我答应我妈妈要帮她做家务。等她出门后,我却情不自禁地玩起了电脑。当我看钟表的时候,发现我妈妈再过10分钟就回来了。我只能求我弟弟帮忙。在他的帮助下,我终于摆脱了困境。 答案:①help her with ②couldn't help playing ③I couldn't help but ask ④with the help of ⑤helped out 1.It was a time when the killer whales, or “killers” as they were then called, helped ... 那个时期,虎鲸(当时被称为杀手)帮助…… 句中的It was a time when为一固定句型,意为“这是/那是……的时期”。 归纳拓展 It/This/That was a time when ...是一个固定句型,在该句中when引导定语从句修饰a time,主从句中的谓语动词用一般过去时。 答案:①when the two countries were at war ②when I hated to go to school
2.The sea was rough that day and it was difficult to handle the boat. 那一天,大海很不平静,控制船只很难。 句中的it was difficult to handle the boat为一固定句型,其中it为形式主语,代替动词不定式to handle the boat。
归纳拓展 It is/was +adj. for sb. to do sth.与It is/was +adj. of sb. to do sth. 的区别: 前者表示事物的特征、特点,常用easy, hard, difficult, interesting, impossible等形容词;后者表示人物的性格、品德、主观感情或态度,常用kind, good, nice, clever, brave, polite, careless, selfish等形容词。 答案:①for ②of 基础知识巩固
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