可以省略.不能省略的情況為：
賓語從句不省略that的幾種情況
1.當(dāng)that作learn,answer,suggest,explain,agree,wonder,prove,mean,state,feel,hold等動(dòng)詞的賓語時(shí);
He answered that he was from Austria.他說他是奧地利人.
She answered that she preferred to eat alone.她回答說她愿意獨(dú)自吃.
I don’t wish to imply that you are wrong.我無意暗示你錯(cuò)了.
The newspapers have implied that they are having an affair.報(bào)紙報(bào)道暗指他們有染.
2.當(dāng)賓語從句較長(zhǎng)時(shí);
The dealer told me how much he was prepared to pay for my car and that f could have the money without delay.
那個(gè)商人告訴我他準(zhǔn)備出多少錢買我的汽車,并說我會(huì)立即收到款.
3.賓語從句位于句首時(shí).
That our team will win,I believe.我相信我們隊(duì)會(huì)贏.
4.當(dāng)主語謂語動(dòng)詞(包括非謂語動(dòng)詞)與賓語從句之間有插入語時(shí);
Little Alice didn't know,I'msure,that her sister was going to America.我確信,小艾麗斯不知道她的姐姐很快就要去美國了.
We hope,on the contrary,that he will stay at home with us.恰恰相反,我們希望他和我們呆在家里.
5.當(dāng)一個(gè)動(dòng)詞帶有兩個(gè)或兩個(gè)以上賓語從句時(shí),此時(shí)第一個(gè)that可以省略,第二個(gè)以及其他的that不可以省略;
I hope (that) I can get a good mark and that I can go to collage
He said (that) the book was very interesting and that(不省略) all the children like to read it.
The teacher told the students (that) they should hand in their homework the next day and that the homework must be signed names by their parents.
老師告訴學(xué)生他們要在第二天交上作業(yè),并且作業(yè)必須由家長(zhǎng)簽名.
6.當(dāng)賓語從句中的主語是this,that或this,that做主語的定語時(shí);
7.當(dāng)賓語從句有雙賓語中的間接賓語時(shí);
He told me that he was leaving for Japan.他告訴我他要去日本
當(dāng)that 賓語從句是雙賓語中的直接賓語時(shí),that一般不宜省略.例如：
　　I will never tell anyone that you have ever been there.我絕對(duì)不會(huì)告訴別人你曾經(jīng)去過那兒.
8.當(dāng)賓語從句的主語是非謂語動(dòng)詞或主語從句時(shí);
9.當(dāng)主語中的謂語動(dòng)詞是固定詞組時(shí);
Mary has made up her mind that she will study hard for the scholarship,so she can have the chance to go abroad for further study.
瑪麗下定決心努力學(xué)習(xí)以獲得獎(jiǎng)學(xué)金資格,這樣她就有機(jī)會(huì)出國深造了.
10.當(dāng)賓語從句有it做其先行詞時(shí);即 it作形式賓語時(shí).
I think it necessary that he should stay here.我們認(rèn)為他有必要留在這里.
11.在直接引語中,轉(zhuǎn)述分句把賓語從句隔開時(shí).或that從句單獨(dú)回答問題時(shí).
—What did he hear?他聽說了什么事?
—That Kate had passed the exam.(他聽說)凱特考試及格
12.在except等介詞后.如：
He has no special fault except that he smokes too much.他除了抽煙太多之外,沒有什么特別的毛病.
14.在較為正式或不常用的動(dòng)詞（如reply,object）后.如：
He replied that he disagreed.他回答說他不同意.
15.當(dāng)主句的狀語部分位于that 賓語從句之前時(shí),that不宜省略.例如：
　　Jane realized at once that she must do with it herself.
珍立刻意識(shí)到她必須親自處理那件事.(如省略that,at once也可能修飾從句,是表示“立刻意識(shí)到……”,還是表示“立刻去處理……”,較為含糊)
16.Tom promised that if he could earn as much as 500 dollars in this month,he would buy a computer for his brother.
湯姆許下諾言,如果他在這個(gè)月里能夠賺到500美元,他就給他的弟弟買臺(tái)電腦.