report them, and why.
What events to report 是“疑问词+不定式”结构，在句中作宾语。此结构中的不定式与前面的疑问代词有动宾关系，但不定式要用主动形式。
例如：
I really don’t know what to write at the moment.
4．The result is a better understanding of the world on all sides, leading to a future world where people
from all countries are respected and different views and opinions are tolerated.
Leading to…. 是现在分词短语作状语，表示结果。
例如：
Her father died in 1979, leaving her with four younger sisters.
四、语法复习
（一）动词不定式
动词不定形式：to+动词原形；或者省略to.
没有人称和数量的变化，具有名词、形容词和副词的特征，在句子中作谓语以外的成分。
1．作主语：What does it mean to be a scientist?
2．作宾语：People who listen to Hawking’s lecture find it difficult to understand him.
3．作表语：Nothing in life is to be feared. It is only to be understood.
4．作宾语补足语: He told me to bring some books for you.
5．作定语：The doctor told him he might not have more than twelve months to live.
6．作结果状语：Readers were pleased and surprised to find that a scientist could write about this work in a way that
ordinary people could understand.
7．目的状语：In order to get married, I needed a job, and in order to get a job, I needed a PhD.
8．某些固定的形容词搭配用于口语中，例如：Glad to meet you. Sorry to trouble you.
9．和常见的疑问词搭配作动词的宾语，相当于宾语从句（宾语从句的主语和主句的主语要一致）。
例如：
I don’t know what to say/what I should say. Could you tell me when to start/when I should start?
（二）过去分词作定语和表语
过去分词在句子中可以作定语、状语、表语和补足语，通常与句子中的某个名词有逻辑上的被动关系，有时还表示动作的完成或者状态。
1．作定语：单个的过去分词作定语放在名词的前面，过去分词词组作定语放在名词的后面，有时相当于非限制性定语从句。
例如：
a broken glass, the used books, in an organized way, experienced editor
Chen wrote about the efforts to bring stolen cultural relics to China.
I want to wrote about people addicted to drugs/who are addicted to drugs.
过去分词作后置定语时，有时有时态的区别，
例如：
Do you live in the building built last year?
I will live in the building being built now.
The building to be built will be for teaching.
过去分词作定语表示被动的和已经发生的动作；现在分词作定
