【题目】John is a tall man weighing as much as 100 kilogram.Though he is large，but he fears dogs.One day he was taking walk when a dog suddenly appeared from somewhere.He became so nervous that he ran as fast as he can.The dog kept run after him and it was getting closer.In the danger situation，John decided to climb up a tree to avoid the dog.Unfortunate，it was not an easy job.He hadn't gone up very high when the dog stood right above the tree.The dog jumped up and bit it's teeth into his bottom.John fell right onto the dog's head，that killed it immediately.
在线课程【答案】
【解析】1.根据100，可知用名词复数形式，kilogram--- kilograms。
2.though和but不能在同一句中出现，故把but去掉。
3.固定搭配：take a walk散步，故在take 和walk之间加a。
4.根据句意可知用一般过去时态，故把can---could。
5.固定词组：keep doing sth.故把run---running。
6.形容词修饰名词，故把danger---dangerous。
7.副词修饰整个句子，故把Unfortunate--- Unfortunately。
8.习惯用法：under the tree在树底下。故把above---under。
9.句意：它的牙齿。此处是同义词的考查，故把it’s---its。
10.整个句子做先行词，后面是which引导的非限制性定语从句，故把that---which。