四、侦探需要有敏锐的观察能力，同学们来到了“火眼金睛”闯关区。圈出每组中不同类的单词。
1. fine nine five
2. chocolate hamburger letter
3. again green white
4. boy put girl
5. eight seven step
6. Chinese them English

1. fine 2. letter 3. again 4. put 5. step 6. them

五、同学们来到了“智力解密”闯关区。根据提示，破解下列数字谜题，输入正确的密码，填写在四线三格内。

r i g h t

六、接着，同学们来到“线索分析”闯关区。根据图片线索提示，用数字给句子排序。
ruler
pom
club
club
ruler

loc6rm
()Choose letters from words.
()Choose some numbers.
()Put letters and numbers together.
()Choose some words.

2 3 4 1

七、侦探需要良好的交流能力来获取有效信息，同学们来到了“你问我答”闯关区。读句子，选择最佳答语，将其大写字母编号写在括号内。
（）1. What's this? A. My name is Sonia.
（）2. What's your room number? B. Sure.
（）3. What's your name? C. It's L-5-c-6-2-2-o-0.
（）4. How do you spell library? D. It's a green T-shirt.
（）5. Can you say that again? E. My room number is 201.
（）6. What's the Wi-Fi password? F. It's L-I-B-R-A-R-Y.

1. D 2. E 3. A 4. F 5. B 6. C