text 课本2Directions: Complete the following sentences by translating the Chinese into English, using the emphatic sentence structure “It is / was... that / who...”.Model____ (正是在这里你会真正发现) what learning is about.It is here that you will truly discover what learning is about.1.____ (正是山姆认为) that the greatest achievement of the last century was the invention of computers.____ ____ ____ ____ 2.____ (正是在我本科学习期间) I found out what my passion was.____ ____ ____ ____ 3.____ (正是孩子的好奇心和创造力) make many educators believe that teaching should stimulate children's interest in learning.

本题考查强调句型的正确使用。解题核心在于：

1. 确定被强调的成分（主语、宾语、状语等）；
2. 选择正确的引导词（that或who）；
3. 调整时态（根据原句时态选择is或was）。
   关键点：强调句型结构为It is/was + 被强调成分 + that/who + 其余部分，需注意语序和引导词的搭配。

第1题

被强调成分：主语Sam（人），需用who引导。
步骤：

1. 原句结构：Sam thought that...
2. 调整为强调句：It was Sam who thought that...（注意时态为过去式was）。

第2题

被强调成分：时间状语在我本科学习期间，需用that引导。
步骤：

1. 原句结构：I found out... during my undergraduate studies
2. 调整为强调句：It was during my undergraduate studies that I found out...（时态为过去式was）。

第3题

被强调成分：主语孩子的好奇心和创造力（物），需用that引导。
步骤：

1. 原句结构：children's curiosity and creativity make...
2. 调整为强调句：It is children's curiosity and creativity that make...（时态为现在式is）。