Have you seen Mrs.Brown?选择Have you seen Mrs.Brown?She was seen ___ the guests at the gate .Now she may be in the kitchen.a.to be greetingb.to greetc.greetingd.greet

Have you seen Mrs.Brown?选择Have you seen Mrs.Brown?She was seen ___ the guests at the gate .Now she may be in the kitchen.a.to be greetingb.to greetc.greetingd.greet
Have you seen Mrs.Brown?选择
Have you seen Mrs.Brown?
She was seen ___ the guests at the gate .Now she may be in the kitchen.
a.to be greeting
b.to greet
c.greeting
d.greet

Have you seen Mrs.Brown?选择Have you seen Mrs.Brown?She was seen ___ the guests at the gate .Now she may be in the kitchen.a.to be greetingb.to greetc.greetingd.greet
C

b. to greet

B

C 过去被看见正在做某事。

A过去一直持续的动作，用ing形式
CD排除，因为这里是被动语态
B排除，greet 为持续性动词

选c

因为后面不能接 to 没有这个

选“C“ 。
was seen 完整理解应该是有人看到她当时在门口祝福"着"客人，是一种进行中的状态，所以不选“D”。至于A和B，因为是过去已经发生了的事情，现在还有可能正在发生着，所以后面不能有“To”.
如果是 She was told to be greeting the guests at the gate。。。这种情况下应该选A
语法学的不好，解释的不一定有道...

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选“C“ 。
was seen 完整理解应该是有人看到她当时在门口祝福"着"客人，是一种进行中的状态，所以不选“D”。至于A和B，因为是过去已经发生了的事情，现在还有可能正在发生着，所以后面不能有“To”.
如果是 She was told to be greeting the guests at the gate。。。这种情况下应该选A
语法学的不好，解释的不一定有道理。但我一直习惯这么用，应该没有问题。

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b

C本题不强调完整性
分析：
感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示动作的完整性，真实性；+doing 表示动作的连续性，进行性

I saw him work in the garden yesterday.
昨...

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C本题不强调完整性
分析：
感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示动作的完整性，真实性；+doing 表示动作的连续性，进行性

I saw him work in the garden yesterday.
昨天我看见他在花园里干活了。(强调"我看见了"这个事实，动作确实发生过了)
I saw him working in the garden yesterday.（强调"我见他正干活"这个动作，看见动作正在进行）
昨天我见他正在花园里干活。
典型例题
1）They knew her very well. They had seen her ___ up from childhood.
A. grow B. grew C. was growing D. to grow
答案：A。因题意为，他们看着她长大，因此强调的是成长的过程，而非正在长的动作，因此用see sb do sth 的句型。
2）The missing boy was last seen ___ near the river.
A. playing B. to be playing C. play D. to play
答案A. 本题强调其动作，正在河边玩，应此用see sb. doing sth句型。

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