必修四词性变化练习题unit2.docVIP

PAGE PAGE 2 必修四课文基础知识记忆与练习巩固unit2 一 熟记下面重点单词词性变换后完成相关习题 ，要求抄写在课本上 1. hunger n.v.[U] 饥饿；欲望；（使）饥饿→ hungry adj.饥饿的 2. expand v. 使变大；伸展→ expansion n.[U,C]扩大；扩展 3. satisfy vt. 满足，使相信，使满意→ satisfied adj. 对……表示满意→satisfactory/satisfying adj. 满意的，令人满意的 →satisfaction n. 满意 4. free adj.adv.自由的(地)；免费的(地) vt. 解放→ freedom n.自由 5. equip v. 配备，装备→ equipment n.[U] 装备；设备 6. discover vt. 发现，找到 → discovery n发现→ discoverer n. 发现者 二、重点词词形变换 1. The chemical lab is ________ with plenty of modern _________. (equip) 2. To his __________, everybody seems to be _________ by this question. (confuse) 3. Mike has been __________ for his success in his career. (struggle) 4. “I have been _________ not being there when my mother died.” Steven said ________. (regret) 5. There has been a dramatic ________ in the release of carbon dioxide since the government took every measure to _________ it. (reduce) 6.It is ________to think about so much work to do. I have to disconnect my mobilephone in order not to be ________. (disturb) 7. He has Chinese ________. Our newspaper is a ________newspaper. (nation) 8. Columbus is said to have ________ America in 1492. (discover) 三、课文回顾 Born into a poor farmer’s family in 1931, Yuan Longping, one of China’s most famous scientists, 1_________(work) the land to do his research. His 2_________ (sunburn) face and arms and his slim, strong body are just like those of millions of Chinese farmers, 3____ ___whom he has struggled for the past five decades. Since he 4__________(graduate) from Southwest increase rice harvests 5_________ expanding the area of the fields. 6________(Owe) to his research, the UN has more tools to rid the world 7___ __ hunger and the farmers are producing harvests twice as large as 8___ ______. Rich and famous 9________ he is, he doesn’t care about it and is satisfied with his life. Long ago Dr Yuan had a dream about rice plants as tall as sorghum. Now he has 10________ dream to export his rice so that it can