几道高二英语选择题,求讲解

C1.Some holidays are so much fun that they ______outside of their culture.
A.catch at
B.catch up
C.catch on
D.go on
B2.It was April 29,2011___________Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
A.that
B.when
C.since
D.before
A3.They think the room is ________,but as a matter of fact it is already occupied.
A.vacant
B.bare
C.blank
D.hollow
A4.She has a gift for creating an atmosphere for her students ________allows them to communicate freely with each other.
A.which
B.where
C.what
D.who
A5.He came here without friends or ________and made his fortune.
A.possessions
B.possession
C.wealths
D.good
D6.The first satellite ___________telephone signals was called Early Bird.
A.was used to send
B.used to be sent
C.was used to sending
D.used to send

不知道答案是什么，我看了一下，第一题几个词组没见过，就不误导了。
第二题选A，构成“it is……that”强调句。
第三题选C，A意为真空；B强调秃的，什么都没有的；C表示空的；D意为中空的，空虚的。
第四题选A，宾语从句，宾语从句中不能用“what”，这里A代替“gift”，在从句中做主语。
第五题选B，possession意为财富，是不可数名词。
第六题选D，意为过去用来发射电话信号的首个卫星……

不知道对不对，个人拙见，如果有误，希望不要误导了你。

证明，twist 作为及物动词，后跟 one's ankle是很地道的英语，并不汉语思维即使这样，her ankle twisting, 作状语表示一个与主句动词同时或几乎同时发生

一题chtch on意为变得流行 二题that，是it is ……that ……强调句式；三题vacant，意为空的，空闲的 下文occupied是occupy的被动形式：被占据，被使用；四题which定语从句，从句缺主语而主句结构完整，应该用which或that；五题possessions，possession 意为财产，所有物，可数，故加s；六题句子主干为satellite was called EB.缺定语satellite 是人造卫星，显然send这个动作是主动的，D。

1.Some holidays are so much fun that they __________outside of their culture.
catch on 表示 “流行起来，受欢迎”之意。
意思：有些节假日很有意思，即使在该国家以外也流行起来。
2.It was April 29,2011___________Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
本句是对时间的强调句型，所以用 that. （即使被强调部分是时间和地点也用 that）
意思：正是2011年4月29日，威廉王子
和凯特 米德尔顿步入了婚礼的殿堂。

3.They think the room is ________,but as a matter of fact it is already occupied.
vacant 没有人入住的，空闲着的
意思：他们以为那个房间是空着的，但实际上已经有人订了。
4.She has a gift for creating an atmosphere for her students ________allows them to communicate freely with each other.
which ， 引导 gift 的定语从句，在从句中作主语。
意思：她有一种为学生创建气氛的能力，使得学生能够相互无拘无束地交流。
5.He came here without friends or ________and made his fortune.
possessions 表示个人财产，多用复数。
意思：他刚来的时候没有朋友和财产，后来发了家。
6.The first satellite ___________telephone signals was called Early Bird.
used to send 表示被动，后置定语，本句的谓语动词是 was called
意思：第一颗用来发送电话信号的卫星叫晨鸟。