B
Ever since people left Africa for West Asia, about 70,000BC, they have probably always eaten wheat. Wheat ___1___ good and is also a good source of carbohydrates(碳水化合物), but for hundreds of thousands of years, people did not ___2___ wheat. They just picked wheat in the wild, wherever it___ 3___ to grow.
Sometime around10,000BC, though, the area around Mesopotamia and Egypt became so crowded that there was no longer enough ___4___ to go around just by ___5___ it and people had to begin growing it ___6___, removing all the plants that people couldn't eat like pine trees, and ___7___the ones that people could eat, like wheat.
___8___, people made wheat easier to grow and eat, by choosing the seeds of the ___9___ plants for the next year's planting. They chose wheat with big heavy ___10___(the part you eat), and wheat whose berries were easy to separate from the chaff(the part you don't ___11___).
People got to have lots of wheat. They learned different ways of ___12___ wheat. Sometimes, they put it in a pot with ___13___ and boiled it into porridge. This was easy to do, and also it used very little ___14___ to cook it. Other times, they made bread with it.This was ___15___ to cook and needed more fuel,___16___ they could carry it around and ___17___ it better than porridge, and it tasted better. Mostly, they made bread, or ___18___ or pizza.
By around 1,500 BC, people were growing ___19___ in China.But people did not make wheat into bread. ___20___, they made noodles.
答案：1-5 BACDB 6-10 ABCDC 11-15 DACDB 16-20 ACDBA
Ever since people left Africa for West Asia, about 70,000BC, they have probably always eaten wheat. Wheat ___1___ good and is also a good source of carbohydrates(碳水化合物), but for hundreds of thousands of years, people did not ___2___ wheat. They just picked wheat in the wild, wherever it___ 3___ to grow.
Sometime around10,000BC, though, the area around Mesopotamia and Egypt became so crowded that there was no longer enough ___4___ to go around just by ___5___ it and people had to begin growing it ___6___, removing all the plants that people couldn't eat like pine trees, and ___7___the ones that people could eat, like wheat.
___8___, people made wheat easier to grow and eat, by choosing the seeds of the ___9___ plants for the next year's planting. They chose wheat with big heavy ___10___(the part you eat), and wheat whose berries were easy to separate from the chaff(the part you don't ___11___).
People got to have lots of wheat. They learned different ways of ___12___ wheat. Sometimes, they put it in a pot with ___13___ and boiled it into porridge. This was easy to do, and also it used very little ___14___ to cook it. Other times, they made bread with it.This was ___15___ to cook and needed more fuel,___16___ they could carry it around and ___17___ it better than porridge, and it tasted better. Mostly, they made bread, or ___18___ or pizza.
By around 1,500 BC, people were growing ___19___ in China.But people did not make wheat into bread. ___20___, they made noodles.
| 1. A. looks | B. tastes | C.sounds | D.smells |
| 2.A.grow | B.store | C.discover | D.divide |
| 3.A.liked | B.tended | C.happened | D.decided |
| 4.A.power | B.equipment | C.service | D.food |
| 5.A.buying | B.picking | C.improving | D.exchanging |
| 6.A.on purpose | B.on time | C.in advance | D.in turn |
| 7.A.protecting | B.planting | C.selling | D.removing |
| 8.A.Strangely | B.Probably | C.Gradually | D.Obviously |
| 9.A.old | B.rare | C.tallest | D.best |
| 10.A.leaves | B.roots | C.heads | D.trunks |
| 11.A.sow | B.nurse | C.eat | D.carry |
| 12. A.cooking | B.managing | C.spreading | D.harvesting |
| 13. A.salt | B.meat | C.water | D.oil |
| 14. A.powder | B.milk | C.money | D.fuel |
| 15. A.useless | B. hard | C.impossible | D.unnecessary |
| 16. A.but | B.because | C.so | D.or |
| 17. A.cover | B.change | C.keep | D.operate |
| 18. A.vegetables | B.coffee | C.sauce | D.pancakes |
| 19. A.rice | B.wheat | C.trees | D.flowers |
| 20. A.Instead | B.Therefore | C.Besides | D.Otherwise |
