2020绵阳一诊
2020年四川省绵阳市涪城区中考物理一诊试卷

2020年四川省绵阳市涪城区中考物理一诊试卷一、选择题A.水分子之间没有间隙B.分子间同时存在引力和斥力C.分子在不停地做无规则运动D.空气分子间的间距比水的大A.冻肉刚从冰箱里取出时温度很低,不具有内能B.冻肉解冻过程中吸收热量,但温度不会一直升高C.冻肉解冻过程中温度从冷水传向冻肉D.此过程中发生热传递的原因是冷水的内能比冻肉大A.汽油燃烧时将化学能转化为内能B.内燃机在压缩冲程中将内能转化为了机械能C.汽油在T型轿车内比在L型轿车内的热值大D.涡轮增压发动机比普通轿车的发动机效率低A.小球的机械能总量保持不变B.小球的部分机械能转化为内能C.小球在相同高度的动能相等D.小球每次弹起最高点的动能为零•5.三个悬挂着的轻质小球,相互作用情况如图所示,那么甲、乙、丙的带电情况()A.甲、乙球一定带异种电荷B.乙、丙球一定带同种电荷C.如果甲球带正电荷,则丙球带负电荷D.如果甲球带正电荷,则丙球带正电荷A.B.C.D.A.a表是电压表,b表是电流表,c表是电流表B.先闭合S1、S2,再闭合S3,a表示数无变化C.S1、S2、S3都闭合,滑片P向左移动,a、b两表示数无变化D.S1、S2、S3都闭合,滑片P向右移动,b、c两表示数之比变大A.通过甲导体的电流大B.甲导体升高的温度高C.乙导体消耗的电能多D.乙导体两端电压大A.当PM2.5指数增大时,R L的阻值增大B.当PM2.5指数增大时,电流表A的示数减小C.当PM2.5指数增大时,可变电阻R两端电压增大D.适当增大可变电阻R的阻值可以提高报警器的灵敏度A.电流表A1的示数不变、灯L1开路B.电流表A2的示数不变、灯L2开路C.电压表V的示数不变、灯L1开路D.电流表V的示数不变、灯L2开路A.S和A接触,P向右移动灯泡变暗B.S和B接触,P向右移动灯泡亮度不变C.S和C接触,P向左移动灯泡变亮D.S和C接触,P向右移动灯泡亮度变暗A.B.C.D.•13.如图甲所示电路中,R为定值电阻,R1为滑动变阻器。
2020年四川省绵阳市高考数学一诊试卷(文科)

【答案】
数列 满足 ,
可得 = ,即 为等差数列,
= , = ,可得公差 ,
则 = = ;
数列 的前 项和 ,
可得 = = = ;
时, = = = ,
则 = , ;
,
则前 项和 =
.
【考点】
数列递推式
数列的求和
【解析】
(1)由题意可得 = ,即 为等差数列,由等差数列的通项公式可得公差 ,进而得到所求通项公式;由数列的递推式: = , 时, = ,化简可得所求通项公式;
A
【考点】
利用导数研究曲线上某点切线方程
【解析】
求出原函数的导函数,得到 ,再求出 ,利用直线方程的点斜式求切线 ,取 = 求解 在 轴上的截距.
【解答】
由 = ,得 ,
∴ = ,又 = 时, = ,
∴ 在点( )处的切线方程为 = ,
取 = ,得在 轴上截距 = = .
故选: .
10.某数学小组进行社会实践调查,了解到鑫鑫桶装水经营部在为定价发愁.进一步调研了解到如下信息;该经营部每天的房租,人工工资等固定成本为 元,每桶水的进价是 元,销售单价与日均销售量的关系如表:
【答案】
【考点】
解三角形
【解析】
先根据已知条件在 中求出 ,再在直角 中利用正切即可求出结论.
【解答】
如图由题上条件可得线 平行于东西方向
, = , = ; = ;
∴ = ; = ;
在 中, .
如图
平面 ,在直角 中, = = .
若函数 = 有且仅有一个零点,则实数 的取值范围为________ 或________ .
【考点】
对数值大小的比较
四川省绵阳市高中高三上学期第一次诊断性考试语文试卷(1)

绵阳市高中2020级第一次诊断性考试语文注意事项:1.答卷前,考生务必将自己的班级、姓名、考号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
写在本试卷上无效。
3.回答非选择题时,将答案写在答题卡上。
写在本试卷上无效。
4.考试结束后,将答题卡交回。
一、现代文阅读(36分)(一)论述类文本阅读(本题共3小题,9分)阅读下面的文字,完成1—3题。
北宋名僧惠洪在佛教历史、佛禅义旨、文学创作等诸多领域卓有建树、影响深远。
然而,其别集《石门文字禅》以前却没有本土校注本。
此书三十卷,收录惠洪一生的单篇诗文,其内容和佛教历史相关并涉及北宋众多僧徒与文人士大夫,写作背景难定,难解之处颇多。
之前只有日本僧人廓门贯彻曾对《石门文字禅》做注,但注释粗疏,谬误较多。
中国学者周裕锴教授与宋代惠洪、日本廓门贯彻展开跨时空对话,积二十多年心力,完成《石门文字禅校注》一书。
黄永年先生曾说:“要给一部书作注,一定要对这部书真正下过功夫,对书的作者、对书的内容,以及对书的作用都得有深切的理解。
”周裕锴在唐宋文学、禅文化、古代阐释学三大领域深耕多年。
其著作《中国禅宗与诗歌》《文字禅与宋代诗学》等对佛禅与文学等问题皆有深入研究和精辟见解。
此外,他还承担了《苏轼全集校注》一书的部分工作——对苏轼文集进行校注。
就为《石门文字禅》作注而言,周裕锴教授无疑是最佳人选。
从周裕锴2001年主持《石门文字禅》读书会算起,至《石门文字禅校注》出版,中间相距20年,可见本书耗时之久。
《石门文字禅校注》对《石门文字禅》进行了全面而系统地校勘和注释。
每篇诗文下包含校记、注释、集评三项内容,书末还附篇目索引,方便了读者阅读。
本书既肯定了昔贤成果,亦订正旧说疏误,在校勘、注释、标点、编年和辑佚等方面取得了远超前人的成就。
以下试从两方面进行说明。
校勘首先要选择合适的底本,以奠定文本基础。
四川省绵阳市2020届高三上学期第一次诊断性考试数学(文)试题 含解析答案

注意事项:1.本试卷分第I 卷(选择题)和第II 卷(非选择题)两部分。
答卷前,考生务必先将自己的姓名、准考证号码填写在答题卡上。
2.回答第I 卷时,选出每小题的答案后,用铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其他答案标号。
写在本试卷上无效。
3.回答第II 卷时,将答案写在答题卡上,写在本试卷上无效。
4.考试结束后,将本试卷和答题卡一并交回。
一、选择题:本大题共10小题,每小题5分。
在每小题给出的四个选项中,只有一项是符合题目要求的。
1.已知}3|{≤∈=*x N x A ,0}4x -x |{x 2≤=B ,则=⋂B A ( )}3,2,1.{A }2,1.{B (]3,0.C (]4,3.D【答案】A【解析】由题意得:{1,2,3}}3|{=≤∈=*x N x A ,[]4,10}4x -x |{x 2=≤=B ,所以=⋂B A }3,2,1{.【方法总结】集合是数学中比较基础的题目,但是仍然有许多同学出现考试失分。
特此总结下与集合中的元素有关问题的求解策略。
(1)确定集合的元素是什么,即集合是数集、点集还是其他类型的集合.(2)看这些元素满足什么限制条件.(3)根据限制条件求参数的值或确定集合中元素的个数,要注意检验集合是否满足元素的互异性. 2.若0<<a b ,则下列结论不正确的是( ) A.ba 11< B.2a ab > C.||||||b a b a +>+ D.33b a < 【答案】C【解析】由题意得:此题可以用特殊值加排除法,设1,2-=-=b a 时,||||||b a b a +=+与C 矛盾.【方法总结】此题考查不等式的性质,基础题。
||||||||||b a b a b a -≥+≥+ 3.下列函数中的定义域为R ,且在R 上单调递增的是( )绵阳市高中2020届第一次诊断性考试文科数学A.2)(x x f = B.x x f =)( C.||ln )(x x f = D.x e x f 2)(=【答案】D【解析】B.的定义域为[)∞+,0,C 的定义域0≠x ,排除。
四川省绵阳市2020届高三“一诊”模拟语文试题(含答案)

四川绵阳2020届“一诊”模拟试题语文一、现代文阅读(36分)(一)论述类文本阅读(本题共3小题,9分)阅读下面的文字,完成1-3题。
历史学是人类社会一项极其古老的文化现象与学术活动。
历史学肇基于人类天然的记忆本能。
有记忆而后有历史叙事,有历史叙事而后有作为学术活动的历史学。
历史叙事是历史学与生俱来的基本形态,既是它的形式,也是它的内容。
近代以来之所以出现史学困境,一个重要原因就是对历史叙事的过度批判。
从某种意义上说,历史学是由叙事派生出来的,叙事正是历史学的基本所在。
一旦剥离了叙事性,历史学也就失去了根基。
传统史学尽管缺少学科反思,但作为其叙事性自然长成的结果,曾经创造出辉煌的学科历史,中国传统史学就提供了这方面的实例。
而近代以来在史学反思中对历史叙事的批判,并没有再造现代史学的辉煌,反而留下了众多的迷惑与失落。
这当然并不意味着对史学的反思本身存在问题,而是表明对史学的反思需要进一步深入,或者需要更换反思逻辑,不能仅仅停留在对叙事性的批判上,而应重新审视叙事性与科学性对于历史学的不同意义与价值。
虽然在历史叙事中要运用想象与虚构,但它并不同于文学叙事中的想象与虚构,历史叙事者并没有想象与虚构的主观意图,而且对于想象与虚构始终是抱有排斥态度的。
历史叙事还可能因叙述者主体认识的差异而对叙事内容的选择与编排产生重要影响。
种种因素都会造成所述“历史事实”的差异性,但这种差异性并不能推翻历史事实的可靠性。
在基本事实层面,可以通过史料收集的增加与史实考证的深入而得到修正,并渐趋统一。
而在历史叙事层面,虽然历史学家针对同一事实的叙述,有可能选择不同的事实材料、采取不同的叙述方式,但这绝非历史学应受非议之处,它恰恰反映了历史学作为人类实现自我反思、自我认同的工具所具有的人文性。
历史是客观存在的,而不是历史虚无主义者所认为的是建构的、想象的。
历史叙事作为历史学与生俱来的基本形态,应成为历史学家自觉捍卫的学科边界。
2020年四川省绵阳市高考化学一诊试卷

2020年四川省绵阳市高考化学一诊试卷一、选择题1. 化学与生产、生活、社会密切相关。
下列叙述错误的是()A.还原铁粉能用作食品抗氧化剂B.夜空中光柱的形成属于丁达尔效应C.浸泡过KMnO4溶液的硅土可作水果保鲜剂D.燃煤中加入CaO可减少温室气体的排放2. 下列关于有机物的说法错误的是()A.植物油分子结构中含有碳碳双键B.乙醇与钠反应生成乙醇钠和氢气,属于取代反应C.同温同压下,等质量的乙炔和苯完全燃烧耗氧量相同D.分子式为C3H6BrCl的有机物不考虑立体异构共5种3. N A为阿伏加德罗常数的值。
下列说法正确的是()A.19 g羟基(−18OH)所含中子数为10N AB.标准状况下,44.8 L HF含有2N A个极性键C.1 mol NaHSO4晶体含有的离子数为3N AD.0.1 mol⋅L−1 KAl(SO4)2溶液中SO42−的数目为0.2N A4. 下列实验操作或方法正确的是()A.检验某溶液中是否含有Fe2+时,先加入少量H2O2,再滴加KSCN溶液B.配制100 mL 1 mol/L NaCl溶液时,用托盘天平称取5.85 g NaCl固体C.将FeCl3饱和溶液煮沸制备Fe(OH)3胶体D.用紫色石蕊溶液鉴别乙醇、乙酸和苯5. 下列离子方程式书写正确的是()A.食醋除水垢:2H++CaCO3=Ca2++CO2↑+H2OB.稀硝酸中加入少量亚硫酸钠:2H++SO32−=SO2↑+H2OC.处理工业废水时Cr(Ⅵ)的转化:Cr2O72−+3SO32−+8H+=3SO42−+2Cr3++4H2OD.用酸性KMnO4测定草酸溶液浓度:5C2O42−+2MnO4−+16H+=2Mn2++10CO2↑+8H2O6. 短周期主族元素X、Y、Z、W原子序数依次增大,原子序数之和为42,X原子的核外电子总数等于Y的最外层电子数,Z原子最外层只有1个电子,W能形成酸性最强的含氧酸。
下列说法正确的是()A.单质的熔点:Z>XB.Z与Y、W均能形成离子化合物C.气态氢化物的沸点:X<Y<WD.X、Z的氧化物均含非极性键7. 某学习小组在实验室从海带中提取碘,设计实验流程如下:下列说法错误的是()A.过滤操作主要除去海带灰中难溶于水的固体,它们主要是无机物B.氧化剂参加反应的离子方程式为2I−+H2O2+2H+=I2+2H2OC.萃取过程所用有机溶剂可以是酒精或四氯化碳D.因I2易升华,I2的有机溶液难以通过蒸馏法彻底分离二、非选择题2019年诺贝尔化学奖授予在开发锂离子电池方面做出卓越贡献的三位化学家。
2020年四川省绵阳市高考生物一诊试卷

B.F 中黄花植株所占的比例为
C.F 红花植株中双杂合个体所占的比例为
D.可以通过测交来确定F 某红花植株的基因型以及产生配子的种类和数量
【答案】
D
【考点】
基因的自由组合定律的实质及应用
【解析】
根据题意“花色受两对独立遗传的基因(A/a和B/b)共同控制。只要存在显性基因就表现为红色(A﹣B﹣、A﹣bb、aaB﹣),其余均为黄色(aabb)。含A的花粉有50%不能参与受精。则基因型为AaBb的某植株产生的雄配子基因型和比例为AB:Ab:aB:ab=1:1:2:2,产生的雌配子的基因型和比例为AB:Ab:aB:ab=1:1:1:1.据此答题。
2.下列有关细胞生命历程的叙述,错误的是()
A.人体心肌细胞和肝脏细胞中都有血红蛋白基因
B.异常活泼的带电分子攻击蛋白质可能会导致细胞衰老
C.细胞凋亡是基因控制的细胞自主而有序的死亡
D.癌细胞与正常细胞中的基因和蛋白质种类都相同
【答案】
D
【考点】
细胞分化的实质及意义
癌细胞的主要特征
衰老细胞的主要特征
D.蔗糖溶液浓度越高,植物细胞质壁分离及复原现象越明显
【答案】
C
【考点】
细胞质壁分离与质壁分离复原现象及其原因
物质进出细胞的方式的综合
【解析】
1、葡糖糖进入不同的细胞运输方式可能有差别,进入红细胞是协助扩散,进入其他细胞是主动运输;
2、台盼蓝能够将死亡的细胞染色,活细胞细胞膜具有选择透过性,不能染色;
【解答】
A、甲组细胞中进行有丝分裂的细胞,染色体复制后不能形成四分体,A错误;
B、乙组细胞仅部分正处于减数第一次分裂前的间期,还有部分正处于有丝分裂的间期,B正确;
2020届四川省绵阳市高三第一次诊断性考试地理试卷及答案

2020届四川省绵阳市高三第一次诊断性考试地理试卷及答案2020届四川省绵阳市高三第一次诊断性考试地理试卷(含答案)一、选择题:本卷共35小题,每小题4分,共140分。
在每小题给出的四个选项中,只有一项是符合题目要求的。
蓄水能力是评价土壤水源涵养、调节水循环能力的主要指标之一。
林地土壤蓄洪作用主要反映在毛管孔隙水的贮存能力上。
土壤持水量饱和后会产生地表和地下径流。
表1为四川盆地东部海拔350米-951米某山不同林地土壤孔隙度和持水性资料。
据此完成1~3题。
1.最不适合该山地作为水土保持林的林地类型是A.针阔混交林B.楠竹林C.常绿阔叶林D.灌木林2.不考虑其他因素,在相同降水条件和相同前期土壤湿度条件下,产生径流时间最长的是A.针阔混交林B.楠竹林C.常绿阔叶林D.灌木林3.当地灌木林有机质含量高,与其关联度最小的是A.动物品种多B.枯枝落叶多C.地表径流大D.年均温较高黑炭是化石燃料和生物质在缺氧条件下热解炭化产生的表面以灰黑色为主的一类大气污染物。
黑炭能在空气中随大气运动、降水等扩散,会对冰川产生重要影响,进而影响全球气候。
图1为青藏高原及周边冰雪中黑炭含量(单位为10-9)。
据此完成4~6题。
- 1 -/144.图中虚线框内高含量黑炭带的形成,主要是因为A.油气资源开发B.交通运输发展C.牲畜粪便焚烧D.工厂废气排放5.青藏高原东南部空气中黑炭含量呈现夏低冬高的特点,原因主要是夏季 A.太阳辐射强,促进了黑炭的分解 B.西风势力强,利于污染物的扩散 C.气温高,利于大气层中黑炭自燃 D.降水多,利于黑炭随雨水沉降到地面 6.冰雪表层的黑炭会对冰川产生重要的影响,是因为其对太阳辐射A.吸收强,加速冰雪消融B.吸收弱,加速冰雪累积C.反射强、加速冰雪消融D.反射弱、加速冰雪累积山地林线指高山带针叶林分布的上限,主要受降水量、气温和风力等因素影响。
图2中的曲线为横断山区28N附近自西向东各山脉东坡林线的分布变化图。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
绵阳市高2017级第一次诊断性考试英语试题本试卷分第I卷(选择题)和第II卷(非选择题)两部分。
共150分。
考试时间120分钟。
第I卷(共三部分,共115分)注意事项:必须使用2B铅笔将答案标号填涂在答题卡上对应题目标号的位置上。
第一部分听力理解(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
选出最佳选项,并标在试卷的相应位置。
每段对话仅读一遍。
1.How will the speakers get home?A.By taxi.B.On foot.C.By bus.2.What does the man think of the music?A.Exciting.B.Boring.C.Relaxing.3.What will the man do tonight?A.Do some reading.B.Take a good rest.C.Go to a movie.4.Why is the man late today?A.He forgot the time.B.He didn't set the alarm.C.He didn't hear the alarm.5.What are the speakers doing?A.Having a meeting.B.Discussing work.C.Making an appointment.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
选出最佳选项,并标在试卷的相应位置。
每段对话或独白读两遍。
听第6段材料,回答第6至7题。
6.What's the relationship between the speakers?A.Fellow workers.B.Patient and doctorC.Passenger and driver.7.When did the woman hurt her finger?A.When having a meeting.B.When getting off a taxi.C.When rushing to the subway.听第7段材料,回答第8至10题。
8.When does the conversation take place?A.On Nov.13.B.On Nov.30.C.On Dec.25.9.What are the speakers talking about?A.Preparing presentsB.Celebrating Christmas.C.Buying perfume.10.What will Jane buy for her sister?A.A CD.B.A bottle of perfume.C.A book听第8段材料,回答第11至13题。
11.When will the trip take place?A.On Friday.B.On Saturday.C.On Sunday12.What will they do for the first day?A.Having campfire party.B.Swimming in the lake.C.Climbing to the mountaintop.13.Who do you have to see if you want to join in?A.Jennifer.B.Mike.C.Anne.听第9段材料,回答第14至16题。
14.What does the woman think of the e-book?A.It costs a lot.B.It hurts her eyes.C.It is convenient.15.What will the man do next?A.Wait for the woman.B.Return to the classroom.C.Go to find his favorite books.16.Where does the conversation probably take place?A.In a classroom.B.In a bookstore.C.In a library.听第10段材料,回答第17至20题。
17.How many times had the volunteers organized such activities before?A.6.B.7.C.8.18.What did the volunteers do first in the morning?A.They planted trees.B.They cleaned the walls.C.They talked with some students.19.What was Li Lei's talk about?A.The usage of waste paper.B.The role of environment protection.C.The relationship between water and pollution.20.Which activity was the last one?A.The lab work.B.The discussion.C.The quiz.第二部分阅读理解(共两节,满分40分)第一节阅读理解(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A,B,C和D)中,选出最佳选项,并在题卡上将该项涂黑。
AFOUR BEST BOOKSHOPS IN LONDONLooking for something to read while in London?If so,you're in luck:the British capital happens to have an incredible collection of bookshops.Daunt BooksAre you going on a trip and want to read a novel or nonfiction book set in the place you're headed? This bookshop arranges books by country,so it's easy to find anything by place.(83Marylebone High Street.Monday----Saturday:09:00-19:30;Sunday:11:00-18:00.)Foyles BooksDig,if you will,the picture:four miles of shelves holding up to200,000books.This legendary(传奇的)bookshop is impossible to leave empty-handed.It was once listed in the Guinness Book of World Records as the biggest bookshop on the planet.(107Charing Cross Road.Monday----Saturday: 9:00-21:00;Sunday:11:30-18:00.)HatchardsIn the year1797,this London bookshop-the oldest in the city today----first flicked on its lights.It stocks an excellent selection of fiction,nonfiction,history and other genres.(187Piccadilly Street. Monday----Saturday:09:30-20:00;Sunday12:00-18:30.)London Review BookshopThere's an excellent selection of history,philosophy,politics,new fiction and many other genres here.Plus,there's a nice cafe in which you can crack open that tome(巨著)for the first time and start reading(14Bury Place.Monday----Saturday:10:00-18:30;Sunday12:00-18:00.)21.Which bookstore was listed in the Guinness Book of World Records?A.Daunt Books.B.Foyles Books.C.Hatchards.D.London Review Bookshop.22.What is special about Hatchards?A.It has a long history.B.It has200,000books.C.It has a cafe.D.It has both fiction and nonfiction books.23.Which place should you go to if you want to enjoy reading with a coffee?A.83Marylebone High Street.B.107Charing Cross RoadC.187Piccadilly Street.D.14Bury Place.BI’ll never forget driving away from my village in war-torn Vietnam.I was five and my mum,Can, told me and my brother Tam we were going on holiday,but as she hugged us goodbye,she began to sob so much her whole body was shaking.I gripped my little brother’s hand as I watched the tiny village grow smaller in the rear view window.Like many Vietnamese children,we were adopted by an Australian family.It was a scary,lonely and confusing time,and I missed my birth family horribly.“When am I going home?”I’d ask again and again in Vietnamese,but no one would answer me because they didn’t understand I’d ask about my birth mother so often that my new parents told me she had died.I cried myself to sleep every night until I was eight or nine.My adoptive family were dysfunctional and home life was tough.At15,my adoptive mother died.After that,I was going through my adoptive father’s filing cabinet (橱柜)and found an old letter,with Vietnamese postmark.I felt delighted as I realized it was from mybirth mum.Straight away,I wrote a long letter to the address she had given,explaining who I was and asking if Can was alive.Soon after,I got a simple fax back,saying“Mother still alive,very happy to hear from you.”My heart soared as I read her words.For the next few years,I exchanged letters with her and was thrilled to finally have contact with her.I was so grateful for that.24.Why did the author’s mum begin to sob in Paragraph1?A.Because she felt excited when hugging her children.B.Because her children were going on holiday.C.Because her children were leaving her.D.Because her whole body was shaking.25.How was the author’s adoptive life?A.Hard.B.Happy.C.Easy.D.Free.26.What was the possible reason for Can’s failing to contact the author?A.Can didn't like the author.B.Can didn't know where the author was.C.Can was dead.D.Can was not allowed to contact the author.27.How did the author feel when she read her mum’s words?A.Upset.B.ExcitedC.Lonely.D.Moved.CA study has found that middle-aged and older adults who live in greener neighborhoods have decreased risk of developing metabolic syndrome(代谢综合征)such as obesity,hypertension(高血压)and high blood sugar.The study,published in Environmental Pollution,was conducted by the Barcelona Institute for Global Health(ISGlobal).It differed from previous studies on the health benefits of green spaces in that it examined all of the symptoms of metabolic syndrome together collectively rather than as individual components.Having metabolic syndrome increases a person’s risk for heart disease,stroke and type2 diabetes,according to the National Heart,Lung,and Blood Institute.The study from ISGlobal examined data from clinical examinations of over6,000British adults who were between45and69years old when the study began.The data was derived from four examinations participants went through between1997and2013that included blood analyses,blood pressure and measurements of weight.“These findings suggest that long-term exposure to green spaces can play an important role in preventing metabolic syndrome as whole,”according to press release published by Isglobal.The correlation between nearness to green spaces and better health could be associated with the expanded opportunities for physical recreation and lower exposure to air pollution,according to Carmen de Keijzer,ISGlobal researcher and principal author of the study.Female subjects were more likely than males to exhibit the study’s association between living in greener neighborhoods and having fewer metabolic symptoms“Women tend to spend more time in their residential neighborhood,which could explain this gender difference,”de Keijzer said.“We need greener cities if we want healthier cities.”de Keijzer added.28.What do we know about the study from the first two paragraphs?A.Young people were not included in the study.B.Symptoms were examined one by one.C.It was a joint effort of several institutes.D.It was the first of its kind in decades.29.What does the underlined word“derived”in Paragraph3mean?A.Departed.B.Arrived.C.Gained.D.Demanded.30.Why do women have fewer metabolic symptoms?A.Because they differ in gender.B.Because they live in greener cities.C.Because they live in healthier cities.D.Because they stay more in where they live.31.What can be a suitable title for the text?A.Greener Neighborhoods,Fewer Metabolic SymptomsB.Women Having Fewer Metabolic SymptomsC.Metabolic Syndrome Increasing Heart DiseaseD.Living in Greener and Healthier CitiesDWheat is a main source of food for people across the planet,accounting for a fifth of the calories consumed globally.But,as a result of climate change,scientists believe most parts of the world where the crop is grown will be hit by water shortages by the end of the century.And the U.S.could be among the countries worst affected,the authors of the research published in the journal Science Advances told Newsweek.If climate change isn't dealt with,by the year2100,60percent of areas that grow wheat will be hit by water scarcity----up from the current level of15percent,according to the international team of scientists.Co-authors Miroslav Trnka and Song Feng told Newsweek that in their previous research,they had shown climate change may cause soil to become less moist across most mainland U.S.states,including those where wheat is grown.As a result,the U.S.could be“one of the top most affected wheat producers”in terms of the increase in areas affected by severe droughts,they said in a joint statement.Worryingly,existing research has predicted a4.0to6.5percent drop in global wheat production per 1degree Celsius of warming if climate change isn't eased.And it's unlikely that wheat can be replaced if water becomes scarce,as it's not as thirsty as other crops and can do without water for a relatively long period of time.“If multiple regions are affected by drought at the same time,it might be difficult to meet the demand even if the trade routes stay open and are not restricted by governmental measures,”warned Fengand Trnka.However,he said:“Studies show that if we continuously improve the sustainability and technologies in the coming decades and allow for international trade,we may overcome the negative impacts of climate change.”32.How will climate change hurt wheat production?A.By raising ground temperature.B.By reducing water supply.C.By polluting the soil.D.By flooding the field.33.What can we learn from Paragraph3?A.Wheat production caused droughts in most mainland U.S.states.B.The United States is the biggest wheat producer in the world.C.Climate change is closely watched by American scientists.D.The United States will suffer most from climate change.34.Why is wheat unlikely to be replaced by other crops in a drought?A.It is the primary food for most countries.B.It is not influenced by global warming.C.It is widely grown in most countries.D.It needs less water than other crops.35.In which section of newspaper may this text appear?A.Health.B.Science.cation.D.Entertainment.第二节七选五(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。