感官動(dòng)詞 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示動(dòng)作的完整性，真實(shí)性;+doing 表示動(dòng)作的連續(xù)性，進(jìn)行性

I saw him work in the garden yesterday.

昨天我看見(jiàn)他在花園里干活了。(強(qiáng)調(diào)"我看見(jiàn)了"這個(gè)事實(shí))

I saw him working in the garden yesterday.(強(qiáng)調(diào)"我見(jiàn)他正干活"這個(gè)動(dòng)作)

昨天我見(jiàn)他正在花園里干活。

典型例題

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。因題意為，他們看著她長(zhǎng)大，因此強(qiáng)調(diào)的是成長(zhǎng)的過(guò)程，而非正在長(zhǎng)的動(dòng)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 playingC. playD. to play

相關(guān)內(nèi)容：

省to 的動(dòng)詞不定式

動(dòng)詞不定式的否定式

語(yǔ)法：名詞性wh-從句