Unit 6 词汇学案 Understanding ideas部分 crime 词块：commit a crime 派生词：criminal seaside 合成词：sea (n 海) + side (n 边) suburb sub- (near 邻近) + urb (city 城市) → 邻近城市的区域 → 郊区 同根词：urban greedy 构词：greedy — greed 词块：be greedy for commit com- (together 一起) + mit (to send 送) → 将人送去承担义务等 → (使) 承担义务；(使) 作出保证 同根词：admit, permit, transmit 词块：commit a crime / mistake, commit sb / oneself to (doing) sth 派生词：committed, commitment, committee urban urb (city 城市) + -an (形容词后缀) newcomer new + come + -er flourish flour (= flower 花) + -ish (动词后缀) → 像花一样盛开 → 生长茂盛；兴盛 container contain (v 包含、容纳) + -er (……的物) garbage 词块：garbage classification estimate 词块：be estimated to be / have；it is estimated that ... 派生词：estimation migratory migrate (必修一 Unit 5) — migratory appreciate ap- (to) + prec (price) + -i- + -ate → 只有理解 (understand) 了商品的价值才会愿意出价购买该商品 → 理解 （基本义） 词块：appreciate (sb) doing sth, I’d appreciate it if … 派生词：appreciation, appreciative crucial 词块：be crucial to sb / sth, it is crucial for sb to do sth restrict re- (back 回) + strict (to draw tight 拉紧) → 限制；约束 派生词：restricted, restriction commit v commit: com- (together 一起) + mit (to send 送) → 将人送去承担义务等 → （使）承担义务；（使）作出保证 ① vt 犯（错误、罪行等）to do sth wrong or illegal： commit murder / a crime / a mistake Smoking is committing suicide slowly. ② vi & vt（使）承担义务；（使）作出保证 to make a definite agreement or promise to do sth： commit oneself to (doing) sth: The world has already committed to establishing a Climate Adaptation Fund. A talented scientist well known for his commitment to his country, Huang Danian committed himself to his research in geophysics. commit oneself to do sth: Both sides committed themselves to settle the conflicts peacefully. ③ vt 投入 to spend money or time on sth / sb： commit sth to (doing) sth: commit an hour to reading the newspapers every morning 【词汇拓展】 committed adj 尽心尽力的；坚定的： a committed member of the team He loved playing this instrument, and was committed to practicing it. commitment n ① [U] 投入；奉献 being prepared to give a lot of your time and attention to sth because you believe it is right or important： A career as an actor requires one hundred percent commitment. ② [C] 承诺；许诺；保证 a promise or agreement to do sth： commitment to do / doing sth: She has made a commitment to going bottle-free. ③ [C] 承诺的事 / 责任： I’m overworked at the moment — I’ve taken on too many commitments. estimate ■ vt [常用于被动语态]估计；估算；估价： ① estimate sth (at sth): They estimate the cost to repair at $800. ② be estimated to be / have: The tree is estimated to be at least 700 years old. ③ estimate / it is estimated + (that) 从句： The university estimates that living expenses for international students are around $8,450 a year. It is estimated that 80% o ... ...
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