It’s difficult for two or more people to work on a PowerPoint presentation simultaneously, as Office doesn’t have the same collaboration features offered by Google Slides. One way around this problem is to combine PowerPoint presentations into a single file.
两个或两个以上的人很难同时处理PowerPoint演示文稿，因为Office不具备Google幻灯片提供的相同协作功能。 解决此问题的一种方法是将PowerPoint演示文稿合并到一个文件中。
Merging two PowerPoints can be done by either importing the slides using the “Reuse Slides” option or by using the copy-and-paste method instead. These instructions are designed to work for the latest versions of Office, including Office 2016 and 2019, as well as Office 365 and Online. You may find the instructions vary for older versions of PowerPoint.
可以通过使用“重新使用幻灯片”选项导入幻灯片或使用复制粘贴方法来合并两个PowerPoint。 这些说明旨在用于最新版本的Office ，包括Office 2016和2019，以及Office 365和Online。 您可能会发现说明与旧版PowerPoint不同。
使用“重复使用幻灯片”选项组合PowerPoint文件 (Combining PowerPoint Files Using the Reuse Slides Option)
The “best” method for merging PowerPoint files, or at least the method that PowerPoint officially supports, is to use the “Reuse Slides” option. This feature merges the content of one presentation file into another, matching the theme of the new presentation file in the process.
合并PowerPoint文件的“最佳”方法，或者至少PowerPoint正式支持的方法，是使用“重复使用幻灯片”选项。 此功能将一个演示文稿文件的内容合并到另一个文件中，从而在此过程中匹配新演示文稿文件的主题。
To do this, open your PowerPoint presentation file—this is the file you’re looking to merge into. In the “Home” tab on the ribbon bar, select the “New Slide” button and then click the “Reuse Slides” option at the bottom of the drop-down menu that appears.
为此，请打开您的PowerPoint演示文稿文件，这是您要合并到的文件。 在功能区栏的“主页”选项卡中，选择“新建幻灯片”按钮，然后单击出现的下拉菜单底部的“重复使用幻灯片”选项。
A menu will appear on the right. Click the “Browse” button to locate the PowerPoint presentation file that you want to merge into your open file.
菜单将出现在右侧。 单击“浏览”按钮，找到要合并到打开文件中的PowerPoint演示文稿文件。
Locate your second PowerPoint file and then click the “Open” button to insert it.
找到您的第二个PowerPoint文件，然后单击“打开”按钮将其插入。
A list of slides from your second presentation will appear in the “Reuse Slides” menu on the right.
第二个演示文稿中的幻灯片列表将显示在右侧的“重复使用幻灯片”菜单中。
First, you’ll need to decide on the formatting for your inserted slides. If you want to keep the format (including the theme) from the original presentation, make sure that the “Keep Source Formatting” checkbox is enabled at the bottom of the “Reuse Slides” menu. If you don’t check this, your inserted slides will have the style of the open presentation applied to them.
首先，您需要确定插入幻灯片的格式。 如果要保留原始演示文稿的格式(包括主题)，请确保在“重复使用幻灯片”菜单的底部启用了“保留源格式”复选框。 如果您不选择此项，插入的幻灯片将具有打开的演示文稿的样式。
To insert individual slides, right-click a slide and then select the “Insert Slide” option. Otherwise, click the “Insert All Slides” to copy all of the slides into your open PowerPoint presentation.
要插入单个幻灯片，请右键单击幻灯片，然后选择“插入幻灯片”选项。 否则，请单击“插入所有幻灯片”以将所有幻灯片复制到打开的PowerPoint演示文稿中。
Your slide (or slides) will then be inserted into the open presentation, immediately underneath the currently selected slide. With your PowerPoint files combined, you can then save your merged file by clicking File > Save or Save As.
然后，您的幻灯片(或多个幻灯片)将被插入到打开的演示文稿中，位于当前所选幻灯片的正下方。 合并PowerPoint文件后，您可以通过单击文件>保存或另存为来保存合并的文件。
复制和粘贴PowerPoint幻灯片 (Copying and Pasting PowerPoint Slides)
While the “Reuse Slides” method allows you to change the format of your slides before you insert them, you can also combine PowerPoint files by copying the slides from one open PowerPoint file and inserting them into another.
尽管“重用幻灯片”方法允许您在插入幻灯片之前更改幻灯片的格式，但是您还可以通过从一个打开的PowerPoint文件复制幻灯片并将其插入到另一个幻灯片中来组合PowerPoint文件。
To do this, open a PowerPoint presentation and select the slides you want to copy from the slide selection menu on the left. From there, right-click on the selected slides and then press “Copy” to copy them to your clipboard.
为此，请打开PowerPoint演示文稿，然后从左侧的幻灯片选择菜单中选择要复制的幻灯片。 从那里，右键单击选定的幻灯片，然后按“复制”将其复制到剪贴板。
Switch to the PowerPoint presentation you’re looking to paste your slides into and then, in the slide selection menu on the left, right-click at the position you want to stick your slides.
切换到要查找幻灯片的PowerPoint演示文稿，然后在左侧的幻灯片选择菜单中，右键单击要粘贴幻灯片的位置。
To paste the slides and apply the theme of the open presentation file to them, click the “Use Destination Theme” paste option.
要粘贴幻灯片并将打开的演示文稿文件的主题应用于它们，请单击“使用目标主题”粘贴选项。
To keep the original theme and formatting, select the “Keep Source Formatting” paste option instead.
要保留原始主题和格式，请选择“保留源格式”粘贴选项。
The slides you paste will then appear in your new presentation at the position you selected. You can then save the merged file by clicking File > Save or Save As.
您粘贴的幻灯片将出现在新演示文稿中所选位置。 然后，您可以通过单击文件>保存或另存为来保存合并的文件。
翻译自: https://www.howtogeek.com/660584/how-to-combine-powerpoint-presentations/