书面表达常用词汇、短语和句型汇总
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as if/ though 好像，似乎，仿佛 as if =as though, as if 在口语中更常见。
1）as if/though 引导的从句中常用陈述语气，也可用 虚拟语气
It seems as if it’s going to rain. 似乎要下雨了。（陈述）
He looks as if he had seen a ghost. 他看起来好像撞见鬼了。（虚拟）
take back
退回（某物）；收回（所说的话）
take care
小心，谨慎
take care of 照料，照顾
take down 记下；取下
take in
接待；吸收
take off
（飞机）起飞；取消；脱下（衣帽）
take on take out take over take up take place
if only “要是……就好；只要；但愿” 表示对现在或 未来的希望、或与过去事实相反的愿望，谓语 动词用虚拟语气。 常不用主句而表意明确。
1）If only I had been more careful!
要是我能更仔细一些该多好啊！
2）If only I were rich. 但愿我很富有。
3）If only I could fly a plane.要是我会开飞机该多好。
〖书面表达〗
常用词汇， 短语和句型
1. welcome 用法
welcome 作形容词时，“受欢迎的”“令人愉快的”“好的”
1) There is a welcome change in my hometown. 我家乡发生了可喜的变化。
2)That’s a piece of welcome news. 这是一条好消息。
D. Only if; were
2.______ a teacher has given permission
is a student allowed to enter this room.
A. Only if
B. If only
C. If
D. Only
3. take 短语：
take away
拿去；使离开
【比较】if only 和only if
if only 表示“愿望”， only if 则表示真实条件。 意为“只有”“除非……决
不”， 置于句首时，其后主句要用倒装语序。
1) We shall do it better only if we are given another chance.
除非再给我们一次机会，否则我们就不能把此事 做得更好。
3) as if/though 可以表达感叹语气，用来表示不赞成、 惊讶、不满和厌恶等
As if anyone would believe that story!
好象有人竟会相信那样的事！
As if we were all stupid and he alone clever!
哼，就仿佛我们都是傻瓜，只有他一个人聪明似的！
2) as if/though 后还可接名词、动词不定式、形容词、 介词短语或分词（常称为从句的省略形式）。
He acts as if (he were ) a fool. 他做事像个傻子 The old manLeabharlann Baiduopened his lips as if to say something. 老人张开嘴，好象要说什么。 She looked around as if in search of something. 她四周看看，像是在寻找什么东西。
作表语时，常用be welcome to sth./to do sth. 表示“可以随意享用的”“被允许的”“不用
谢的”
1) You are welcome to any books you would like to borrow.
2) She is welcome to stay here whenever she likes.
2) Only if you study hard can you pass the exam.
只有努力学习，你才能通过考试。
1.
Mary still by my side to
see this with her own eyes!
A.If only; were
B. If only; is
C. Only if; was
呈现；雇用 取出；拿出 接管；接收 开始；从事；占去（时间等） 发生；举行
take…for… 把……误认为
4. as if/though
①.It was almost as if the creature was watching them. 好象它一直在盯着他们看。
②.It looked as if the creature had moved. 塑像好象动了动。
Your speech came across very well. 你的讲话很深入人心。
【注意】come across 是不及物动词短语，不可用被动态
5. come across （偶然）遇到；找到；想到；被人理解
I’ve just come across an old friend. 我刚碰到一位老朋友。
She came across some old photos in a drawer. 她在抽屉里偶然发现了一些旧照片。
He came suddenly across an idea. 他突然想到一个点子。
welcome 作名词用 常用句型: give sb. a warm welcome
热烈欢迎某人
2. If only they could find a way to get to the room, or whatever it was,behind the door. 要是他们能找到一条通道进入墙后的那个房间， 或无论什么地方，该有多好。
welcome作感叹词用，意为“欢迎”
× Welcome to our school!
『注意』 Welcome you to our school.
welcome作及物动词时，作“欢迎”“迎接”解释
They welcome him with flowers.
√ 【判断】We welcome the visitors to China.
1）as if/though 引导的从句中常用陈述语气，也可用 虚拟语气
It seems as if it’s going to rain. 似乎要下雨了。（陈述）
He looks as if he had seen a ghost. 他看起来好像撞见鬼了。（虚拟）
take back
退回（某物）；收回（所说的话）
take care
小心，谨慎
take care of 照料，照顾
take down 记下；取下
take in
接待；吸收
take off
（飞机）起飞；取消；脱下（衣帽）
take on take out take over take up take place
if only “要是……就好；只要；但愿” 表示对现在或 未来的希望、或与过去事实相反的愿望，谓语 动词用虚拟语气。 常不用主句而表意明确。
1）If only I had been more careful!
要是我能更仔细一些该多好啊！
2）If only I were rich. 但愿我很富有。
3）If only I could fly a plane.要是我会开飞机该多好。
〖书面表达〗
常用词汇， 短语和句型
1. welcome 用法
welcome 作形容词时，“受欢迎的”“令人愉快的”“好的”
1) There is a welcome change in my hometown. 我家乡发生了可喜的变化。
2)That’s a piece of welcome news. 这是一条好消息。
D. Only if; were
2.______ a teacher has given permission
is a student allowed to enter this room.
A. Only if
B. If only
C. If
D. Only
3. take 短语：
take away
拿去；使离开
【比较】if only 和only if
if only 表示“愿望”， only if 则表示真实条件。 意为“只有”“除非……决
不”， 置于句首时，其后主句要用倒装语序。
1) We shall do it better only if we are given another chance.
除非再给我们一次机会，否则我们就不能把此事 做得更好。
3) as if/though 可以表达感叹语气，用来表示不赞成、 惊讶、不满和厌恶等
As if anyone would believe that story!
好象有人竟会相信那样的事！
As if we were all stupid and he alone clever!
哼，就仿佛我们都是傻瓜，只有他一个人聪明似的！
2) as if/though 后还可接名词、动词不定式、形容词、 介词短语或分词（常称为从句的省略形式）。
He acts as if (he were ) a fool. 他做事像个傻子 The old manLeabharlann Baiduopened his lips as if to say something. 老人张开嘴，好象要说什么。 She looked around as if in search of something. 她四周看看，像是在寻找什么东西。
作表语时，常用be welcome to sth./to do sth. 表示“可以随意享用的”“被允许的”“不用
谢的”
1) You are welcome to any books you would like to borrow.
2) She is welcome to stay here whenever she likes.
2) Only if you study hard can you pass the exam.
只有努力学习，你才能通过考试。
1.
Mary still by my side to
see this with her own eyes!
A.If only; were
B. If only; is
C. Only if; was
呈现；雇用 取出；拿出 接管；接收 开始；从事；占去（时间等） 发生；举行
take…for… 把……误认为
4. as if/though
①.It was almost as if the creature was watching them. 好象它一直在盯着他们看。
②.It looked as if the creature had moved. 塑像好象动了动。
Your speech came across very well. 你的讲话很深入人心。
【注意】come across 是不及物动词短语，不可用被动态
5. come across （偶然）遇到；找到；想到；被人理解
I’ve just come across an old friend. 我刚碰到一位老朋友。
She came across some old photos in a drawer. 她在抽屉里偶然发现了一些旧照片。
He came suddenly across an idea. 他突然想到一个点子。
welcome 作名词用 常用句型: give sb. a warm welcome
热烈欢迎某人
2. If only they could find a way to get to the room, or whatever it was,behind the door. 要是他们能找到一条通道进入墙后的那个房间， 或无论什么地方，该有多好。
welcome作感叹词用，意为“欢迎”
× Welcome to our school!
『注意』 Welcome you to our school.
welcome作及物动词时，作“欢迎”“迎接”解释
They welcome him with flowers.
√ 【判断】We welcome the visitors to China.