Unit3 Sea Exploration单词学案 2022-2023学年高中英语人教版选择性必修第四册

Knowledge is a measure, but practise is the key to it. 知识是珍宝,而实践是获取它的钥匙。 B7U3 Sea Exploration (Words and expressions) 课前预习案和课中探究案 【自主学习一】听录音，跟读单词。 【自主学习二】根据句子语境,理解划线单词的意思，指出其词性，并翻译句子。 1. The show has been extended for another six weeks. The extension of the subway will take several months. An extended family enriches life in many ways 2. Both powers withdrew their forces from the region. I got withdrawal symptoms after giving up smoking. 3. Social and political problems led to the outbreak of war. She is one of the most influential figures in local politics. These policies could cause severe economic and social dislocation. The public is always attracted to politicians who have the human touch. 4. She followed her mother into the medical profession. She never realized her ambition of becoming a professional singer. 5. A mixture of skill and good luck decided the outcome of the game. Put a small amount of the powder into a container and mix with water. I still have mixed feelings about going to Brazil. 6. Everyone was on their feet applauding wildly. When the applause had died down, she began her speech. 7. Nationalist parties united to oppose the government's plans. His family were adamantly opposed to the marriage. He knocked his opponent down three times in the first round. 8. They meant to finish her off, swiftly and without mercy. I think her death was a merciful release. How many people could still remember the merciless Tsunami? 9. The event is bound to attract wide press coverage. Robinson was sent to Italy to cover the 1990 World Cup. 【课堂探究一】词形变化：按要求填相应的单词，并在括号内填写中文意思 (仔细研读【自主学习二】句子，掌握和总结规律。) 1.____________ vt.扩展;使伸长;延长→____________ n.延伸，扩展，延长期→____________ adj.延长了的;扩展了的 2.____________vi.&vt. (使)撤回；撤离→ ____________ 过去式→____________过去分词→____________ n.撤回;退出(组织);(从银行账户中)提款，取款 3.____________n.政治；政治观点→____________ adj. 政治的→____________ n.从政者;政治家→____________ n.政策;方针 4.____________ n.职业;行业→____________ adj.职业的;专业的 5.__________