一般现在时的特殊疑问句:以 “How often...”(多久一次)、“When...”(什么时候)、“What time...”(几点)等疑问词引导,询问日常活动的频率、时间等,如 “How often do you go to the library? I go to the library once a week.” 注意助动词 do/does 的使用,当主语是第三人称单数时用 does,其他人称用 do。
频率副词:always(总是)、usually(通常)、often(经常)、sometimes(有时)、never(从不),用于描述动作发生的频率,放在实义动词之前,be 动词之后,如 “He usually gets up at 7 o'clock.”
Unit 4 Free Time
重点句型
“I like to.../ I like... ing” 表达喜好,例如 “I like to listen to music. I like painting.”
“What do you like to do in your free time?” 询问业余爱好,回答可以用 “I like to.../ I enjoy...”,如 “What do you like to do in your free time? I like to play games.”
动词不定式:作宾语,如 “I want to play basketball.”;作目的状语,如 “She goes to the park to fly a kite.” 动词不定式由 “to + 动词原形” 构成,其否定形式为 “not to + 动词原形”,如 “Tell him not to be late.”
like doing sth. 与 like to do sth. 的区别:like doing sth. 表示长期的爱好,强调习惯性;like to do sth. 表示偶尔的喜好,强调一次性或具体的某次行为,如 “I like reading books, but today I like to watch TV.”
Unit 5 Nature and Culture
重点句型
“... is made of/from...” 表示 “由…… 制成”,能看出原材料用 be made of,看不出原材料用 be made from,如 “The desk is made of wood. The paper is made from bamboo.”
“Which is + 比较级,... or...?” 用于比较两个事物,如 “Which is bigger, the sun or the moon?” 以及 “Which is the + 最高级,...,... or...?” 用于比较三个或以上事物,如 “Which is the tallest, Tom, Jack or Peter?”
一般现在时被动语态:由 “be + 过去分词” 构成,表示主语是动作的承受者,如 “Paper is made from wood.” 注意与主动语态的转换,主动语态强调动作的执行者,被动语态强调动作的承受者。
形容词比较级和最高级:比较级用于两者之间的比较,一般在形容词后加 -er,或用 “more + 形容词原级” 构成,如 “bigger” 或 “more interesting”;最高级用于三者或三者以上的比较,在形容词后加 -est,或用 “the most + 形容词原级” 构成,如 “biggest” 或 “the most interesting”,且最高级前要加 the,如 “This is the most beautiful place I have ever been to.”
Unit 6 Summer Vacation
重点句型
“What will... do in the summer vacation?” 询问暑假计划,回答 “I will...”,例如 “What will you do in the summer vacation? I will travel to Beijing.”
“Where are you going...?” 询问去哪里,回答 “I'm going to...”,如 “Where are you going this summer? I'm going to Shanghai.”
一般将来时:will + 动词原形,如 “I will go to the beach.”;be going to + 动词原形,常表示计划、打算做某事或有迹象表明即将发生某事,如 “She is going to visit her grandparents.” 两者的区别在于,will 更侧重临时的决定,be going to 更强调事先的计划和打算。