4008-125-888
首页>ACT>ACT科学>ACT科学Session3地球学(Practice实战练习)

ACT科学Session3地球学(Practice实战练习)

2017-05-08 17:02来源:互联网作者:上海管理员

摘要:一位地质学家进行了三项研究, 从而评估水进入和离开湖泊的速度,以及其对湖泊水容量的影响。 水进入湖泊称为进水,而水离开湖泊称为出水。 这些研究历时五年。

  Practice 4

  (52C-Passage I)

  一位地质学家进行了三项研究, 从而评估水进入和离开湖泊的速度,以及其对湖泊水容量的影响。 水进入湖泊称为进水,而水离开湖泊称为出水。 这些研究历时五年。

  Study 1

  这位地质学家测量了进水的两个主要来源:降雨和湖水流入。这位地质学家用了五年的时间定期地对每个进水的来源进行了测量。通过这些测量,他计算了每年的平均降水总量为260×106立方米。图1展示了他的测量结果。

预览

  Study 2

  水离开湖泊的方式主要是通过湖水流出、蒸发和深入到湖底的岩石之中。这位地质学家用了五年的时间定期地对这三种过程进行了测量。此外,一家水务公司用水泵将水从湖中抽出,以供附近的几个小区使用。 在研究期间,这家水务公司向地质学家给出了水泵的抽水速度。计算后的总出水量为300×106立方米/每年。 每个过程的平均出水量见表2。

  Table 2

预览

  Study 3

  这位地质学家在湖中央安装了一台水深度记录仪,并在这五年中每月定期读取测试数值。 每年,他算出这些数值的平均数,得出湖面每年平均降低10厘米。

  Practice 4.1

  If dams were constructed to effectively stop the escape of water by outflowing streams, which of the following is most likely?

  A. Total outflow would equal total inflow.

  B. Total outflow and lake volume would both probably increase.

  C. Total outflow and lake volume would both probably decrease.

  D. Total outflow would decrease and lake volume would increase.

  Practice 4.2

  If the area had experienced a lack of rainfall during the five-year study period, how would this have affected the results?

  F. Total outflow would be higher.

  G. Total inflow would be lower.

  H. Infiltration would be higher.

  J. All results would be unaffected by the drought.

  Practice 4.3

  Which of the following generalizations about the lake's water balance can be made based on the results of the studies?

  A. For any lake, total water outflow always exceeds total water inflow.

  B. The number of inflowing streams exceeds the number of outflowing streams.

  C. If the rates of water entering and leaving a lake are not balanced, lake depth will change.

  D. A lake cannot have both inflowing and outflowing streams and maintain a constant volume.

  Practice 4.4

  Would the geologist have obtained more accurate results if the investigation period was decreased from five to two years?

  F. Yes, because there would be less chance of human error in the measurements.

  G. Yes, because there would be fewer variables to consider.

  H. No, because abnormally high or low measurements would distort the averages.

  J. No, because water movement in and out of the lake is slow.

  Practice 4.5

  Which of the following assumptions was made in all three studies?

  A. The three studies were done at different five-year periods.

  B. The lake is underlain by rock that water cannot infiltrate.

  C. Total inflow and outflow were constant during the investigation.

  D. All significant inflows and outflows of water were identified.

  Practice 4.6

  Based on the results of the studies, the geologist concludes that lake volume decreased annually. Which of the following would help support that conclusion?

  F. Determining if rainfall rate increased annually.

  G. Determining if the surface area of the lake decreased annually.

  H. Repeating the same studies on a different lake.

  J. Repeating the depth measurements on a different lake.

  Answers for Practice 4-6: Practice 4 D G C H D G

  上海新航道学校作为业内良心ACT培训机构 ,坚持“英语”的理念,注重学术研究,注重培养学生的学习能力。想成为下一个高分学员?赶紧来新航道报名ACT培训班 吧!

免费领取资料

免费领取最新剑桥雅思、TPO、SAT真题、百人留学备考群,名师答疑,助教监督,分享最新资讯,领取独家资料。

方法1:扫码添加新航道老师

微信号:shnc_2018

方法2:留下表单信息,老师会及时与您联系

热门课程

  • 走读班(6-8人)
  • 走读班(3-6人)
  • ACT一对一
课程名称 班级人数 课时 学费 报名
ACT强化托管班(6-8人,走读) 3-6人 64 ¥21800 在线咨询
ACT冲刺托管班(6-8人,走读) 3-6人 64 ¥11800 在线咨询
课程名称 班级人数 课时 学费 报名
课程名称 班级人数 课时 学费 报名
ACT一对一 1 按需定制 ¥980元 在线咨询

热门搜索:

免责声明
1、如转载本网原创文章,请表明出处;
2、本网转载媒体稿件旨在传播更多有益信息,并不代表同意该观点,本网不承担稿件侵权行为的连带责任;
3、如本网转载稿、资料分享涉及版权等问题,请作者见稿后速与新航道联系(电话:021-64380066),我们会第一时间删除。

  • 徐家汇校区
  • 人民广场校区
  • 浦东校区
  • 中山公园校区
  • 杨浦校区
  • 闵行校区
  • 松江校区
  • 封闭集训营
  • 地址:徐汇区裕德路126号

    乘车路线:地铁1、4号线上海体育馆、3号线9号线宜山路站、11号线上海游泳馆站

  • 地址:南京西路338号天安中心24楼

    乘车路线:地铁1、2、8号线人民广场站

  • 地址:浦东新区世纪大道1128号耀通科技大厦3楼(地铁2号线世纪大道站12号口出)

    乘车路线:地铁2、4、6号线世纪大道站

  • 地址:长宁路1158号 贝多芬广场 A座4楼414室

    乘车路线:乘车路线:地铁3、4号线中山公园站

  • 地址:杨浦区国宾路18号万达广场A座18楼

    乘车路线:地铁10号线五角场站

  • 地址:东川路1779-19号

    乘车路线:地铁5号线 东川路站4号口出

  • 地址:松江大学城四期校区:文汇路928弄想飞天地2204

    乘车路线:地铁9号线松江大学城站下

  • 地址:上海市浦东新区惠南镇拱极路2151号

    乘车路线:地铁16号线惠南站

总部地址:北京市海淀区中关村大街28-1号6层601 总部电话:400-779-6688 总部:北京新航道教育文化发展有限责任公司

Copyright © www.xhd.cn All Rights Reserved 京ICP备05069206

  • 微信公众号
  • 微信社群