Unit 2 What a day - 六年级英语上册重难点突破题（译林版三起）

Unit 2 What a day 专项练习5 重难点突破题 一、不规则动词过去式的变化 解析： 1.动词原形和其过去式同形,如:cut-cut, let-let, read-read, put-put。 2.将动词中的字母 i, o, u 变为 a,如: drink-drank, become-became, run-ran。 3.将动词中的字母 i 变为 o,如: drive-drove, write-wrote。 4.变为-ew结尾,如:know-knew, throw-threw, draw-drew, fly-flew。 5.变为-ought/-aught 结尾,如: buy-bought, catch-caught。 6.以 eep 结尾的动词,变 eep 为 ept, 如: keep-kept, sleep-slept, sweep-swept。 7.以 end 结尾的动词,变 end 为 ent,如: send-sent, spend-spent。 8.以 ay 结尾的动词,变 ay 为 aid,如: pay-paid, say-said。 9.动词原形和其过去式完全不同,如:am/is-was, are-were, can-could, eat-ate。 跟踪练习 一、用所给词的适当形式填空。 1. The students _______（go） to the park by bike last Saturday. 2. Alice ______（eat） some snacks and fast food for lunch yesterday. 3. My mother ______（make） a new dress for me five days ago. 4. They talked to the young man for a long time. At last, they ______ （let） him go. 5. She _______（throw） the big apple into the bag this morning. 二、一般过去时的否定句 解析 一般过去时的否定句主要有以下几种结构: 1.含有 was/were 的一般过去时的否定句 句型结构为"主语+ was not（wasn't）/were no（weren't）+其他."。 例句: I wasn't at home yesterday. 昨天我不在家。 Mike and Tim weren't in the bedroom just now. 迈克和蒂姆刚才不在卧室里。 2.含有情态动词 could 的否定句 句型结构为"主语+ could not（couldn’t）+动词原形（+其他）."。 例句: He couldn't read English six years ago. 六年前他不会读英语。 3.含有实义动词的一般过去时的否定句 句型结构为"主语+ did not（didn't）+动词原形（+其他）."。 例句: We didn't watch the flower show in the park last Sunday. 上个星期日我们没有在公园里看花展。 跟踪练习 二、按要求完成句子。 1. She could make clothes for the doll. （改为否定句） She ___________ make clothes for the doll. 2. Paul is good at playing football now. （用 last year 替换 now 改写句子,并将句子改为否定句） Paul ___________ good at ___________ football last year. 3. We played games and watered flowers on that day. （改为否定句） We ___________ _________ games ___________ __________ flowers on that day. 三、描述过去天气的句型 解析 1.描述过去天气的句型结构为"It was+表示天气的形容词（+其他）.",It 在结构中指代天气,因为描述的是过去的天气,所以 be 动词用 was。 思维拓展 描述过去的天气还可以用句型“The weather became+表示天气的形容(+其他).”。 例句: It was rainy yesterday, so we stayed at home. 昨天下雨,所以我们待在了家里。 At last, the weather became windy and cold.