题目内容

【题目】日照时数指太阳在某地实际照射的时间,图们江是中国与朝鲜的界河。下图为图们江流域日照时数年内变化柱状图。据此完成下列各题。

(1)日照百分率为一个时段内某地日照时数与理论上最大的日照时数的比值(﹪)。该流域9月份的日照百分率大约为( )
A.78﹪
B.64﹪
C.72﹪
D.55﹪
(2)该流域日照时数在7月出现低谷的主要原因是( )
A.天空中云量多
B.下垫面植被增多
C.太阳高度变化大
D.昼长变短

【答案】
(1)D
(2)A
【解析】(1)图示日照时数图中,9月份日照时数是200小时。9月份在秋分日附近,各地昼夜长短相等,每天理论上日照时数是12小时,整个9月理论上最大日照时数是360小时,所以日照百分率约是55﹪。(2)同一地区影响日照时数差异的主要因素是天气。7月份,雨带移动到华北、东北地区,图门江是雨季,天空云量较多,日照时数少,A对。海拔、下垫面、正午太阳高度有影响,但不是7月份出现低谷的原因,B、C、D错。

练习册系列答案
相关题目

【题目】阅读图文表格材料,回答下列问题。

材料1:“湾区”是指由一个海湾或者相连的若干个海湾、邻近岛屿等共同组成的区域。国际一流湾区如纽约湾区、旧金山湾区、东京湾区等,以开放性、创新性、宜居性和国际化为其最重要特征,具有开放的经济结构、高效的资源配置能力、强大的集聚外溢功能和发达的国际交往网络。

材料2:2017年3月5日召开的十二届全国人大五次会议上,国务院总理李克强在政府工作报告中提出,要推动内地与港澳深化合作,研究制内地与港澳深化合作,研究制定粤港澳大湾区城市群发展规划,发挥港澳独特优势,提升在国家经济发展和对外开放中的地位与功能。右图为粤港澳大湾区及相关信息图。

材料3:专业镇是具有广东特色的区域产业集群发展载体,也是广东省传统产业和特色优势产业的主要集聚地。目前,全省经认定的专业镇有399个,专业镇GDP达2.77万亿元,占全省的38.1%。

材料4:下表为该地区某中学地理研究性学习小组收集的当地城市建设发展过程中水量百分比的变化情况。

(1)粤港澳大湾区城市群发展的有利条件有____________。

(2)广东省专业镇同一产业的相关企业集聚发展有利于____________。

(3)环境污染是粤港澳大湾区发展中需要解决的问题,为此应该____________。

(4)根据材料4,分析该城市水量百分比变化的原因____________。

【题目】完形填空

阅读下面短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。

I couldnt survive without music, says fifteenyearold Steve. In the morning, Steve wakes up__1__ his favorite radio station. He listens to rock on the radio while he eats__2__. He puts on his personal stereo before he leaves the house and listens to cassettes(盒式磁带) on the bus to__3__.

Last week I put my headphones on in the math__4__,admits Steve. The teacher was really__5__. She took my headphones away and I couldnt use them for a week. It was__6__.At home Steve does his homework to loud music.

My mother__7__ shouts: Turn it down!says Steve.She cant__8__ how I can work__9__music on, but music__10__me to concentrate. Steve would like to make music himself. Im learning to play the guitar. __11__, it doesnt sound too good at the __12__. But Im going to keep practicing!

For__13__like Steve, music is a very important part of__14__. Music is social. It brings people together at discos, parties and concerts. Fast, __15__music is full of energy; it helps people to__16__their problems and have __17__. Music talks about love, freedom and imagination. There are always new songs and new styles.

__18__ Steves mother agrees that music brings some problems.Steve is a sensible boy, she says.I dont think he would ever take drugs hearing rock. But I__19__ worry about his hearing with all that loud music. And it __20__me crazy!

【1】A. from B. for C. with D. to

【2】A. breakfast B. lunch C. supper D. dinner

【3】 A. work B. office C. school D. party

【4】A. workshop B. class C. dormitory D. schoolroom

【5】A. excited B. worried C. angry D. tired

【6】A. terrible B. hopeless C. poor D. surprising

【7】A. usually B. seldom C. frequently D. always

【8】A. expect B. bear C. understand D. believe

【9】A. while B. at C. for D. with

【10】A. helps B. leads C. causes D. forces

【11】A. Unluckily B. Actually C. Disappointingly D. Necessarily

【12】 A. first B. last C. moment D. time

【13】A. grownups B. parents C. friends D. teenagers

【14】 A. study B. life C. family D. school

【15】A. sound B. noisy C. light D. loud

【16】A. forget B. settle C. remove D. leave

【17】 A. smiles B. future C. fun D. sense

【18】A. And B. However C. Meanwhile D. But

【19】A. can B. do C. will D. should

【20】A. causes B. results C. drives D. leaves

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网