题型:阅读理解 题类:常考题 难易度:困难
黑龙江省哈尔滨市六中2016-2017学年高一上学期英语12月月考试卷
How the Grand Canyon (大峡谷) was created remains one of the geology's greatest mysteries. Some evidence suggests that the process was a gradual one in which the Colorado River (which runs through the canyon) slowly cut deeper and deeper into the ground over millions of years. But volcanic rock samples taken from the canyon now suggest that the canyon was down-cut instead.
Down-cutting is when a flood of water rushes over a landscape (地形) with enough force to cut deeply into the ground and leaves behind a canyon. Such a flood is usually released when a natural or man-made dam (堤坝) bursts.
Robert Webb, a research geologist, says natural dams seem to have formed and broken across the Colorado River several times during the last million years. The dams were built when lava(熔岩) from the eruptions of nearby volcanoes flowed into the river. The lava hardened into hard rocks and blocked the river, causing it to back up and form a lake. Each time the lake grew so huge that it broke the rock dam, releasing a flash flood that furthered the down-cutting process and deepened the canyon.
Down-cutting is not just an earthly event. Satellite photos sent back from Mars suggest that the process has happened there, too, say many other researchers.
The photos, taken by the Mars Global Surveyor, indicate that an enormous lake existed on Mars 3.5 billion years ago. The lake spilled into a large nearby hole. One edge of the hole broke, releasing a flash flood that quickly carved out a grand canyon.
The existence of down-cutting on Mars is just one more piece of evidence that the cold, dry planet was once warm and wet.
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ESL TEACHER NEEDED IN SHANGHAI
Date updated:Oct 6,2016
Employer:Longman schools, Shanghai
Company type: | Private | Industry type: | Education / Training / Universities and Colleges |
Work City: | Shanghai | Job Category: | English Teaching |
Salary City: | >13000RMB | No. Hiring: | Unspecified |
Work Experience: | 2 years | Job Type: | Full Time |
Qualifications
·A genuine interest in children, teaching, and professional development
·Open-minded, an adventurous spirit, and professional flexibility
·4-year bachelor's degree from an accredited university
·Native English speaker
·Passport issued by the USA, Canada, the UK, Ireland, Australia, and New Zealand
·Two years post bachelor degree teaching experience preferred
·Internationally recognized TEFL, CELTA, or TESOL certification
·Experience traveling internationally and / or working abroad preferred
Responsibilities
·Planning and delivering lessons to learners (ages 3.15)
·Using electronic media and courseware to teach English efficiently and effectively
·Evaluating student progress and providing ongoing guidance for improvement
·Participating in social activities with students organized by your school
·Maintaining regular office hours
Employment package
·Salaries:13,000rmb-16,000rmb per month (depending on experience)
·6,000 rmb sign on bonus (after probation — a time of training and testing when you start a new job)
·10,000rmb Accommodation Assistance Loan (overseas applicants only)
·2,000rmb relocation allowance (overseas applicants only)
·16 teaching hours and 10 office hours per week
·2 Day off per week
·Paid overtime for teaching
·Paid holiday & paid Chinese public holiday
·15-month Z working visa (foreign expert certificate)
·5000rmb flight allowance (paid upon contract completion)
·Comprehensive health Insurance & accident Insurance
·Accommodation assistant
·On-going professional teacher development and training program
·15 month contract (including 3 month's probation)
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