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中学一年级 · 阅读系列

Lesson 28 · The Rusty Bicycle

文体:对话 · 朗读音轨 28

本课插图:The Rusty Bicycle

先听一遍

听一听自行车为什么生锈,以及怎样防锈。

展开英文短文,再悬停查词

“My bicycle has a reddish-brown mark,” says Ren.

“That is rust,” his sister says. “The iron in the metal can react with oxygen and moisture.”

“Can I stop it?”

“Keep the bicycle dry. Paint and oil can also cover the metal and keep water and oxygen away.”

Ren wipes the bicycle after the rain. “A small job now can save a bigger job later.”

逐句跟读

点击任意一句听 Dicvo 的 Jenny 英语语音;开始连续播放前可选择每句播放次数。同一句的每遍之间、切换到下一句之前,都会留出约一遍句子时长供你跟读。原有整篇朗读仍可在上方播放。

请选择一句开始。

  1. “My bicycle has a reddish-brown mark,” says Ren.

  2. “That is rust,” his sister says.

  3. “The iron in the metal can react with oxygen and moisture.”

  4. “Can I stop it?”

  5. “Keep the bicycle dry.

  6. Paint and oil can also cover the metal and keep water and oxygen away.”

  7. Ren wipes the bicycle after the rain.

  8. “A small job now can save a bigger job later.”

读懂了什么?

读完后,试着用一句话说出本文的主要意思,并从原文找出支持它的一句话。

查看中文译文

“我的自行车上有一块红褐色的斑,”Ren 说。

“那是锈,”姐姐说,“金属里的铁会和氧气、水分发生反应。”

“我能阻止它生锈吗?”

“保持自行车干燥。油漆和油也能覆盖金属,使水和氧气难以接触到它。”

雨后,Ren 擦干自行车。“现在花点小工夫,就能省去以后更大的麻烦。”

本课重点词语

以下是本课重点词语的中文讲解;英文正文中有虚线的单词可悬停查看词义和发音。

bicycle
自行车;也可说 bike。
reddish-brown
红褐色的。
rust
铁锈;生锈。
metal
金属。
react
发生反应。
oxygen
氧气。
moisture
水分;湿气。
dry
干燥的;弄干。
paint
油漆;颜料。也可指‘涂漆’。
cover
覆盖;盖住。
背景知识

铁在同时接触水分和氧气时可能生锈。海边的盐分会加速这一过程。上漆、涂油、镀层等方法,都能减少铁与水和氧气接触。

资料来源:American Chemical Society 关于腐蚀的教育资料。

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