一、核心区别速览
二、分点详解（含句式、时态、从句标记）
（一）look over
1. 核心用法：侧重“快速审视、检查”，多用于对内容的初步评估或确认。
2. 句式结构：主语 + look over + 宾语（名词/代词/从句）
3. 时态&例句解析（关键成分用线标记）
一般现在时：She always looks over the notes (that she took in class) before exams.
（线标记：主语She；谓语looks over；宾语the notes，后接定语从句that she took in class；时间状语before exams）
一般过去时：The editor looked over the article and pointed out two spelling mistakes yesterday.
（线标记：主语The editor；谓语looked over；宾语the article；并列谓语pointed out；时间状语yesterday）
将来时：I will look over what you have finished and give comments this afternoon.
（线标记：主语I；谓语will look over；宾语从句what you have finished；并列谓语give；时间状语this afternoon）
（二）look through
1. 核心用法：侧重“仔细翻阅、逐一看”，多用于为找特定信息而深入查看。
2. 句式结构：主语 + look through + 宾语 + 介词短语（表目的/范围）
3. 时态&例句解析（关键成分用线标记）
现在进行时：He is looking through the newspaper to find the sports news now.
（线标记：主语He；谓语is looking through；宾语the newspaper；目的状语to find the sports news；时间状语now）
现在完成时：We have looked through all the files (that were stored in the cabinet), but the document is missing.
（线标记：主语We；谓语have looked through；宾语all the files，后接定语从句that were stored in the cabinet；转折连词but）
过去进行时：She was looking through old photos when her mom came in.
（线标记：主语She；谓语was looking through；宾语old photos；时间状语从句when her mom came in）
三、抽象图示意
look over：画一个人手持文件夹，快速翻页，旁边画“✓”（代表检查确认）。
look through：画一个人坐书桌前，手指逐页划文件，旁边画“”（代表仔细寻找）。
四、练习题及解析
1. 用“look over”或“look through”填空，并标记句子成分
The manager ___________ (look) the project plan that the team made just now.
They ___________ (look) the application forms to pick qualified candidates at the moment.
2. 答案及解析
答案：looked over
解析：时态为一般过去时（just now提示），标记：主语The manager；谓语looked over；宾语the project plan，后接定语从句that the team made。“经理快速看计划”符合“评估确认”，用look over。
答案：are looking through
解析：时态为现在进行时（at the moment提示），标记：主语They；谓语are looking through；宾语the application forms；目的状语to pick qualified candidates。“仔细翻申请表找候选人”符合“深入寻找”，用look through。
