高考英语语法一轮复习——主语从句(共34张PPT)
It作形式主语
It作形式主语的四种常用句型
• It +be+名词+that从句 • It +be+形容词+that从句 • It +不及物动词+that从句 • It +be+动词的过去分词+that从句
1) It is + n. +从句 It is a pity(遗憾)/ a fact/a surprise that…
Make a sentence
30
Don’t know the answer
teacher angry
It makes the teacher angry that the child doesn’t know the answer.
Listen to the music clip, and find out the subject clauses
• Whether he will come to the meeting is not certain.
• It is not certain if he will come to the meeting.
• It is not certain whether he will come to the meeting.
连接词如何选用？
连接词的选用
1.从句中什么成分都不缺，用 that 2.从句中需要表“是否”的词，用 whether 3.其他，缺什么补什么 如缺“哪一个”的意思，
用 which 主语从句的连接词： • 连接词 that , whether • 连接代词 who(ever), whom(ever),
• 没能击垮你的造就一名勇 士
• put that thing on lighter • 步履轻盈
• doesn’t mean i’m over cause you’re gone
• 你的离开并不意味我的结 束
• what doesn’t kill you makes you stronger, stronger
引导主语从句在句首只能用whether,
Conclusion:
有it作形式主语的whether/if都可以.
主语从句的其他规则
看句子正误，并总结规律
• When he will come are a puzzle(谜). ×
• When he will come is a puzzle.
含主语从句的主句谓语动词多用
eg. 很奇怪，他竟没有来。 It is strange that__h_e__s_h_o_u_ld_n_o_t_c_o_m__e__.
• ②表示“据建议、据要求、据命令” • It+be+suggested/advised/ordered/requested/ commanded/ insisted/required that… 谓语形式为:(should) + V.原形
很遗憾)we lose the match. *__It_i_s_a__f_a_c_t _th_a_t_(这是事实)he cheated in the exam.
2) It is + adj. +从句 It is possible that... It’s certain that…
Correct or not?
10
*He will give up his job surprises all of
us.
×
That he will give up………
20 Translate the sentence
*_W__h_e_th_e_r__s_h_e_w__il_l _a_tt_e_n_d__th_e__m_e_e_t_in__g （她是否出席会议）is not certain.
_W__h_e_th_e_r_ we shall attend the meeting hasn't been decided yet.
20 Translate the sentence
*_T_h_a_t_t_h_e_y_n__e_e_d_h_e_l_p______________(他 们需要帮助)is quite clear.
*__It__is__r_e_p_o_r_t_e_d__th__a_t_(据报道)20 people were
killed in the accident.
※ 主语从句的虚拟语气
①表 “应该，惊讶、惋惜、遗憾”等意义 It is important /natural /necessary/strange that... 谓语形式为:(should) + V.原形
which(ever), what(ever)等
• 连接副词 where ,when ,why ,how
it
That he will refuse this piece of advice is impossible.
It is impossible that he will refuse this piece of advice.
decided yet.
×
Whether we will…………………………. decided yet.
20 Translate the sentence
*It is known to us___h_o_w__M_a_r_k_T_w__a_in___ _b_e_c_a_m__e__a_g_r_e_a_t_w_r_i_te_r__(马克.吐温怎样成 为一位伟大的作家).
据命令，所有乘客必须接受搜查 It was ordered that all the
passengers___(_s_h_o_u__ld_)_b__e_s_e__a_rc__h_e.d
主语从句的其他规则
看句子正误，并总结规律
• If he will come to the meeting is not certain. ×
been known yet.
×
……………………………. be held hasn’t been known yet.
Make a sentence
30
What
the cat did made cry
What the cat did made the baby cry.
10
用whether\if填空
work on time.
×
It is important that we should finish…..
Correct or not?
10
*That she wants to know is when the
party will be held .
×
What she wants to know is…….
• what doesn’t kill you makes you stronger
• 没能击垮你的让你愈加强 壮
• stand a little taller • 站得更高
• doesn’t mean i’m lonely when i’m alone
• 孤身一人并不代表我孤单 寂寞
• what doesn’t kill you makes a fighter
Make a sentence
30
report , get the highest points, match
It is reported that Yao Ming got the highest points in the match.
Correct or not?
10
*It is important that we will finish the
3. _____ he said at the meeting astonished everybody. A. Why B. What C. That D. Who
4. ____ is a fact that English is accepted as an international language. A. There B. This C. That D. It
*_I_t _o_c_c_u_r_re_d__t_o_m__e_t_h_a_t_(我突然想起)I forget to send the letter.
4) It + be +过去分词+从句
It is said that... It is known to all that... It is reported that...
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow.
3) It +不及物动词+从句
It happened that...
刚好…;碰巧…
It occurred to me that… 我突然想起…
*_I_t_h_a_p_p_e_n_e_d__t_h_a_t_(刚好)I came into the office at that time.
Pick up one number and finish the task in it, then you can get some points.
1 2 3 4 5 6 7 8 9 10
Correct or not?
10
*When the meeting will be held haven’t
• When will he come is a puzzle. ×
• When he will come is a puzzle.
主语从句一律用陈述语序，
Conclusion:
It作形式主语的四种常用句型
• It +be+名词+that从句 • It +be+形容词+that从句 • It +不及物动词+that从句 • It +be+动词的过去分词+that从句
1) It is + n. +从句 It is a pity(遗憾)/ a fact/a surprise that…
Make a sentence
30
Don’t know the answer
teacher angry
It makes the teacher angry that the child doesn’t know the answer.
Listen to the music clip, and find out the subject clauses
• Whether he will come to the meeting is not certain.
• It is not certain if he will come to the meeting.
• It is not certain whether he will come to the meeting.
连接词如何选用？
连接词的选用
1.从句中什么成分都不缺，用 that 2.从句中需要表“是否”的词，用 whether 3.其他，缺什么补什么 如缺“哪一个”的意思，
用 which 主语从句的连接词： • 连接词 that , whether • 连接代词 who(ever), whom(ever),
• 没能击垮你的造就一名勇 士
• put that thing on lighter • 步履轻盈
• doesn’t mean i’m over cause you’re gone
• 你的离开并不意味我的结 束
• what doesn’t kill you makes you stronger, stronger
引导主语从句在句首只能用whether,
Conclusion:
有it作形式主语的whether/if都可以.
主语从句的其他规则
看句子正误，并总结规律
• When he will come are a puzzle(谜). ×
• When he will come is a puzzle.
含主语从句的主句谓语动词多用
eg. 很奇怪，他竟没有来。 It is strange that__h_e__s_h_o_u_ld_n_o_t_c_o_m__e__.
• ②表示“据建议、据要求、据命令” • It+be+suggested/advised/ordered/requested/ commanded/ insisted/required that… 谓语形式为:(should) + V.原形
很遗憾)we lose the match. *__It_i_s_a__f_a_c_t _th_a_t_(这是事实)he cheated in the exam.
2) It is + adj. +从句 It is possible that... It’s certain that…
Correct or not?
10
*He will give up his job surprises all of
us.
×
That he will give up………
20 Translate the sentence
*_W__h_e_th_e_r__s_h_e_w__il_l _a_tt_e_n_d__th_e__m_e_e_t_in__g （她是否出席会议）is not certain.
_W__h_e_th_e_r_ we shall attend the meeting hasn't been decided yet.
20 Translate the sentence
*_T_h_a_t_t_h_e_y_n__e_e_d_h_e_l_p______________(他 们需要帮助)is quite clear.
*__It__is__r_e_p_o_r_t_e_d__th__a_t_(据报道)20 people were
killed in the accident.
※ 主语从句的虚拟语气
①表 “应该，惊讶、惋惜、遗憾”等意义 It is important /natural /necessary/strange that... 谓语形式为:(should) + V.原形
which(ever), what(ever)等
• 连接副词 where ,when ,why ,how
it
That he will refuse this piece of advice is impossible.
It is impossible that he will refuse this piece of advice.
decided yet.
×
Whether we will…………………………. decided yet.
20 Translate the sentence
*It is known to us___h_o_w__M_a_r_k_T_w__a_in___ _b_e_c_a_m__e__a_g_r_e_a_t_w_r_i_te_r__(马克.吐温怎样成 为一位伟大的作家).
据命令，所有乘客必须接受搜查 It was ordered that all the
passengers___(_s_h_o_u__ld_)_b__e_s_e__a_rc__h_e.d
主语从句的其他规则
看句子正误，并总结规律
• If he will come to the meeting is not certain. ×
been known yet.
×
……………………………. be held hasn’t been known yet.
Make a sentence
30
What
the cat did made cry
What the cat did made the baby cry.
10
用whether\if填空
work on time.
×
It is important that we should finish…..
Correct or not?
10
*That she wants to know is when the
party will be held .
×
What she wants to know is…….
• what doesn’t kill you makes you stronger
• 没能击垮你的让你愈加强 壮
• stand a little taller • 站得更高
• doesn’t mean i’m lonely when i’m alone
• 孤身一人并不代表我孤单 寂寞
• what doesn’t kill you makes a fighter
Make a sentence
30
report , get the highest points, match
It is reported that Yao Ming got the highest points in the match.
Correct or not?
10
*It is important that we will finish the
3. _____ he said at the meeting astonished everybody. A. Why B. What C. That D. Who
4. ____ is a fact that English is accepted as an international language. A. There B. This C. That D. It
*_I_t _o_c_c_u_r_re_d__t_o_m__e_t_h_a_t_(我突然想起)I forget to send the letter.
4) It + be +过去分词+从句
It is said that... It is known to all that... It is reported that...
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow.
3) It +不及物动词+从句
It happened that...
刚好…;碰巧…
It occurred to me that… 我突然想起…
*_I_t_h_a_p_p_e_n_e_d__t_h_a_t_(刚好)I came into the office at that time.
Pick up one number and finish the task in it, then you can get some points.
1 2 3 4 5 6 7 8 9 10
Correct or not?
10
*When the meeting will be held haven’t
• When will he come is a puzzle. ×
• When he will come is a puzzle.
主语从句一律用陈述语序，
Conclusion:
合集下载
高中英语主语从句讲解课件(36张ppt)
+(should) +do…
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow. *__It_i_s_o__b_v_io_u_s__th__a_t _(很明显)this measure is effective.
3) It + be +过去分词+从句
4.The reason why I study hard is that I want to go to a
key university. 表语从句
5.They believe in that she must still be single. 6.I know nothing about him except that he is living in
找出错误，并给出理由： 1.Where shall we spend the holiday isn’t
decided. we shall 2.You have made a mistake is a fact.
That you have 3. If the policeman will come is not certain.
Beijing 7. I don’t know whether he’s free or not. 8. Mary asked whether I was doing my homework or not. 9. I’m thinking of whether we should go fishing. 10. We are worried about whether it will rain tomorrow.
killed in the accident.
*_I_t_i_s_p_o_s_s_i_b_le__th__a_t _(很可能)she will come back tomorrow. *__It_i_s_o__b_v_io_u_s__th__a_t _(很明显)this measure is effective.
3) It + be +过去分词+从句
4.The reason why I study hard is that I want to go to a
key university. 表语从句
5.They believe in that she must still be single. 6.I know nothing about him except that he is living in
找出错误，并给出理由： 1.Where shall we spend the holiday isn’t
decided. we shall 2.You have made a mistake is a fact.
That you have 3. If the policeman will come is not certain.
Beijing 7. I don’t know whether he’s free or not. 8. Mary asked whether I was doing my homework or not. 9. I’m thinking of whether we should go fishing. 10. We are worried about whether it will rain tomorrow.
killed in the accident.
高考英语一轮复习主语从句课件
养成良好的答题习惯，是决定高考英语成败的决定性因素之一。做题前， 要认真阅读题目要求、题干和选项，并对答案内容作出合理预测;答题时，切忌 跟着感觉走，最好按照题目序号来做，不会的或存在疑问的，要做好标记，要 善于发现，找到题目的题眼所在，规范答题，书写工整;答题完毕时，要认真检 查，查漏补缺，纠正错误。总之，在最后的复习阶段，学生们不要加大练习量。 在这个时候，学生要尽快找到适合自己的答题方式，最重要的是以平常心去面 对考试。英语最后的复习要树立信心，考试的时候遇到难题要想“别人也难”， 遇到容易的则要想“细心审题”。越到最后，考生越要回归基础，单词最好再 梳理一遍，这样有利于提高阅读理解的效率。另附高考复习方法和考前30天冲 刺复习方法。
It is a pity that she has made such a mistake.
3.Whether he’ll come here isn’t clear.
It isn’t clear whether/if he’ll come here.
注意： 1.主语从句位于句首时,不能用if 引导。 2. 主语从句后置时, 可以用if引导。
English fluently now.
summary
主语从句
陈述句做主语从句 一般疑问句做主语从句 特殊疑问句做主语从句
形式主语
你作为G10的优秀学生代表，在上周参加了学校的校 庆活动。请你用英文写一篇演讲稿，谈一谈你的学习感 受以及对未来高中学习生活的展望。字数在80词左右。 （请运用至少两个本课所复习的主语从句）
That he will pass the exam is certain. It is certain that he will pass the exam. Whether he will pass the exam is uncertain. It is uncertain whether he will pass the exam.
It is a pity that she has made such a mistake.
3.Whether he’ll come here isn’t clear.
It isn’t clear whether/if he’ll come here.
注意： 1.主语从句位于句首时,不能用if 引导。 2. 主语从句后置时, 可以用if引导。
English fluently now.
summary
主语从句
陈述句做主语从句 一般疑问句做主语从句 特殊疑问句做主语从句
形式主语
你作为G10的优秀学生代表，在上周参加了学校的校 庆活动。请你用英文写一篇演讲稿，谈一谈你的学习感 受以及对未来高中学习生活的展望。字数在80词左右。 （请运用至少两个本课所复习的主语从句）
That he will pass the exam is certain. It is certain that he will pass the exam. Whether he will pass the exam is uncertain. It is uncertain whether he will pass the exam.
主语从句课件-2023届高三英语一轮复习14张PPT
4. What he said just now is true.
5. Whoever comes late will be punished by the teacher.
Doing exercise:
1. What Yuan Longping really cared about was not money.
It is necessary that we ( should ) learn English well.
It is highly important that we ( should ) fasten the belt while driving the car.
It is ( was ) + 被强调部分 + who ( that ) +其他 He met Li Ping yesterday. It was yesterday that he met Li Ping. I met Li Ming at the railway station yesterday. It was I who met Li Ming at the railway station yesterday.
以what / whatever 引导的 主语从句不可以改为it形
式主语的结构。
It is +形容词 / 名词 / 名词短语等 + that 引导主语从句
important、necessary、a necessity that 从句中的谓语动词一般要采用“ should + do” 的虚拟
语气形式，should经常省略
几乎所有的主 It remains to be语se从en句w都he可the以r ( if ) it will do good to us.
【课件】2025届高三英语一轮复习主语从句课件
4. (2015·北京·高考真题)_H_o_w__we understand things has a lot to do with what we feel.
5. (2014·广西·高考真题)Exactly_w__h_e_n____ the potato was introduced into Europe is uncertain, but it was probably around 1565.
Grammar and Usage Subject Clauses
Teaching objectives
By the end of today’s class, we will be able to • Identify the subject clauses and the conjunctions; • Recognize and summarize the functions and rules
2. (2022天津二模)_T_h_a_t__ he will come to our school tomorrow surprises us all.
3. (2021黑龙江双鸭山一中月考)__W__h_o____is responsible for the car accident is still under investigation.
Fill in the blanks
You try to break me but you see What doesn't kill you makes you stronger Stand a little taller Doesn't mean I'm lonely when I'm alone What doesn't kill you makes a fighter Footsteps even lighter Doesn't mean I'm over cause you're gone What doesn't kill you makes you stronger, stronger Just me, myself and I What doesn't kill you makes you stronger Stand a little taller Doesn't mean I'm lonely when I'm alone Thanks to you I got a new thing started Thanks to you I’m not broken hearted
5. (2014·广西·高考真题)Exactly_w__h_e_n____ the potato was introduced into Europe is uncertain, but it was probably around 1565.
Grammar and Usage Subject Clauses
Teaching objectives
By the end of today’s class, we will be able to • Identify the subject clauses and the conjunctions; • Recognize and summarize the functions and rules
2. (2022天津二模)_T_h_a_t__ he will come to our school tomorrow surprises us all.
3. (2021黑龙江双鸭山一中月考)__W__h_o____is responsible for the car accident is still under investigation.
Fill in the blanks
You try to break me but you see What doesn't kill you makes you stronger Stand a little taller Doesn't mean I'm lonely when I'm alone What doesn't kill you makes a fighter Footsteps even lighter Doesn't mean I'm over cause you're gone What doesn't kill you makes you stronger, stronger Just me, myself and I What doesn't kill you makes you stronger Stand a little taller Doesn't mean I'm lonely when I'm alone Thanks to you I got a new thing started Thanks to you I’m not broken hearted
2025届高三英语一轮复习主语从句课件
__W_h_o____the letter was from is still unknown.
Every year, __w__h_o_ev_e_r____ makes the most beautiful kite will win a prize in the Kite Festival.
it 形 式 主 语
it 形 式 主 语
It is possible that she will come back tomorrow .
it is + 过去分词. + that ...
it is + 名 + that ...
03
02
形式主语
01
it is + 形 + that ...
04
it 不及物动词+ that ...
it be + 形 + that ...
necessary; certain; right; clear; possible; (un)likely stange; obvious; important; .......
it be + 名 + that ...
a pity; a shame; a wonder; an honor; a fact; no wonder; no surprise .....
• It doesn’t matter/makes no difference (没有影响/毫无区别)+引导词
It doesn't matter whether you turn right or left at the crossing---both roads lead to the park.
2024届高考英语一轮复习：主语从句讲解课件
木已成舟
All of life is an act of letting go, but what hurts the most is not taking a moment（瞬间） to say goodbye.
人生就是不断的放下,但最遗憾的是,我们来不及好好告别! 《Pie少年派》
What I did not see was where the whole thing came to an end, the end of the world.
3 ._W__h_a_t___ struck（打动） me most in the movie
was the father's deep love for his son.
课后作业
1.完成讲义后主语从句习题，用 四种连词分别造句。 2.搜集主语从句相关美文，下节 课分享。
That beauty comes from within is truly believed by people.❤
These are their problems.
When/where/how he can eat food is Piggy's problem.
That the master was caught by the monsters is Sha Monk’s problem.
These are their problems. What/Who/Which is the monster is the Monkey King’s problem. Whether he should believe WuKong is Tang Monk’s problem. When/where/how he can eat food is Piggy’s problem. The master was caught by the monsters is Sha Monk’s problem.
All of life is an act of letting go, but what hurts the most is not taking a moment（瞬间） to say goodbye.
人生就是不断的放下,但最遗憾的是,我们来不及好好告别! 《Pie少年派》
What I did not see was where the whole thing came to an end, the end of the world.
3 ._W__h_a_t___ struck（打动） me most in the movie
was the father's deep love for his son.
课后作业
1.完成讲义后主语从句习题，用 四种连词分别造句。 2.搜集主语从句相关美文，下节 课分享。
That beauty comes from within is truly believed by people.❤
These are their problems.
When/where/how he can eat food is Piggy's problem.
That the master was caught by the monsters is Sha Monk’s problem.
These are their problems. What/Who/Which is the monster is the Monkey King’s problem. Whether he should believe WuKong is Tang Monk’s problem. When/where/how he can eat food is Piggy’s problem. The master was caught by the monsters is Sha Monk’s problem.
主语从句讲解+课件-2025届高三英语上学期一轮复习专项
Thanks
随堂练习：用适当的连接词填空 6._W___h_a_t____ worries us most is that the number of the kids dominated by
computers is growing fast.
7._W___h_e_t_h_e__r_one can turn his dream into a reality depends on his talent and the
有时为了避免头重脚轻，常用it作形式主语，真正的主语放后面。
①It + be + 形容词（clear /unfair等）+ that ...
It's strange that he didn't come yesterday. ②It + be + 名词词组（a fact /a pity /a shame等）+ that ... It is a question that who will hold the meeting. ③It + be + 过去分词（announced /believed /expected等）+ that ... It is said that there was a terrible plane crash this morning. ④It + seems /appears /happens等+ that ... It seems that he is a good guy.
主语从句
Who will win the match is still unknown.
谁会赢得这场比赛，目前还不清楚。
在复合句中，作主语的句子称为主语 从句，通常位于谓语动词之前
高考英语一轮复习主语从句课件
连接代词 whoever，whomever等，在从句中作主语、宾语、表语、定
语
连接副词
when，where，how，why等，在从句中作状语
从属连词 that，whether，if，as if/though等，在从句中不作成分
特点：名词性从句要用陈述语序，即：连接词＋主语＋谓语 At present I know how I can apply theory to practice. What I should do now is grasp the precious chance.
主语从句
Activity 1 阅读下列句子，认真感悟加颜色部分，并完成方框下的小题 ura says she always feels hungry when she smells it， so I taught her how to cook it，too. 2.The first time that she had to write an essay，her tutor explained that she must acknowledge what other people had said if she cited their ideas，but that he mainly wanted to know what she thought! 3.Xie Lei was confused because she thought she knew less
小结：that引导主语从句不可省略；whether可以引导主语从句， 而if不可以。
2.以连接代词和连接副词引导的主语从句常保留各自的疑问词义 Why the fire broke out is still unknown. ＝It is still unknown why the fire broke out. 人们仍然不知道这场大火为何会发生。 How he can learn to appreciate Chinese culture remains an important goal for him. 如何学会欣赏中国文化对他来说仍然是一个重要目标。 During this period，whatever people experience is fresh and exciting. 在这期间，人们所经历的任何东西都是新的、令人兴奋的。
高三英语一轮复习主语从句课件
live longer than 3 years.
A. What
B. That
2. that和what的选用：
两者都可引导主语从句。但是，_w__h_a_t除了起连
接作用外，还在名词性从句中充当成分，可作 从句的_主__语_、_宾__语_和_表__语_，表示“什么，…..的 东西/事情/话”。而__t_h_a_t在主语从句中不充当
注任意何成：分th，at没引有导词的义主，语只从起句连接置作于用句。首时, 不
能省略连接词that。
3.为了使句子结构平衡, 避免 “头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。 it作形式主语的句型： It+be+名词/形容词/过去分词+that从句
It is a pity/possible/said/reported that… It+不及物动词+that从句
Task 3 The application of subjective clause
Writing task: 受电影《哪吒》的鼓舞，假设你是班里学习委员， 第一阶段考试后部分同学备受打击，你决定用英 文写一篇演讲稿，给班里同学加油打气。尽量使 用主语从句。
尽量使用主语从句。
G1：让很多同学担心的是此次阶段考试的 成绩不理想。
G2: 你们取得这样的成绩是因为你们最近 没有努力学习。
G3：如何调整好心态正是我们现在要做的。 G4：电影中哪吒敢于向命运说不让我很受 鼓舞，这正是我们应该学习的。
also helped to save his life. ⑸_W__h_o was responsible for Nezha is obvious.
_B___ Nezha couldn’t live longer than 3 years
高中英语语法-主语从句(共22张PPT)
Whom she borrowed money from still puzzled him. Which side will win is not clear. What she said today was quite right.
7
When he will be back depends on the weather. Where the test will be given is not yet decided. Where and when he was born is a secret. Why he came here is not known. How we can protect the endangered animals
turning white.
√ A. while B. that
C. if
D. for
5._______ he said at the meeting shocked
everybody present.
√A. What B. That C. The fact D. The matter
6._________ we can't get seems better than
9
四、it 可作形式主语
为了使句子保持平衡，避免头重脚轻,经常用 it 作形式 主语,主语从句放在后面作真正的主语. 其结构为：
It + 谓语动词/系动词 + 宾语/表语 + 主语从句. 例如:
That we shall be late is certain. = It is certain that we shall be late. 1. That the earth is round is known to all. = It is known to all that the earth is round. 2. whether they would support us was a problem . = It was a problem whether they would support10us.
7
When he will be back depends on the weather. Where the test will be given is not yet decided. Where and when he was born is a secret. Why he came here is not known. How we can protect the endangered animals
turning white.
√ A. while B. that
C. if
D. for
5._______ he said at the meeting shocked
everybody present.
√A. What B. That C. The fact D. The matter
6._________ we can't get seems better than
9
四、it 可作形式主语
为了使句子保持平衡，避免头重脚轻,经常用 it 作形式 主语,主语从句放在后面作真正的主语. 其结构为：
It + 谓语动词/系动词 + 宾语/表语 + 主语从句. 例如:
That we shall be late is certain. = It is certain that we shall be late. 1. That the earth is round is known to all. = It is known to all that the earth is round. 2. whether they would support us was a problem . = It was a problem whether they would support10us.