Unit 1 Words and Expressions 词汇课件-2023-2024学年高中英语人教版（2019）选择性必修第一册

X1U1 PEOPLE OF ACHIEVEMENT 词汇1 Learning objectives : 1. Master the pronunciation and spelling of the words from physiology ~ defeat through activities in class. 2. Grasp some important usages of these words by understanding and practicing. 知识检测——切西瓜 obtain commit crucial objective vital evaluate distinct defeat acknowledge 单词精讲 1. crucial /'kruːʃəl/ adj.至关重要的；关键性的 ______________ adv. 关键地；至关重要地 crucially significant, important ___________________________对...是至关重要的 ___________________________在...中扮演重要角色 ___________________________...是至关重要的 核心用法 be crucial to/for play a crucial role/part in... It is crucial that...(should) do 2. vital adj. 必不可少的;极其重要的;充满生机的 _______ adv. 极其;紧要地;生死攸关地 vitally ___________________________对...是至关重要的 ___________________________……是十分重要的(从句用虚拟语气, should可省) 核心用法 be vital to/for It is vital that…(should) do… were 1. As we all know, a balanced diet is vital_________ our health. 2. It is crucial for students______________(build) a proper attitude. 3. It is crucial that the problem _______________________(solve) immediately. 4. The support of our fans ______________________（对…是至关重要的）our winning the Super Cup. to/for to build (should) be solved is crucial to/for 即学即练 commit & committed 一、写出下列句子中画线部分的汉语释义。 This is a man who has committed a crime(犯罪活动). The government must commit itself to improving health care. ____________ 3. A lot of money has been committed to this project. ____________ 犯罪 承诺 / 保证 投入 3. commit v①承诺;保证　②忠于;全心全意投入③犯（错误、罪行） 　 ____________________adj. 尽心尽力的;坚定的;坚信的 ____________________n. 承诺,保证；（对工作或某活动）献身；奉献 committed commitment committed---committing _________________________犯罪 _________________________致力于，委身于 _________________________承诺/保证做某事 _________________________做出承诺 核心用法 commit a c