Question

This book will show the readers ______ can be used in other contexts.

A．how that they have observed	B．that how they have observed
C．how what they have observed	D．that they have observed

Answer 1

C

解析试题分析：句意：这本书将向读者展示他们所观察到的东西怎样被用到上下文中。这里how引导的是宾语从句，在从句中what they have observed是主语，what在引导的主语从句中作宾语。that在名词性从句中不做成分，故排除；故选C。
考点：考查宾语从句的用法。
点评：本题难度适中。宾语从句是高中阶段的重难点之一，需要考生有分析理解复杂的句子结构的能力，能够正确理解句子的语境，熟练掌握关系词的意义及句法功能。
即学即练：She is not ______she was a few years ago.
A. how    B. that  C. what    D. where
解析：C。句意：她已经不是几年前的她了。