Unit 4 单元知识点 2023-2024学年人教版英语九年级全册

九年级4单元知识点 1. used to do sth “过去常常做某事” Eg: Aron used to climb mountains.“阿伦过去常常爬山。” *否定形式为: Sb. didn’t use to do sth.“某人过去不做某事。” *一般疑问句: Did sb. use to do sth.“某人过去做某事吗?” *反义疑问句: 用did +主语/ didn't +主语? Eg: He didn't use to drink, did he? 他过去不经常喝酒,对吗? ②use sth. to do sth. “用某物做某事” Eg: please use this pencil to draw pictures. “请用这支铅笔画画。” ③be used to do sth. “被用来做某事”= be used for sth. Eg: The knife is used to cut vegetables. ④be/get used to doing sth. “习惯做某事” Eg: Aron is used to taking risks.“阿伦习惯冒险。” 2. What’s sb. like? 某人怎么样?/某人是什么样的人? 用于提问性格或样貌。 Eg:What's Alice like? - She's shy. 3. What do/does/did sb. look like? 某人长什么样?用于提问外貌。 Eg:What does your father look like? 你父亲长什么样? He is tall and strong. 他是又高又强壮的。 4. friend (n.) 朋友 -friendly (adj.) 友好的-friendship (n.) 友谊 5. humor (n.) 幽默-humorous (adj.) 幽默的-humorist (n.) 幽默风趣的人 6. silent (adj.) 沉默的-silence (n.) 沉默-silently (adv.) 默默地,沉默地 keep/remain/be silent 保持沉默 7. brave (adj.) 勇敢的-bravery (n.) 勇敢(的行为或态度)-bravely (adv.) 勇敢地 8. help (v./n.)帮助-helpful (adj.) 有帮助的-helper(n.) 帮手 1 help sb. 帮助某人 Eg: Nobody can help me. 2 help sb. (to) do sth. 帮助某人做某事 Eg: Luna helps me study English. 3 help sb. with sth. 在某方面帮助某人 Eg: Luna helps me with English. 4 help oneself (to…) 随便吃/喝/用… Eg: Help yourselves to some fruit, kids. 5 with one's help 在某人的帮助下 Eg: With Tom’s help, I finish my homework. 6 with the help of 在……的帮助下 Eg:With the help of my puppy, I find my missing key. 在我狗狗的帮助下,我找到了丢失的钥匙。 7 can't help doing sth. 情不自禁做某事 Eg: This film is so moving that I can’t help crying. 这部电影太令人感动了以至于我情不自禁地哭了。 8 be helpful to sb. 对……有帮助 Eg: Guide dogs are helpful to the blind. 导盲犬对盲人是有帮助的。 9. so +adj./adv. +that 从句(肯定结构)可以和adj./adv.+enough to do sth. 互换。 Eg: Tom is so clever that he can work out the maths problem. 汤姆如此聪明以至于他能解算出这道数学题。 = Tom is clever enough to work out the maths problem. 汤姆足够聪明能计算出这道数学题。 10. so +adj./adv. +that 从句(否定结构)可以和 not +adj./adv.+enough to do sth. 或者too …to的互换。 Eg: The man is so old that he can't carry the heavy box. 这个人如此年老以至于他不