宾语从句的否定转移

主句的谓语动词是think, believe, imagine, suppose, consider, expect, fancy, guess等，并且主句的主语是第一人称而且为一般现在时，从句的否定词一般要转移到主句上来，其反义疑问句一般与宾语从句一致。
I don't think (that) he will come to my party. （对）
而不能说成I think he won't come to my party. （错）
我认为他不会来我的舞会。
I don't believe that man is killed by Jim, is he?
我认为那个人不是Jim所杀的，是不是？
如果宾语从句中有某个含有否定意义的形容词或副词，其反义疑问句要用肯定形式。
We find that he never listens to the teacher carefully, does he?
我们发现他从来不仔细听老师讲课，是不是？

宾语从句的时态和语序

当主句为现在时或将来时，宾语从句的时态一般不受主句的时态所影响。当主句为过去时，从句就会出现三种可能。
1. 主句过去时+从句一般过去时或过去进行时表示与主句谓语动词动作同时发生
I only knew that he was studying in a western country, but I didn't know what country he was in.
我只知道他当时在西方的一个国家读书，可不知道是哪个国家。
He asked me if I was reading the story The Old Man and the Sea when he was in.
他问我他进来的时候我是否正在读《老人与海》。
2. 主句过去时+从句过去完成表示该动作发生在主句谓语动作之前
He told me that he had told Mary about the meeting already.
他告诉我他已经把有关会议的事情告诉了Mary。
3. 主句过去时+从句谓语过去将来时表示该动作发生在主句谓语动作之后
The reporter asked if the government would take necessary measures to put down the to-do.
记者问政府是否会采取必要的措施镇压骚乱。
4. 特殊
若从句叙述的是客观真理、自然现象或永恒不变的规律时，则不受主句时态的限制，仍用一般现在时
The teacher said that the moon goes around the earth yesterday.
老师昨天说月亮围着地球转。
Our teacher told us light travels much faster than sound.
老师告诉我们光传播的速度比声音快得多。
They knew the sun is much bigger than the earth then.
他们那时就知道太阳比地球大得多。
He said that one and one makes two.
他说一加一等于二。

宾语从句的间接引语

概念：当直接引语是特殊疑问句，改为间接引语时，用原句中的疑问词做连接词，疑问语序改为陈述语序。
“What do you want?” he asked me.
→He asked me what I wanted.
“你想要什么？”他问我。
→他问我想要什么。
He asked her, “Where are you going?”
→He asked her where she was going.
他问她：“你去哪儿”
→他问她她去哪儿。
“How much have we spent on petrol this year?” Susan asked her husband.
→Susan asked her husband how much they had spent on petrol that year.
苏姗问她丈夫那一年在汽油上花了多少钱。
The secretary said: “I haven't received the letter today.”
→The secretary said that she hadn't received the letter that day.
秘书说她那天没有收到那封信。