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It， that， one用法相比较，有哪些异同？
答：1. it和that都可用来代替物质名词和抽象名词，而one则不能。这时it指同一事物，而that只能指同类事物。如：
①There is air all around us， though we can’t see it.
②His attitude to us is that of a comrade.
③Your question is one of great importance.
以上句①it替代同一air。句②that替代attitude.His attitude与the attitude of a comrade是同一类的。句③one替代可数名词question.
2. it， that， one都可用于代替可数名词。that和one只是代表上文提到的某一个名词，不一定代表同一事物。其中one表示泛指，代替a/an+名词（可数名词）；that表示特指，代替the+名词；it也表示特指，但它代表上文提到的名词时，是指同一个事物。
①—Do you need my pencil ？
—No， thanks. I have got one myself.
②—Where is my book？
—I have lost it.
句①中的one不是上句提到的“我的pencil”，而是另外一支，表示泛指；句②中的it就是指上句提到的“我的那本书”。
3. one前面可以有冠词、代词、形容词修饰，后面可以有介词短语、定语从句修饰，而it和that前面则不能。one的复数形式为ones.
I don’t want a new car. I want a second-hand one.
The book is one about English study.
Our era is one in which a great number of heroes emerge.
—Which book would you like—this one or that one？
—Either one is fine.
Here are two pens. Which one do you prefer ？
—This is very beautiful.
—Yes， at least it is no worse than the one I bought last week.
Modern farms are larger than old-time ones.
In Britain the villages are becoming small towns and the small towns large ones.
4. it和that可用来代替前面整个句子的意思，而one则不能。
I would like to give him a hand. It is my duty.
During the next ten years we both worked night and day. That is why you see this old woman before you now.
5. 在比较状语从句中，一般用that代替不可数名词。若是特指的单数可数名词，用that one；若是特指的复数名词，则用those代替。
The population of China is much larger than that of Japan.
No bread eaten by man is so sweet as that earned by his own labour.
We like this computer better than that one.
The people in this place are more hardworking than those in that place.
“be+to do”结构有哪些用法？
答：1. 表示按计划或安排将要做的事情。如：
The train for Wuhan is to start at 10：20. 去武汉的火车10点20分开。
We are to begin the work next month. 我们计划下个月开始这项工作
She is to be seen in the lab on Monday. 星期一你准会在实验室见到她。
这一结构也可用于表示过去曾经计划要做的事。如果这种事没有发生，可以用动词不定式的完成式。如：
She was to have summer holidays in Dalian last year. 去年她曾打算去大连度暑假。
I was to have started work last week， but I changed my mind. 我本该上星期开始工作，但我改变了主意。
2. 表示命令指示。如：
Mother says you are to wait here till she comes. 妈妈要你在这儿一直等到她来。
You are not to smoke. 不准吸烟。
The room is to be locked. 这房间要上锁。 You are to go to bed and keep quiet， kids. 孩子们，你们必须上床睡觉，不准吵闹。
3. 表示不可避免地将要发生的事。如：
The worst is still to come. 最坏的事不可避免地会发生。
I assure you that the matter will be attended to as quickly as possible. 我保证这件事会得到最快的处理。
4. 表示应该做的事情。如：
What are we to do next？ 我们下一步应该怎么办？
What is to be done when something gets into your eyes？ 如果你眼睛里进了东西，该怎么办？
5. 表示“目的”或“用途”。如：
The prize was to honour him for his great discoveries. 这项奖励是为了对他的重大发现而表示的敬意。
A pen is to write with. 钢笔是用来写字的。
6. 用于说明书、通知或表示注意事项时，不定式多用被动式。如：
The form is to be filled in and handed is after school. 请在放学后将表填好并上交。
These tablets are to be kept out of the reach of children. 勿让儿童接触这些药片。
7. 表示被动意义。如：
The house is to let. 此屋出租。
Who is to blame？ He is to blame. 该怪谁呢？该怪他。
8. 用于非真实条件句中。如：
If it were to rain tomorrow， our picnic would be put off. 如果明天下雨，我们的野餐就推迟。
If he were to come to Beijing， we wouldn’t have so much trouble. 如果他到北京来了，我们就不会有如此多的麻烦。
remain的考点有哪些？
答：高考对remain的考查主要集中于remain后加不定式时的语态的选择，remain作为联系动词时所加表语的形式选择及分词作定语这三点。
remain常与不定式连用，此时不定式多用被动语态，同学们容易依据翻译错选用主动语态。如：
What he said remains to be proved.
The last point remains to be cleared up.
remain作连系动词时，其后可加形容词、分词、介词短语、名词或代词。如：
He ate much but remained thin.
You remain unchanged after all.
The temperature remained above 39℃.
remain的分词形式作定语时只能用remaining，且只能作前置定语。如：
Now， there is the remaining three dollars.
用来表达“一……就……”的句型和结构有哪些？
答：1. directly/immediately
当directly/immediately用来表达“一……就……”的含义时，不应该再把它们看成副词，而应看成引导时间状语从句的连词。
I’ll come immediately/directly I have finished my work.
Immediately/Directly I saw those pictures， I couldn’t help laughing.
2. the moment/the instant
the moment/the instant在表达“一……就……”这一含义时在句中起着连词作用，引导的是时间状语从句。如：
The little girl stopped crying the moment/the instant she saw us.
The moment/The distant they arrived there， they began to work for the farmers there.
3. no sooner ... than ... /hardly或scarecely ... when ...
在运用no sooner ... than .../hardly或scarecely ...when ...时应注意的是：要保证此句型的前半部分用的是过去完成时，后半部分用的是过去时。尤其是，当我们将no sooner和hardly放置于句首时，句子应实行部分倒装。
No sooner had he got to the railway station than the crowded people pushed toward him.
Hardly had he finished his homework when he heard someone knoched the door. （或不倒装：He had hardly finished his homework when he heard someone knocked the door.）
4. on （doing） something/at the thought/sight of
当on （doing） something结构中的介词on换为upon时，其意不变。
On/Upon arrival， they joined us in the discussion.
On/Upon getting off the bus， she rushed toward the nearest telephone box.
At the sight of the footprints， he was frightened to death.
5. as soon as/once
连词as soon as只表达“一……就………”方面；而连词once除了表达“一……就……”的含义外，它还有众多的其他用法。
Once/As soon as he comes here， I’ll tell him everything I know.
I’ll go to school as soon as/once I finish my breakfast.
用“be +of +抽象名词”结构时要注意什么？
答：许多同学不习惯于be后再加上of介词短语的用法，也不知道如何翻译此类短语，有时又易与be of a size/an age等短语弄混淆。
英语里“be+of+抽象名词”往往相当于“be+adj.”，常用的此结构的短语有：（be） of great help/use/importance/effect/benefit等。如：
The meeting is of great importance. （=The meeting is very important.）
The dictionary is of great use. （=The dictionary is very useful.）
（1）在此结构中，除了用great修饰名词外，还可以用good/much/some/little/no/any等来修饰名词。
（2）名词size/age/color/type/height/width/depth等也可以与of连用，在这些名词前面有a/an/the/the same/different等词。“of the same+n.”作表语时，of常可省略。
答：1. it和that都可用来代替物质名词和抽象名词，而one则不能。这时it指同一事物，而that只能指同类事物。如：
①There is air all around us， though we can’t see it.
②His attitude to us is that of a comrade.
③Your question is one of great importance.
以上句①it替代同一air。句②that替代attitude.His attitude与the attitude of a comrade是同一类的。句③one替代可数名词question.
2. it， that， one都可用于代替可数名词。that和one只是代表上文提到的某一个名词，不一定代表同一事物。其中one表示泛指，代替a/an+名词（可数名词）；that表示特指，代替the+名词；it也表示特指，但它代表上文提到的名词时，是指同一个事物。
①—Do you need my pencil ？
—No， thanks. I have got one myself.
②—Where is my book？
—I have lost it.
句①中的one不是上句提到的“我的pencil”，而是另外一支，表示泛指；句②中的it就是指上句提到的“我的那本书”。
3. one前面可以有冠词、代词、形容词修饰，后面可以有介词短语、定语从句修饰，而it和that前面则不能。one的复数形式为ones.
I don’t want a new car. I want a second-hand one.
The book is one about English study.
Our era is one in which a great number of heroes emerge.
—Which book would you like—this one or that one？
—Either one is fine.
Here are two pens. Which one do you prefer ？
—This is very beautiful.
—Yes， at least it is no worse than the one I bought last week.
Modern farms are larger than old-time ones.
In Britain the villages are becoming small towns and the small towns large ones.
4. it和that可用来代替前面整个句子的意思，而one则不能。
I would like to give him a hand. It is my duty.
During the next ten years we both worked night and day. That is why you see this old woman before you now.
5. 在比较状语从句中，一般用that代替不可数名词。若是特指的单数可数名词，用that one；若是特指的复数名词，则用those代替。
The population of China is much larger than that of Japan.
No bread eaten by man is so sweet as that earned by his own labour.
We like this computer better than that one.
The people in this place are more hardworking than those in that place.
“be+to do”结构有哪些用法？
答：1. 表示按计划或安排将要做的事情。如：
The train for Wuhan is to start at 10：20. 去武汉的火车10点20分开。
We are to begin the work next month. 我们计划下个月开始这项工作
She is to be seen in the lab on Monday. 星期一你准会在实验室见到她。
这一结构也可用于表示过去曾经计划要做的事。如果这种事没有发生，可以用动词不定式的完成式。如：
She was to have summer holidays in Dalian last year. 去年她曾打算去大连度暑假。
I was to have started work last week， but I changed my mind. 我本该上星期开始工作，但我改变了主意。
2. 表示命令指示。如：
Mother says you are to wait here till she comes. 妈妈要你在这儿一直等到她来。
You are not to smoke. 不准吸烟。
The room is to be locked. 这房间要上锁。 You are to go to bed and keep quiet， kids. 孩子们，你们必须上床睡觉，不准吵闹。
3. 表示不可避免地将要发生的事。如：
The worst is still to come. 最坏的事不可避免地会发生。
I assure you that the matter will be attended to as quickly as possible. 我保证这件事会得到最快的处理。
4. 表示应该做的事情。如：
What are we to do next？ 我们下一步应该怎么办？
What is to be done when something gets into your eyes？ 如果你眼睛里进了东西，该怎么办？
5. 表示“目的”或“用途”。如：
The prize was to honour him for his great discoveries. 这项奖励是为了对他的重大发现而表示的敬意。
A pen is to write with. 钢笔是用来写字的。
6. 用于说明书、通知或表示注意事项时，不定式多用被动式。如：
The form is to be filled in and handed is after school. 请在放学后将表填好并上交。
These tablets are to be kept out of the reach of children. 勿让儿童接触这些药片。
7. 表示被动意义。如：
The house is to let. 此屋出租。
Who is to blame？ He is to blame. 该怪谁呢？该怪他。
8. 用于非真实条件句中。如：
If it were to rain tomorrow， our picnic would be put off. 如果明天下雨，我们的野餐就推迟。
If he were to come to Beijing， we wouldn’t have so much trouble. 如果他到北京来了，我们就不会有如此多的麻烦。
remain的考点有哪些？
答：高考对remain的考查主要集中于remain后加不定式时的语态的选择，remain作为联系动词时所加表语的形式选择及分词作定语这三点。
remain常与不定式连用，此时不定式多用被动语态，同学们容易依据翻译错选用主动语态。如：
What he said remains to be proved.
The last point remains to be cleared up.
remain作连系动词时，其后可加形容词、分词、介词短语、名词或代词。如：
He ate much but remained thin.
You remain unchanged after all.
The temperature remained above 39℃.
remain的分词形式作定语时只能用remaining，且只能作前置定语。如：
Now， there is the remaining three dollars.
用来表达“一……就……”的句型和结构有哪些？
答：1. directly/immediately
当directly/immediately用来表达“一……就……”的含义时，不应该再把它们看成副词，而应看成引导时间状语从句的连词。
I’ll come immediately/directly I have finished my work.
Immediately/Directly I saw those pictures， I couldn’t help laughing.
2. the moment/the instant
the moment/the instant在表达“一……就……”这一含义时在句中起着连词作用，引导的是时间状语从句。如：
The little girl stopped crying the moment/the instant she saw us.
The moment/The distant they arrived there， they began to work for the farmers there.
3. no sooner ... than ... /hardly或scarecely ... when ...
在运用no sooner ... than .../hardly或scarecely ...when ...时应注意的是：要保证此句型的前半部分用的是过去完成时，后半部分用的是过去时。尤其是，当我们将no sooner和hardly放置于句首时，句子应实行部分倒装。
No sooner had he got to the railway station than the crowded people pushed toward him.
Hardly had he finished his homework when he heard someone knoched the door. （或不倒装：He had hardly finished his homework when he heard someone knocked the door.）
4. on （doing） something/at the thought/sight of
当on （doing） something结构中的介词on换为upon时，其意不变。
On/Upon arrival， they joined us in the discussion.
On/Upon getting off the bus， she rushed toward the nearest telephone box.
At the sight of the footprints， he was frightened to death.
5. as soon as/once
连词as soon as只表达“一……就………”方面；而连词once除了表达“一……就……”的含义外，它还有众多的其他用法。
Once/As soon as he comes here， I’ll tell him everything I know.
I’ll go to school as soon as/once I finish my breakfast.
用“be +of +抽象名词”结构时要注意什么？
答：许多同学不习惯于be后再加上of介词短语的用法，也不知道如何翻译此类短语，有时又易与be of a size/an age等短语弄混淆。
英语里“be+of+抽象名词”往往相当于“be+adj.”，常用的此结构的短语有：（be） of great help/use/importance/effect/benefit等。如：
The meeting is of great importance. （=The meeting is very important.）
The dictionary is of great use. （=The dictionary is very useful.）
（1）在此结构中，除了用great修饰名词外，还可以用good/much/some/little/no/any等来修饰名词。
（2）名词size/age/color/type/height/width/depth等也可以与of连用，在这些名词前面有a/an/the/the same/different等词。“of the same+n.”作表语时，of常可省略。