Passage 65
Secrets of the CR450
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阅读量:162词 难度: ★★★★ 建议用时:8分钟 正确率: /5
杨帆正在手机上浏览新闻。
China's new bullet train CR450 is now the fastest in the whole world! It
runs up to over 450 kilometres per hour in a test. When it carries people, it
will run at 400 km/h.
Do you know how it can run so fast? Here are its secrets!
1.
The train needs power
to run fast. The CR450 has
better motors. These
motors use electricity in a
smarter way. This gives the
train stronger power to run
faster.
2.
When you run fast, you will feel
the wind pushing against(阻挡) you.
A fast train feels this too. The CR450
has a very sharp head. This special
shape helps it cut through the air
easily. So, the air doesn't push back
as much, and the train can speed up.
3.
Is it easier to run
when you are lighter?
Yes! The CR450 is made
of new, light materials
(材料). Because it is
lighter, it can run faster
and use less energy.
Are you ready? Let's go to a faster, smarter and greener future with the CR450!
💡 思维新题
任务一:根据文章内容,选择正确的小标题完成第1~3小题,将序号写在相应的横线上。
A. Lighter Body
B. Stronger Power
C. Sharp Head
任务二:根据文章内容,补全杨帆的独白。

I can't wait to take it from Jinan to Beijing. It will take less than an hour. It runs
really 4. ! Do you know why? It's because the CR450 has super
power and a special 5. . Another reason is it's lighter than other bullet
trains. How amazing!

任务一：
1. B 【主旨大意】通读本段可知，列车需要动力才能跑得快，CR450 拥有更好的电机。因此本段标题应该是“更强的动力”。
2. C 【主旨大意】通读本段可知，CR450 拥有非常尖的车头形状，有助于减少空气阻力。因此本段标题应该是“尖的车头”。
3. A 【主旨大意】通读本段可知，CR450 采用新型轻质材料制造。因此本段标题应该是“更轻的车身”。
任务二：
4. fast 【细节理解】由文章中的“China's new bullet train CR450 is now the fastest in the whole world!”可知，中国新型高铁CR450 现在是全世界最快的列车，CR450跑得很快。
5. head/shape 【细节理解】由文章中的“The CR450 has a very sharp head. This special shape helps it cut through the air easily.”可知，CR450 有一个非常尖的车头，这种特殊形状有助于它轻松地切割空气。它的特殊车头形状是其速度快的原因之一。

【分析】
本题分为任务一（选择段落小标题，考查主旨大意）和任务二（补全独白，考查细节理解）。解题时，任务一需通读每个段落，提炼段落核心内容，匹配对应小标题；任务二需根据题干关键词，回到原文定位相关信息，确定填空词汇。
【解析】
任务一：
1. 阅读第1段，核心内容是CR450配备更好的电机，能提供更强动力，对应小标题B（Stronger Power）。
2. 阅读第2段，核心内容是CR450拥有尖车头，特殊形状减少空气阻力，对应小标题C（Sharp Head）。
3. 阅读第3段，核心内容是CR450采用新型轻质材料，车身更轻，对应小标题A（Lighter Body）。
任务二：
4. 题干描述CR450的速度，定位原文“China's new bullet train CR450 is now the fastest in the whole world!”，可知此处填fast。
5. 题干问CR450速度快的特殊原因，定位原文“The CR450 has a very sharp head. This special shape helps it cut through the air easily”，可知此处填head或shape。
【答案】
任务一：1. B 2. C 3. A；任务二：4. fast 5. head/shape
【知识点】
英语阅读理解（主旨大意）、英语阅读理解（细节理解）
【点评】
本题考查英语阅读基础能力，包含主旨大意和细节理解两类题型，需学生快速定位信息，整体难度适中，适合初中学生巩固阅读技巧。
【难度系数】
0.4