题目内容：

1.I am sorry,_______ I had to help my mom because she was ill.
A.but B.or C.and D.then
2.--_______ do the games begin?
--At a quarter to eight.
A.What B.What time
C.How long D.What is time
3.Welcome back _________.
A.for home B.home C.to home D.in home
4.Summer is a good season ________ holidays.
A.to B.of C.for D.about
5.Many families ________ their lunch to a park or somewhere far _______ the city.
A.from B.away C.to D.off
6.Many families travel by ________ or by train to see interesting places.
A.car B.a car C.their car D.cars
7.Many big cities have many famous buildings,theatres,shops and other places ________ travellers.
A.for B.in C.on D.at
用所给单词的适当形式填空
8.It is too noisy.You'd better try to keep ________(quiet).
补全对话
9.--Hi,Lin!Long time to see.
--I ______ ________ my vacation.

优质解答

1 A,此题考查转折连词的用法,首先弄清每个选项的意思,A为但是,B为或者,C为并且,还,D为然后,根据句意：对不起,但是我不得不照顾母亲,因为她病了.
2 B,问时间用短语What time.A What问的是东西,事物.C How long问多长时间,回答用for＋时间段,与此题不符,D没有What is time?这种问法,只有What time is it?用于问时间.
3 C,back to somewhere表示返回某地；
4 C,for+名词表示目的；这里表示为了度假；
5 A,far from表示距离...远.
6 A,by+交通工具,表示通过某种方式,后面没有单复数的限制；
7 A,for+名词,表目的,为了...
8 quiet,keep是连系动词,连系动词+形容词.
9 am on,be on vacation表示在度假,又因为此句为一般现在时,故填am on.