第 1 题 · 高考
This tool is very handy, which makes it popular among workers.
核心词：handy ˈhændi adj. 方便的
这个工具很便利，这让它在工人中很受欢迎。
一般现在时which 非限制性定语从句短语 a handy tool短语 come in handy
This tool is very ___, which makes it popular among workers.
第 2 题 · 高考
He is prone to catching colds, because he does not wear enough clothes in winter.
核心词：prone prəʊn adj. 易于…的
他容易感冒，因为冬天穿得不够多。
一般现在时原因状语从句短语 be prone to短语 accident-prone
He is ___ to catching colds, because he does not wear enough clothes in winter.
第 3 题 · 高考
The northwestern part of the country is mountainous, which makes travel difficult.
核心词：northwestern ˌnɔːθˈwestən adj. 西北的
该国西北部多山，这使出行困难。
一般现在时which 非限制性定语从句短语 the northwestern part短语 northwestern China
The ___ part of the country is mountainous, which makes travel difficult.
