500 meters.Dore and his colleagues came up with two possible explanations.It could be that surface water picked up CO2 and then moved to those depths.Or there could be a biological explanation."It's important to realize that the oceans are really becoming acidic.And it can have negative impacts on a whole variety of sea life from fish to coral.It's potentially catastrophic."
29.What can be the best title of the passage?A
A.Sea Life Facing Danger
B.Scientist Researching Seawater
C.Oceans Becoming More Acidic
D.Climate Change Affecting Seawater
30.Which of the following shows the process of the impact of atmospheric CO2 on sea life?B
a.Sea life is endangered.
b.CO2 goes into the surface water.
c.The ocean chemistry is affected.
d.CO2 decreases the pH and makes the seawater more acidic.
e.CO2 levels in the atmosphere go up.
A.a→b→c→d→e B.e→b→c→d→a
C.a→e→c→d→b D.e→d→c→b→a
31.Scientist Robert Dore came to the conclusion based onA.
A.his research and analysis B.the expectation of other scientists
C.some former theory D.a major cause of climate change
32.What does the passage want to tell us most?D
A.It takes time to make a scientific study.
B.Atmospheric CO2 is doing harm to sea life.
C.Robert Dore is a committed and serious scientist.
D.Measures should be taken to prevent the potential catastrophe.
分析 这篇文章主要讲了二氧化碳的排放引起海水化学物质的改变从而是海洋动物受到危险.
解答 29.A 主旨大意题:从第一段的句子:Rising levels of carbon dioxide in the atmosphere are a major cause of climate change,atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.可知文章主要讲的是海洋生物正在遭遇危险.故选A
30.B 排序题 根据第三、四段"as atmosphere CO2 increased,more and more of the carbon dioxide would be absorbed into the ocean,affecting the chemical balance of the sea water…As carbon dioxide dissolves in the water or seawater in this case,it forms a weak acid,carbonic acid,it drives the pH down,and makes it more acidic"可知,先是大气中的二氧化碳含量增加,排除A、C;接着是二氧化碳被海水吸收,影响海水的化学平衡,随着酸性物质的形成,海水的PH值下降,给海洋生态环境带来威胁,故选B.
31.A 细节题理解.从第二段和第六段Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades…The seawater samples Dore and his colleagues have analyzed confirm what the theory predicts."可知科学家 Robert Dore 是根据自己的研究和分析得出结论的.所以答案是A
32.D 推理判断题.文章最后一段主要是告诉我们现在海洋的状态,对整个海洋生物有着不好的影响,存在可能的危险.所以可以推断文章想要告诉我们,必须采取措施,防止灾难发生.故选择D.
点评 本文是一个科教类阅读理解,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.
The poverty(贫困) was(27)Cthan anything my young companions had ever imagined.Back in the hotel,an air of sadness settled over the group.Many(28)B and cried.Spending time in this (29)A moves a person to care about humanity.
That evening,our group spent hours talking about what we had(30)C.Gently,I encouraged everyone to talk about the difficult(31)Athat day's discoveries had inspired.Sitting together(32)D a circle as everyone had a chance to speak,we all began to realize that(33)C of us was alone in our struggle to cope with our reactions.
Based on my(34)A in poverty-stricken areas,I suggested that(35)B the emotions we had were painful,they could also be important in helping us to move forward.We all(36)D that we had seen things that should never be allowed to happen.(37)C,what could we do about it?Together,we began to brainstorm ways we could help to ease the(38)B we had seen.As I encouraged group members to focus on(39)C they could do,a sense of determination(40)Athe previous sadness.Instead of despair,these young people began to feel a call to action.
21.A.put up with | B.got back to | C.looked back on | D.made up for |
22.A.now that | B.so that | C.as if | D.even if |
23.A.puzzled | B.annoyed | C.embarrassed | D.shocked |
24.A.marching | B.running | C.passing | D.moving |
25.A.entire | B.normal | C.average | D.general |
26.A.beyond | B.with | C.till | D.for |
27.A.stronger | B.deeper | C.worse | D.less |
28.A.gave up | B.broke down | C.set off | D.held on |
29.A.environment | B.hotel | C.house | D.background |
30.A.inspected | B.attempted | C.witnessed | D.challenged |
31.A.feelings | B.decisions | C.thoughts | D.impressions |
32.A.along | B.around | C.by | D.in |
33.A.neither | B.either | C.none | D.each |
34.A.experiences | B.schedules | C.data | D.position |
35.A.once | B.while | C.since | D.unless |
36.A.supposed | B.advised | C.confirmed | D.agreed |
37.A.Surely | B.Rather | C.Now | D.Indeed |
38.A.burden | B.suffering | C.anxiety | D.difficulty |
39.A.how | B.where | C.what | D.when |
40.A.replaced | B.changed | C.covered | D.improved |
(28)C walking,he ran into a young couple talking to each other in a foreign language."Excuse me!Could help us please?"the woman called to him in strange English."We are tourist,lost.Need‘Dolphin'hotel.You know where is?"She was courageous as she spoke a (29)D language.
"I'm sorry,I don't know.I'm in a hurry,"Jack said,and moved off.He was so upset about his problems that he (30)B without thinking.Having walked about 100feet,he felt he was wrong and (31)A back.Luckily,the couple were (32)C there.He walked up to them."I remembered where the‘Dolphin'hotel is.I'm sorry,I just got (33)B:there are hundreds of hotels in New York.It's not far from here.you may (34)B there.Just go straight to that crossroad,then turn to the left,and you will see a white-blue building.That will be the (35)Ayou're looking for."
The couple thanked him,and Jack (36)C lightly this time.But when he turned his back,he saw that the couple didn't move,and the look on their faces was the (37)D Maybe I was talking too (38)C,and they couldn't understand me well enough,he thought.All of a sudden,he felt that he could do something more important than sit in his office all day long.He knew that he couldn't (39)D these young people behind:they couldn't possibly get to the hotel by themselves.He walked up to them once again.They looked at him in surprise."I could (40)B you to the hotel,if you still need my help,"Jack said.For the first time since the beginning of this month,he felt relaxed.
26.A.plan | B.talk | C.trip | D.work |
27.A.decided | B.agreed | C.remembered | D.offered |
28.A.If | B.Though | C.While | D.Once |
29.A.similar | B.special | C.modern | D.foreign |
30.A.calmed | B.lied | C.shocked | D.begged |
31.A.turned | B.gave | C.sent | D.put |
32.A.already | B.almost | C.still | D.even |
33.A.amazed | B.confused | C.bored | D.tired |
34.A.cycle | B.walk | C.point | D.look |
35.A.hotel | B.couple | C.tourist | D.bus |
36.A.answered | B.escaped | C.left | D.passed |
37.A.new | B.good | C.true | D.same |
38.A.strangely | B.loudly | C.quickly | D.nervously |
39.A.get | B.fall | C.stay | D.leave |
40.A.move | B.guide | C.follow | D.introduce |
On any given day,countless numbers of us get out of bed and (38)B to begin to change a given behavior"today."Whether it be exercising more,drinking less,managing time (39)B or some other change in a negative behavior,we start out with high (40)C.In a short time,however,a vast majority of people fail and are soon doing (41)D it was they thought they shouldn't be doing.
After considerable research,some researchers believe that behavior changes usually do not (42)Aif they start with the change itself.(43)C,they believe that we must (44)Ca series of"stages"to adequately prepare ourselves for that (45)Dchange.Once you have analyzed all the factors that (46)Bwhat you do,you must decide which behavior-change technique will work best for you.
According to the psychologist Albert Ellis,most(47)Aproblems and related behaviors arise from irrational (不理性的) statements that people make to (48)Dwhen events in their lives are different from what they would like them to be.For example,suppose after doing (49)Aon an exam,you say to yourself,"I can not believe I failed that easy exam.Iam so stupid."By changing this irrational"catastrophic"self-talk into rational,(50)Astatements about what is really going on,you can increase the (51)Dthat positive behaviors will occur.
Positive self-talk might be (52)Bas follows:"I really didn't study enough for the exam.I just need to prepare for the next (53)B".
Such self-talk will help you to recover quickly from (54)Cand take positive steps to correct the situation.Some other technique like purposefully (55)Cor stopping negative thoughts and refusing to dwell on (沉湎于) negative images can also spare you wasted energy,time and emotional resources and move on to positive changes.
36.A.decline | B.remain | C.disappear | D.improve |
37.A.substitute | B.cancel | C.find | D.ignore |
38.A.refuse | B.determine | C.hesitate | D.advocate |
39.A.more | B.better | C.worse | D.less |
40.A.values | B.requirements | C.expectations | D.levels |
41.A.whichever | B.however | C.wherever | D.whatever |
42.A.succeed | B.fail | C.exist | D.fade |
43.A.Nevertheless | B.Otherwise | C.Instead | D.Moreover |
44.A.look through | B.break through | C.go through | D.pull through |
45.A.initial | B.temporary | C.instant | D.eventual |
46.A.involve | B.influence | C.explain | D.adjust |
47.A.emotional | B.physical | C.technical | D.professional |
48.A.all | B.others | C.someone | D.themselves |
49.A.poorly | B.carefully | C.completely | D.slowly |
50.A.positive | B.ridiculous | C.negative | D.explicit |
51.A.danger | B.awareness | C.amount | D.probability |
52.A.written | B.phrased | C.listed | D.captioned |
53.A.research | B.test | C.talk | D.problem |
54.A.tiredness | B.habits | C.disappointment | D.burdens |
55.A.recalling | B.starting | C.blocking | D.holding |