Unit7SectionB(1a-1d)基础练习 2022-2023学年人教版八年级英语下册

Unit 7 Section B (1a-1d) 一、根据句意及首字母提示完成下列句子。 1.The elephant w about 5 tons. 2.The panda eats about 10 k of bambo0 a day. 3.We humans can l up to more than100 years if we are healthy enough. 4.My mother told me that I was only 50 cm long at b . 5.Look!That a panda is looking after her baby pandas. 二、句子合并。 6. This giraffe is 350cm tall. That giraffe is 150cm tall. This giraffe is cm than that giraffe. 7.I am 15 years old. Lucy is 13 years old. Lucy is than me. 8.A panda can live up to 30 years. A bee(蜜蜂)can live up to 5months. A panda can live than a bee. 9.The elephant weighs 5,000kilos. The tiger weighs 500kilos. The elephant weighs9 than the tiger. 10.The Sahara is 9,320,000square kilometers in size. The Taklimakan is 330,000 square kilometers in size. The Sahara is about28 as the Taklimakan. 3、 六选五 Not all penguins（企鹅）live in cold place.11. Like other penguins,African penguins spend most of the day feeding in the ocean, and that helps keep them cool.Their living place can get quite warm,but bare skin (裸露的皮肤)on their legs and around their eyes help them stay cool.12. Most other penguins lay (产) their eggs in the open. However, African penguins do it in a different way.13. The baby penguins stay in the holes for about three weeks.After that, they start going out and return to the hole to stay cool and stay away from dangerous animals. 14. In the water,African penguins also have to keep away from other big sea life. The African penguin is in danger now.There are only about 52,000 penguins left in the wild. 15. Other problems include humans picking penguin eggs for sale,competition with humans for fish and oil pollution in the ocean. A.They also stay in some cool places when they can. B.They dig holes to Lay their eggs so that they are protected from the sun's heat (高温). C.One problem is that they are Losing