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1、Book 8 Unit 1 基础巩固2一 根据提示拼写单词：1. It is estimated that more than eighty percent of the worlds oceans are _ (未被探索的).2. Some fish have both male and female organs to increase the chances of _(繁殖), as fish are so scarce at these depths that it can be difficult for them to find a mate.3. Dolphins _（跳出） o
2、ut of the water, chasing each other happily.4. The plane was _ (快速旋转) out of control.5. Dark matter gives out no light and is detectable only because of its _ (引力的) effect on visible matter.6. He had a_ so much that I scarcely recognized him.7. The ice _ （裂开） as I stepped onto it.8. A business canno
3、t _（蓬勃发展） without good management.9. And I expect to have a very _（启发性的） conversation with her tomorrow10. Plants draw _（矿物质） and other nutrients from the soil.二用适当词完成下列句子1. In order to obtain food and avoid _(catch), they have to depend on their other senses such as smell.2. Before the discovery of
4、 these creatures, it _(think) that all life on the Earth obtain nutrients from the sun.3. _ there is little life at such great depths, it is far from _(bore).4. The fish in the deep ocean are among the strangest creatures in the Earth, many of _ have yet to be properly studied.5. The fish in the dee
5、p ocean are among the strangest creatures in the Earth, _ many of them yet to be properly studied.6. _ (locate) where the Belt meets the Road, Jiangsu will contribute more to the Belt and Road Initiative.7. I was pouring with sweat, my head _ (spin).8. It is estimated that sea levels _ (rise) by ove
6、r 20 centimetres since 1880.9. Under the sea _ (lie) the evidence for the changing lengths of days and years.10. We are at the place _ diamonds were formed between 1 and 3 billion years ago and swept into the surface.三根据中文完成下列句子。1. 620 million years ago, the day was possibly _.（比今天短3个小时）2. So _(有些地震
7、太强大了) that they are believe to alter the Earths mass.3. Only in this way _.(我们才能拥抱一个明亮的未来)4. _(简言之), climate is what you can expect but weather is what you actually get!5. Other scientists hope that research into microorganisms deep inside the earth would _(阐明生命的起源).6. Microorganisms in a gold mine of South Africa survive _（阳光从来找不到的地方），_（依靠某些岩石中的能量）.7. Tidal records _（沉积在古河口的） also reveal different lengths of days and years in the past.2学科网（北京）股份有限公司