1 . 通常情况下, 成功会带来幸福感。
Success, __________________ is often the case, leads to happiness

2 . 他的头很快就在第二层的某个窗户伸出来，在那里除了树他什么也看不见。(from where)
His head soon appeared out of one of the second storey windows, ________________.

3 . 用定语从句合并
Moreover, the sea is abundant in a variety of resources.
This enables us to solve the problem of energy shortages.

4 . People don’t have enough time to attend to the old at home, and it has become a prominent problem.(改为含有非限制性定语从句的句子)

5 . ①Nowadays, a nature domain located in Sichuan Province has been set up.
②Pandas can enjoy their life happily there.
→________________________________________________________________________（合并成含有where引导的非限制性定语从句的主从复合句）

6 . ①The panda is of an iconic animal in China.
②The panda has a black and white coat.
→________________________________________________________________________（合并成含有which引导的非限制性定语从句的主从复合句）

7 . The firefighters managed to save a girl. She was stuck in the big fire.
→The firefighters managed to save a girl, ________. (非限制性定语从句)
→The firefighters managed to ________. (分词作定语)

8 . 用定语从句合并
There will be 20 competitors to recite 40 poems in the competition.
The competition of course can broaden our horizon and enrich our knowledge.

9 . 我们到达了那家修建于1999年的工厂。
We arrived at the factory, ________.

10 . 课外活动可以给我们快乐，帮助我们放松自己，其中打篮球是我的最爱。
After­class activities can give us amusement and help us to relax ourselves, ________.