I can’t understand ______the boy alone.

A. why she left B. why did she leave

C. why she had left D. why had she left

A 【解析】句意：我不明白她为什么把那个男孩一个人留下。这里why 引导的一个宾语从句，我们知道宾语从句中应该用陈述语序，故我们可以排除B、D两项；根据句意可知她把那个男孩一个人留下是一件过去的事情，应该用一般过去时，故选A。C选项使用的是过去完成时，表示过去的过去，不符合句意。

We are going for a picnic tomorrow. I’ll call Wendy to make sure________.

A. why to start B. when to start

C. what to start D. which to start

B 【解析】句意：我们明天要去野餐。我会打电话给温迪确定什么时候出发。考查特殊疑问词+动词不定式。A. why to start为什么出发；B. when to start什么时间出发；C. what to start开始做什么；D. which to start开始做哪一个。根据“我们明天要去野餐。”可知要确定出发的时间，故选B。

—Do you know sound travels very fast?

—Yes. But light travels ________ sound.

A. as fast as B. a little faster than

C. much faster than D. slower than

C 【解析】句意：-----你知道声音传播得很快吗？------是的。但是光比声音传播得快得多。A. as fast as和…一样快；B. a little faster than快一点点， a little（可以修饰形容词比较级）用来修饰faster，表程度；C. much faster than快得多，much（可以修饰形容词比较级）用来修饰faster，表程度； D. slower t...

—Where are you going for the coming winter camp?

—I won’t decide on the place ________ the end of this month.

A. until B. unless C. though D. through

A 【解析】句意：-----你要去哪里过冬？-----直到在这个月底我才会决定这个地方。A. until直到，在..以前；B. unless除非；C. though不过，然而；D. through穿过，通过，凭。短语not…until…：直到…才….；结合句意可知选A。

－Could you tell me _________? －Talking about festivals.

A. how they are playing B. what they are doing

C. where they are going D. why they are practicing

B 【解析】试题分析：句意：你能告诉我他们正在做什么吗？——谈论节日。结合答语"正在谈论节日”可推断，问句应是询问正在做什么，故答案为B。

–Excuse me . Could you please tell me _____ my car?

-- Sure . Park it right here. I’ll help you

A. how to stop B. where to park

C. where to stop D. when to park

B 【解析】试题分析：A. how to stop 怎样停止；B. where to park 在哪停车；C. where to stop在哪停止；D. when to park何时停车；句意：--打扰你一下，请你告诉我在哪停我的车好吗？---当然好了，把车停在这，我将帮你。结合句意，故选B

书面表达。

假如你校有几位来自美国的交换生，他们打算周末步行去翠湖公园。请根据提示为他们写出前往的路线，并简介公园情况。

要点提示：1．路线(见上图)；2.公园环境优美、凉爽， 还可以游泳、野餐等；

要求：80词左右，短文的开头已给出，不计入总词数。

Cuihu Park is not far from here. It's easy to get there. Just go straight

Cuihu Park is not far from here. It's easy to get there. Just go straight and turn right at the first corner. Walk along the road and turn left when you find a hospital. Cuihu Park is down the street ...

Traveling around big cities by taxi can cost a lot of money, but it's usually ________ to take the underground train to most places.

A. amazing B. expensive C. convenient D. exciting

C 【解析】在大城市乘出租旅游会花很多钱，但乘地铁去大多数地方还是很方便的。A令人惊叹的；B昂贵的；C方便的；D令人兴奋的。故选C。

（题文）—Let’s go shopping at the new mall.

—Why not shop online? It’s _____________.

A. expensive B. more expensive

C. less expensive D. the most expensive

C 【解析】句意：-我们去购物中心购物吧。-为什么不在网上购物呢？比较便宜。expensive形容词，贵的; more expensive比较级，较过的；less expensive，较便宜的、不贵的。根据语义可知，网上购物较便宜。 故选：C。

Could you tell me ________ the cool T?shirt?

A. where you buy B. where do you buy

C. where did you buy D. where you bought

D 【解析】句意：你能告诉我你在哪里买的这件漂亮的T恤衫吗？本题考查特殊疑问词引导的宾语从句，宾语从句需用陈述语序，B和C是疑问句语序，故排除B和C；根据语境可知买衣服发生在过去，应用过去式，故排除A，选D。