in danger 处于危险中

in silence 沉默地

in debt 负债 come into fashion 开始流行起来，成为时尚

come into existence 产生；开始存在

come into effect 开始生效，开始实施 　　

　　Ⅴ.经典句式仿写

背教材原句 记句式结构 仿写促落实 1.Although surprised，the poachers had an advantage-there were more of them.

尽管偷猎者们很吃惊，但他们占有优势--他们人多。 状语从句的省略。 尽管这所房子是十年前修的，看起来却像新的。

Although_built_ten_years_ago，the house still looks new. 2.Often working at night，the poachers shoot whole herds of antelopes at a time，leaving only the babies，whose wool is not worth so much.

那些偷猎者常常是夜里出动，一次就捕杀掉整群的藏羚羊，只留下那些毛不那么值钱的幼崽。 现在分词作结果状语。 大自然为我们的祖国提供了丰富的自然宝藏，使之成为我们幸福的家园。

Nature has provided our country with wealthy natural treasures，making_it_a_happy_home_for_us. 3.But today the government seems to be winning the battle.

但是今天，政府似乎正在赢得这场战争。 seem后跟不定式。 当他妈妈进来的时候，汤姆看上去正在做作业。

Tom seemed_to_be_doing his homework when his mother came in. [核 心 要 点 探 究]