英语选修7北师大版同步作业及答案：Unit 19（3）语言点
Ⅰ.完成句子
1．To make sure that he was at home, I called him up in_advance (事先)．
2．She may come with us provided_that (假如) she arrives in time.
3．In_addition (除了) to these arrangements, extra ambulances will be on duty until midnight.
4．The discussion focused_on (集中于……) three main problems which drew attention of most people.
5．Come and sign_up (报名), and you will get a great chance.
Ⅱ.单项填空
1．All their attention was ________ on how to solve the problems ________ polluted rivers and poisonous gas.
A．absorbed; and so on B．focused; such as
C．paid; as D．lost; for example
解析：选B。考查词组辨析。句意：他们所有的精力都用在怎么解决例如河流污染和有害气体的问题上了。由attention和on得知第一个空用focus；第二个空表示举例说明，如用for example，后要有逗号隔开。
2．I'll go to America to improve my English ________ it isn't too expensive.
A．except B．provided
C．assumed D．unless
解析：选B。句意：如果不是太昂贵的话，我要去美国提高一下我的英语水平。provided充当连词，表示“假设，如果”。
*********************************************************结束
翻译句子
1．说实话，在这一点上我不同意你的意见。(to be honest)
To_be_honest,_I_don't_agree_with_you_on_this_point.
2．我不想出去，我宁愿待在家里看书。(would prefer to do)
I_don't_want_to_go_outside;_I_would_prefer_to_stay_at_home_and_read_a_book.
