◆并列句的核心考点
1．并列句的基本概念
并列句是由两个或两个以上并列而又独立的简单句构成的。在并列句中，这些简单句常由并列连词连在一起。并列连词所连接的简单句被称为分句。
2．常见的并列连词
(1)表示递进或顺承关系：常用的并列连词有and，not only...but (also)．..等。
He had plenty of money and he spent it freely.
Not only did he speak more correctly，but also he spoke more easily.
(2)表示选择关系：常用的并列连词有or，either...or...等。
Either you are right，or I am.
(3)表示转折关系：常用的并列连词有but，yet，whereas等。
Jane said she was ill，yet I saw her in the street just now.
Some of the studies show positive results，whereas others do not.
(4)表示因果关系：常用的并列连词有so，for等。
It must have rained last night，for it is wet all over.
The shops were closed，so I didn’t get any milk.
(5)when还可用作并列连词，意为“那时，这时”，相当于and at this/that time。常用于下列句式：sb.was doing sth.when...；sb.was about to do/going to do/on the point of doing sth.when...；③sb.had just done sth.when...。
We were having a meeting when someone broke in.
We were about to set off when it suddenly began to rain.
(6)while作为并列连词，意为“而，却”，表示对比。
He likes pop music，while I am fond of folk music.
◆时间状语从句的核心考点
1．before引导的从句中不用否定式谓语。常用如下句型：
It will be long before...(得过好久才……)
It will not be long before...(过不了多久就……)
It was long before...(过了好久才……)
It was not long before...(过了不久就……)
2．since后面所用动词不同，该动词所表示动作持续时间的计算方法也不同。
It is two years since he joined the army.他参军两年了。
It is two years since he smoked.他戒烟两年了。
3．as，when，while用法一览表。
类别 作用 例句
as as表示“当……的时候”，往往和when/while通用，但它着重强调主句与从句的动作或事情同时或几乎同时发生。 She came up as I was cooking.(同时)
The runners started as the gun went off.(几乎同时)
when (at or during the time that )既可以表示在某一点的时候，又可表示在某一段时间内，主句与从句的动作或事情可以同时发生也可以先后发生。 It was raining when we arrived.(指时间点)
When we were at school，we went to the library every day.(在一段时间内)
while while意思是“当……的时候”或“在某一段时间里”。主句中的动作或事情在从句中的动作或事情的进展过程中发生，从句中的动词一般要用延续性动词。在when表示a period of time时，两者可以互换。 Please don’t talk so loud while others are working.
He fell asleep while/when reading.
Strike while the iron is hot.(用as或when不可，这里的while意思是“趁……”)
4.引导时间状语从句的连接词除上述外还有：
(1)till，not...until...，until
Don’t get off the bus until it has stopped.
He waited for his father until/till it was twelve o’clock.
(2)hardly/scarcely...when，no sooner...than表示“刚……就”
We had hardly got/Hardly had we got into the country when it began to rain.
No sooner had he arrived/He had no sooner arrived than she started complaining.
(3)directly，immediately，the moment，the minute，the instant，as soon as，意为“一……就”
He made for the door directly he heard the knock.
The moment he saw his mother，he burst into tears.
(4)each time，every time
Each time he came to my city，he would call on me.
◆让步状语从句的核心考点
1．although与though可以引导让步状语从句，不能与but连用，但可以与yet连用。
Although/Though they are poor，(yet)they are warmhearted.
2．even if或even though引导让步状语从句，表示“即使”、“纵然”，用来使人注意下文所强调内容的性质。
I’ll get there even if/though I have to sell my house to get enough money to go by air.
3．no matter后接who，what，where，how等疑问词引导让步状语从句，也可以在这类疑问词后面加上ever构成whoever，whatever，wherever，however等。但在引导名词性从句时只能用“疑问词＋ever”类词。
Don’t trust him，no matter what/whatever he says.
I will eat whatever you give me.
No matter how hard the work is，you’d better try to do it well.
4．as也可以引导让步状语从句，需将从句中的表语、状语以及谓语中的实义动词提前至从句句首，引起倒装；作表语的单数可数名词前如有冠词，冠词需省去。though引导的从句也可以倒装，但although引导的不可以。
Child as(though) he is，he knows a lot.
Much as I like it，I won’t buy.
Try as he would，he couldn’t lift the heavy box.
5．while也可以引导让步状语从句，表示“尽管”，比though/although语气弱。while引导的让步状语从句一般要位于句首。
◆原因状语从句：because，as，since，now that
1．表示不知道的原因时用because，即说话人认为听话人不知道，因此because从句是全句最重要的部分，通常它被置于主句之后。
You want to know why I’m leaving？I’m leaving because I’m fed up with the boss.
2．表示已经知道的原因时用as或since，即某种原因在说话人看来已经很明显，或已为听话人所熟悉，因此它是句中不很重要的部分。since要比as正式一些，它们通常被置于主句之前，但有时却相反。
Seeing all of the children already seated，he said，“Since everyone is here，let’s start.”
3．下列情况下只能使用because：
(1)在回答why的问句时；
(2)在用于强调句型时；
(3)被not所否定时。
◆地点状语从句：where，wherever等
Make a mark wherever you have any questions.
We will go where the Party directs us.
◆目的状语从句：that，so that，in order that
注意：目的状语从句中的谓语动词常与情态动词连用，否则可能是结果状语从句，不可置于句首。
He got up early so that he could catch the early train.
◆结果状语从句：that，so that，so...that...，such...that...
注意：so＋形容词/副词＋that从句；such＋名词＋that从句。
She is so good that we all like her.
He is such a good teacher that we all respect him.
◆方式状语从句：as，as if/though
I’ll do as I am told to.
It looks as if it is going to rain.
◆条件状语从句：if，unless，so/as long as，in case，once，on condition that等
You can use my bike as long as you return it on time.
◆注意状语从句中从句的省略现象
1．连词＋非谓语动词
Don’t speak until (you are) spoken to.
Unless (it is) repaired，the washing machine is no use.
Look out while (you are) crossing the street.
He opened his lips as if (he is going )to speak.
2．连词＋形容词
常见的有if necessary，if possible，when necessary，if any等。
If (it is) necessary，I will go there.
Make a careful plan if (it is) possible.
3．连词＋介词短语
He looked around as if in search of something.
◆连词与语法填空
并列句和状语从句中的连词是语法填空题中常考点之一。连词分为并列连词和从属连词，常考的并列连词有and，but，or，so，while，when等；常考的从属连词有if，although/though，once，unless，when，where，since，before，after，because，as等。
典题试做1
在空白处填入适当的连词
1．One day，the cow was eating grass
it began to rain heavily.(2015·广东)
答案 when
解析 be doing sth.when...正在做某事这时……。when是并列连词，意思是“正在这时”。
2．But the river wasn’t changed in a few days
even a few months.(2017·新课标全国Ⅰ)
答案 or
解析 a few days和a few months为选择关系，因此要用or连接。
3．There were many people waiting at the bus stop，
some of them looked very anxious and disappointed.(2017·新课标全国Ⅱ)
答案 and
解析 结合前后句可知，此处是并列关系，故填并列连词and。
4．Peter：Unbelievable! Oh...，
you don’t mind，I’ll stop and take a deep breath.(2017·辽宁)
答案 if
解析 句意为：……如果你不介意，我要停下来深呼吸。根据句意可知应填if引导条件状语从句。故填if。
5．I made some sandwiches earlier and left them on the table
I went to answer the phone.But someone must have taken them because they’re gone.(2017·新课标全国样卷)
答案 when
解析 前一个分句I made some sandwiches earlier and left them on the table与后一个分句I went to answer the phone之间缺少连词；根据句意，第二个分句是第一个分句的时间状语从句，故填when。
6．We were told that our rooms hadn’t been reserved for that week，
for the week after.(2017·广东)
答案 but
解析 考查并列连词。not...but...为固定结构，表示“不是……而是……”。
7．So Nick called to his son，“Go to the village and buy some salt，but pay a fair price for it：neither too much
too little.”(2017·广东)
答案 nor
解析 neither...nor既不……也不……，为固定搭配，“(价格)既不要太高也不要太低”。
8．Some even write postcards while they are on vacation
send them to friends.(2017·广东)
答案 and
解析 由write和send前后两个并列动作可知，此处应用and连接。
应对策略1
若设空处在两个或两个以上单词或短语之间或两句(一个主谓关系算一个句子)之间，并且中间没有连词、分号或句号，则一定是填并列连词或从属连词。
◆连词与短文改错
短文改错中对于连词的考查主要涉及连词使用不当，缺少连词以及多余连词(although不能与but连用，because不能与so连用)等情况。
典题试做2
单句改错(每小题1处错误)
1．There the air is clean or the mountains are green.(2015·全国Ⅰ)
答案 or→and
解析 两个简单句之间为并列关系而非选择关系，所以将or改为and。
2．My only mistake was that I dropped some on the floor after I was packing them up.(2015·陕西)
答案 after→when/while
解析 句意为：我所犯的唯一的错误就是当我包装饼干的时候，掉在了地上一些。when/while当……的时候，after在……之后。
3．In fact，I don’t like to go anymore，so I’m afraid I’ll lose their friendship.(2015·四川)
答案 so→but
解析 考查连词。句意为：事实上，我不想再去那里了，但我怕失去他们的友谊。两个分句之间有转折关系，故把so改成but。
4．If I was only a child when I studied in that classroom，I will never forget it.(2015·浙江)
答案 If→Although/Though
解析 考查状语从句的引导词。句意为：尽管在那座教室学习时我仅仅是一个孩子，但我永远忘不了它。根据句意，应将if改为although或though。
5．Although we allow tomato plants to grow in the same place year after year，but we have never had any disease or insect attack problems.(2017·新课标全国Ⅰ)
答案 去掉but或but→yet
解析 在让步状语从句中，although不可以与but连用，但可以与yet连用。
6．And it is wise to have as many good friends that we can.(2017·大纲全国)
答案 that→as
解析 as many...as we can为固定句式。
7．A passenger realized he couldn’t find his ticket but became quite upset.(2017·浙江)
答案 but→and
解析 couldn’t find his ticket与became quite upset为并列平行关系，故应用and连接。
8．Before waiting for about half an hour，I was beginning to get impatient.(2017·陕西)
答案 Before→After
解析 句意为：等候了大约半个小时后，我开始不耐烦。故应把Before改为After。
9．He had a deep voice，which set him apart from others in our small town，he was strong and powerful.(2017·新课标全国Ⅰ)
答案 he前加and
解析 句中which引导的是定语从句，修饰主句He had a deep voice，而主句与从句后的分句he was strong and powerful之间缺少连词，根据他们的并列关系，确定he前加and。
10．In fact，he even scared my classmates away during they came over to play or do homework with me.(2017·新课标全国Ⅰ)
答案 during→when
解析 句中during为介词，不可以连接两个独立谓语的句子，根据逻辑关系，后一个分句应为when引导的时间状语从句。故during应改为when。
应对策略2
对于连词的考查，注意首先判断两个或两个以上的单词、短语或单句之间是否有连词，再根据不同的句式结构，判断连词是否运用正确。解题时，可以注意以下几个方面：
(1)把握前后两句话之间的衔接关系，判定是并列句、主语从句、定语从句还是状语从句，根据连词在句中作何成分，判断正误；
(2)注意but转折、and并列、or或者(选择)、so因此(结果)等逻辑关系词之间的混用；
(3)注意although/though/while不与but连用；since/as/because不与so连用；
(4)注意but与and，and与or，or与so，after与before等连词的用法区别。
◆书面表达中并列句与状语从句易错点聚焦
(一)在书面表达中往往缺乏并列句意识，主要存在以下两个方面的倾向：
1．机械排列简单句
I believe I am fit for it.I’m writing to apply for the position.
如果我们把意义相关的这两个句子用适当的连词连接起来，可得到下面的句子：
I believe I am fit for it，so I’m writing to apply for the position.
比较一下，同学们是不是感觉后者要优于前者呢？并列连词的应用可增强句子之间的逻辑性和美感，使句子之间显得更加紧凑。
2．逗号连接两个简单句
I’m enthusiastic and easygoing，I’m easy to get along with and can cooperate well with others.
在该句中含有两个简单句，中间用逗号起了连接作用，显然这是不符合英语语法规则的。我们不妨做如下改动：
I’m enthusiastic and easygoing，so I’m easy to get along with and can cooperate well with others.
(二)对于状语从句，在实际运用中主要存在以下问题：
1．从句意识缺乏
The Expo is very attractive.We are all eager to pay a visit to it.
The Expo is so attractive that we are all eager to pay a visit to it.
通过比较不难发现，后句比前句更加紧凑且逻辑性强，增强了交际效果。
2．状语从句成分残缺
(误)Please close the doors and windows before leave the classroom.
(正)Please close the doors and windows before you leave the classroom.
由于受汉语的干扰，第一句中状语从句中漏掉了主语。
3．连接词误用
(误)Teachers and parents should respect us no matter we are in or outside school.
(正)Teachers and parents should respect us whether we are in or outside school.
两句尽管从汉语角度来看意思相同，但是从语法角度no matter一般后跟特殊疑问词，而whether可直接引导状语从句。
(误)Though he is considered a great writer，but his works are not widely read.
(正)Though he is considered a great writer，his works are not widely read.
在让步状语从句中，though和although不能与but连用。
Ⅰ.单句语法填空
1．You have to move out of the way
the truck cannot get past you.
答案 or/otherwise
解析 or/otherwise否则，要不然。
2．Mike was usually so careful，
this time he made a small mistake.
答案 yet/but
解析 因为句子之间为转折关系，所以用表转折关系的连词yet或but。
3．Find ways to praise your children often，
you’ll find they will open their hearts to you.
答案 and
解析 此处为顺承关系，故用and连接。
4．At school，some students are active
some are shy，yet they can be good friends with one another.
答案 while
解析 由句中active与shy存在对比关系，故用while表示两者的对比。
5．Everything was placed exactly
he wanted it for the graduation ceremony.
答案 where
解析 根据was placed(被放置于)可知其后为地点状语，所以用where。
6．Hot
the night air was，we slept deeply because we were so tired after the long journey.
答案 as/though
解析 由as/though引导让步状语从句时需将从句中的表语、状语以及谓语中的实义动词提前至句首可知，从句表语hot提前，故用as/though。
7．It is hard for the Greek government to get over the present difficulties
it gets more financial support from the European Union.
答案 unless
解析 unless＝if...not如果不，除非。
8．
hard you try，it is difficult to lose weight without cutting down the amount you eat.
答案 However
解析 根据设空后的副词hard可知答案为however，however hard相当于no matter how hard。
9．Do you know about firefighters？One of the greatest heartbreaks for firefighters occurs when they fail to rescue a child from a burning building
the child，frightened by smoke and noise，hides in a closet and is later found dead.
答案 because
解析 设空后面解释了消防队员未能成功营救这个孩子的原因，故此处用引导原因状语从句的连词because。
10．There once was a very rich man.He was so generous to everybody around him
many people in his neighborhood knew him.
答案 that
解析 此题考查的是so...that...结构。句意为：从前有一个非常富有的人。他对他周围的每个人都很慷慨，所以很多人都认识他。
Ⅱ.单句改错(每小题1处错误)
1．His new job meant I had to say goodbye to my classmates，my school or just everything else I love in the world.
答案 or→and
2．My father is hardworking but goes to work in the field every day.
答案 but→and
3．I have been missing you very much after I went to college a year ago.
答案 after→since
4．In the end，we drove to a service station and waited there unless the road was clear.
答案 unless→until/till
5．Mom，though I may not often say it，I do love you.Nobody can take your part in my heart.Whenever I am，I will always love you.
答案 Whenever→Wherever
6．It is in the downtown area，but it is easy to go anywhere from the hotel by public transport.
答案 but→and/so
7．I called my parents，so I did not tell them what had happened.
答案 so→but
8．To deal with the problem，I think，they should first go all out to plant trees though trees will help save water.
答案 though→because/since/as
9．Her hair was black and purple，and she wore black sports shoes and a black sweater，although in the summer.
答案 although→even
10．Some friends of his go to see him every day，they take him lots of good books and fresh fruit.
答案 they前加and
Ⅲ.语法填空
A(连词专练)
My mother was cooking in the kitchen 1.while I was doing my school assignments.No sooner had I finished my homework 2.than the door bell rang.However，my sister unlocked the door 3.before I could open it.We were surprised the moment we saw her 4.because her clothes and face were terribly dirty.She looked much poorer 5.than we expected.6.Since we didn’t know what had happened to her，we stood there and waited for my sister’s story.We wouldn’t leave 7.unless my sister told us all about it.8.After my sister got changed，she told us that she fell into a ditch 9.when she walked on a path on her way to my uncle’s home in the countryside.She couldn’t get out of the ditch.10.Although/Though she cried for help loudly，no one could hear her.She tried to climb out of it，but 11.however hard she tried，she failed to escape from it.12.As time went by，she got worried.
After several vain attempts she had to stand 13.where she was and waited 14.until a boy student passed by and gave her a hand.The boy reached her a long rope and told her to climb with the rope.She did 15.as the boy told，so that she came out.
B
According to Zheng Jun，Qinqiang opera is similar 16.to rock’n’roll in many ways，and the latter is therefore the modern day Qinqiang.Rock concerts,17.which star the common people，take place by the city wall on a daily basis.
Qinqiang opera 18.is called(call) the “living fossil” of Chinese opera，the forefather of several operas in China.19.Spreading(spread) to Henan，it developed into Yu opera.Judging even by today’s standards，Qinqiang opera counts as the 20.earliest(early) Chinese rock music.The spirit of modern rock’n’roll 21.seems(seem) to come from it.
The number of Qinqiang opera amateur 22.clubs (club) in Xi’an is uncertain.At places like the City Wall Park and the South Gate，you can spot groups of people enjoying the opera.Known or unknown to the group，any Qinqiang lover is welcome to sing a piece 23.or just sit down and listen.The singer presents excellent voice and emotions while the audiences get 24.excited(excite) by the tunes.Standing among 25.them(they)，you could feel the cultural pulse of this city.