a★考点 1 It's ____ to learn about the past.
句型 It's + adj. (形容词) + to do sth 表示“做某事……”。句子中的形容词常用于表示事物的特征、特点或客观形式,如 easy,hard,difficult,interesting,important 等。
It's very important to study English well. 学好英语很重要。
It's good to eat fruit. 吃水果好。
【例 1】—Is it easy (
—I don't think so.
A. to play
B. playing
C. play
D. plays
【例 2】(
A. It's
B. This is
C. They're
D. We are
句型 It's + adj. (形容词) + to do sth 表示“做某事……”。句子中的形容词常用于表示事物的特征、特点或客观形式,如 easy,hard,difficult,interesting,important 等。
It's very important to study English well. 学好英语很重要。
It's good to eat fruit. 吃水果好。
【例 1】—Is it easy (
A
) the guitar?—I don't think so.
A. to play
B. playing
C. play
D. plays
【例 2】(
A
) easy for students to get to school by bus.A. It's
B. This is
C. They're
D. We are
答案：例1：A
例2：A
例2：A
解析：
根据句型“It's + adj. + to do sth” 可知：例1空格处为不定式，例2空格处为It's
★考点 2 let 的用法
let 用作使役动词,表示“让”,其后接不定式的复合结构时,不定式不带 to,即“let sb do sth”,其否定句形式为“let sb not do sth”。
Let's go there. 我们去那里吧。
Let them stay in the classroom and do their exercises themselves.
让他们留在教室里自己做练习。
【例 3】Mary, let's ____ computer games this evening.
A. to play
B. play
C. plays
D. playing
【例 4】—Let's play volleyball.
—____
A. That sounds good!
B. Thank you.
C. Here you are.
D. You're welcome.
let 用作使役动词,表示“让”,其后接不定式的复合结构时,不定式不带 to,即“let sb do sth”,其否定句形式为“let sb not do sth”。
Let's go there. 我们去那里吧。
Let them stay in the classroom and do their exercises themselves.
让他们留在教室里自己做练习。
【例 3】Mary, let's ____ computer games this evening.
A. to play
B. play
C. plays
D. playing
B
【例 4】—Let's play volleyball.
—____
A. That sounds good!
B. Thank you.
C. Here you are.
D. You're welcome.
A
答案：1. 【例 3】
答案：B
解析：根据“let sb do sth”的用法，let's 后接动词原形，所以选 B。
2. 【例 4】
答案：A
解析：对于“Let's...”的提议，通常用“That sounds good!”等表示赞同的回答，所以选 A。
答案：B
解析：根据“let sb do sth”的用法，let's 后接动词原形，所以选 B。
2. 【例 4】
答案：A
解析：对于“Let's...”的提议，通常用“That sounds good!”等表示赞同的回答，所以选 A。