Unit 2 重难点汇总 2022-2023学年人教版英语八年级上册

Unit 2 How often do you exercise? 重难点 重点词汇: 1. exercise (1) v. 锻炼,运动 · How often do you exercise? · I usually exercise three times a week. (2) n. 运动,(保持健康或培养技能的)一套动作,习题 (3) 〖注意〗当exercise解释为“运动”时,是不可数名词;当exercise解释为“(保持健康或培养技能的)一套动作,习题”时,是可数名词。 · My grandparents often do exercise in the morning.“做运动”,此时exercise是不可数名词 · Students do morning exercises at about 10 a.m. “做早操”,此时exercise是可数名词 2. housework n. 家务事,家务劳动 (不可数名词) · Mom has to do much housework every day. 3. full adj. 忙的,满的,充满的,饱的 常用短语:be full of...意为“装满......”,后接可数名词的复数形式和不可数名词 · Next week is quite full for me. · The bottle is full of water. · I ate three hamburgers an hour ago so I’m full now. 4. health n. 健康,人的身体(或精神)状态 health的形容词形式是:healthy · She says it’s good for my health. · We should develop healthy habits. 5. result n. 结果,后果 · Mike told me the result of the game. 〖拓展〗result可作动词,常用短语有: (1) result from...意为“(因......)发生,(随......)产生” (2) result in...意为“导致,造成” · Many health problem result from what you eat. 很多健康问题是由你吃的东西引起的。 · Eating too much junk food will result in serious health problems. 吃太多垃圾食品会导致严重的健康问题。 6. hardly adv. 几乎不,几乎没有 hard adj. 坚固的,硬的;困难的;猛烈的;努力的 adv. 努力地;猛烈地;沉重地 · I can hardly believe him. · It’s hard for us to work out the problem. · The truth is that if we don’t work hard, we will lose the match. 〖注意〗很多学生认为hardly是hard的副词形式,但其实它们之间并无关系。 7. percent n. 百分之...(无复数形式) 与名词连用时,percent后要用of连接,结构为“数字+percent of+名词”。这一结构作主语时,谓语动词的单、复数形式与of后的名词的数保持一致。 · More than 70 percent of the earth is covered by water. · Nearly 50 percent of the students are against this plan. 8. through prep. 以,凭借,穿过 · We think the best way to relax is through exercise. 我们认为锻炼是最好的放松方法。 · The criminal got in through the window. 罪犯是从穿过窗户进来的。 〖拓展〗through和across through 指从立体空间的内部穿过 The horse ran through the forest. across 指从表面穿过 The horse ran across grassland. 9. about adv. 大约,左右 · I read English books about twice a week. · It’s about 7 p.m. now. 〖拓展〗about还可作介词,意为“关于” · American Teenager magazine asked her about her habits. · The