Egypt Felled by Famine
The ancient Egyptians depended on the Niles annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods.
The Blue Nile mud has a different isotope signature from that of the White Nile. So by analyzing isotope differences in mud deposited in the Nile Delta, Michael Krom of leeds University worked out what proportion of sediment came from each branch of the river.
The weakened waters would have been catastrophic for the Egyptians. Changes that affect food supply dont have to be very large to have a ripple effect in societies, says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
词汇:
dwindle 逐渐变少,逐渐变小;使变少,使变小
geoarchaeologist 地质考古学家
signature 签名;特征
注释:
2.Ethiopia:埃塞俄比亚
4.the White Nile:白尼罗河
1. Why does the author mention pyramid builders?
B. because they were well-built
D. because even they were unable to rescue their civilization
A. Change of climate
C. food
3. Which of the following statements is true?
B. The White Nile is the trunk of the Blue Bile
D. The White Nile and the Blue Nile are branches of the River Nile
A. immediately after a period of drought
C. just before a drought struck
5. The word devastating in the last paragraph could be best replaced by
B. damaging
D. worrying
上一篇: 2015职称英语考试理工类阅读理解(3)
2015春湘少版英语三下《Unit 6 How many pens are there》ppt课件3
2015春湘少版英语三下《Unit 6 How many pens are there》ppt课件1
湘少版三下《Unit 10 It’s a cold day》ppt课件
2015春湘少版英语三下《Unit 3 What colour is balloon》ppt课件1
湘少版三下《Unit 13 What shape is this》ppt课件之一
湘少版英语三下《Unit 1 How are you》PPT课件3
湘少版英语三下《Unit 13 What shape is this》PPT课件2
湘少版英语三下《Unit 10 It’s a cold day》PPT课件
湘少版[2013春]三下《Unit 2 Are you Lingling》ppt课件
湘少版英语三下《Unit 13 What shape is this》PPT课件5
2015春湘少版英语三下《Unit 2 Are you Lingling》ppt课件3
2015春湘少版英语三下《Unit 2 Are you Lingling》ppt课件5
湘少版英语三下《Unit 13 What shape is this》PPT课件3
2015春湘少版英语三下《Unit 3 What colour is balloon》ppt课件4
2015春湘少版英语三下《Unit 2 Are you Lingling》ppt课件4
2015春湘少版英语三下《Unit 4 Look at the T-shirts》ppt课件3
2015春湘少版英语三下《Unit 3 What colour is balloon》ppt课件3
2015春湘少版英语三下《Unit 5 What time is it》ppt课件2
湘少版三下《Unit 1 How are you》ppt课件
2015春湘少版英语三下《Unit 5 What time is it》ppt课件4
2015春湘少版英语三下《Unit 5 What time is it》ppt课件3
湘少版英语三下《Unit 1 How are you》PPT课件2
湘少版三下《Unit 4 What is the time》ppt课件
湘少版三下《Unit 6 What colour is this balloon》ppt课件
湘少版三下《Unit 5 How many pens are there》ppt课件
湘少版三下《Unit 8 Is this a mango》ppt课件
湘少版英语三下《Unit 13 What shape is this》PPT课件
2015春湘少版英语三下《Unit 6 How many pens are there》ppt课件2
湘少版英语三下《Unit 1 How are you》PPT课件
湘少版英语三下《Unit 10 It’s a cold day》PPT课件2