急急急，请教几道英语题

1
situation用介词in
2
不要用中文的思维理解what这里既做宾语用作主语why不行
3
B:Jane and Betty are going to spend their holidays separately some days later.
4、用适当的介词或副词填空
*.Smiling, stands for happiness or optimism.
*.If a dolphin comes to you,don't reach nearby and try to touch it.
5.改错
with-in
6
因为前面有Hearing此句缺少主语 谁听见？是“我们听见”所以应该用we 跟第二题一样 注意别被中文的思维束缚
7
被看见正在做

1、It is important for us to use a word or phrase according to the ______ in language studies.
A.situation B.expression C.condition D.translation
答案为：A 为什么不选B?
situation这里是语境的意思 expression表达,表情 要是放在这里的话意思不通
2、I think my father would like to know______I've been up to so far,so I decide to send him a quick note.
A.which B.why C.what D.how
答案为：C 为什么不选B?
why引导的宾语从句在从句中做状语,这里从句_____I've been up to so far缺少主语.所以得选what表示所...的,在从句总做主语
3、句型转换
A：Jane and Betty are going on vacation separately a few days later.
B:Jane and Betty are going _for their_____ _separate ___holidays___ ___in___ ___a____ ___few___ ___days.
4、用适当的介词或副词填空
*.Smiling, __stands -for happiness or optimism.
*.If a dolphin comes _at__ you,don't reach _out___ and try to touch it.
5.改错
*.He watched the experiment with an interesting look.
nteresting---interested
6、Whiledancing happily at home,_____.
A.the door bell rang B.the door bell rings
C.we heard the door bell rings D.we heard the door bell ring
答案为D。为什么？
分词在句中做状语时,必须保证它的逻辑主语和句子的主语一致.dancing的主语得是人啊.所以排掉A B 而C.中rings 使用错误 d 中使用的hear sb/sth do 结构,听见...做....所以答案就是d.
7、The boy was seen ______ in the examination and was scolded by the teacher.
A.having cheated B.cheated C.cheating D.cheat
答案为C. 为什么？
see sb/sth +doing 看见某人在做... 用与被动句子中,则sb/sth be seen doing
see sb/sth do 看见某人做了。.被动是sb/sth be seen to do 所以d不对
see sb/sth done看见..被做 .这里男孩发出欺骗动作.所以不选
这个句意:有人看见男孩在作弊