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Linguigo · No. 14A2科学3 分钟AI 生成

NASA Introduces New X-70 Experimental Aircraft

图片：ThePixelman / Pixabay

本篇内容
  • – 读一篇关于“科学”的短文
  • – 学习 8 个单词
  • – 练习 一般现在时 (Present simple)

experimental, aircraft, test, flight, control, fast, carry, weight

点一下不认识的单词。

NASA has a new experimental aircraft called the X-70 Fractal. It was shown to the public on Wednesday at the Kennedy Space Center in Florida. This plane helps scientists test new ideas for flying.

The X-70 can change its flight controls very fast. This helps NASA study how planes can move in new ways. The plane can carry up to two thousand pounds of tools inside and outside for many tests.

The X-70 weighs ten thousand pounds when it takes off. It flies fast and high, up to forty-five thousand feet. It can fly about one thousand seven hundred miles without stopping. This makes it good for many flight tests.

NASA has used many special planes before, like the Bell X-1 that broke the sound barrier. The X-70 will help NASA test new flight ideas and make better planes in the future. NASA hopes to fly the X-70 for the first time in two years.

事实来源：NASA，2026年11月5日 · 原文出处

难句解析

  1. 1

    NASA has a new experimental aircraft called the X-70 Fractal.

    句中 “called the X-70 Fractal” 是过去分词短语作后置定语，意思是“名叫X-70 Fractal”。整句：NASA有一架新实验飞机，名字叫X-70 Fractal。

  2. 2

    NASA has used many special planes before, like the Bell X-1 that broke the sound barrier.

    “that broke the sound barrier” 是定语从句，修饰前面的 Bell X-1，意思是“打破音障的那架Bell X-1”。整句：NASA以前用过很多特殊飞机，比如曾打破音障的Bell X-1。

  3. 3

    The X-70 will help NASA test new flight ideas and make better planes in the future.

    “help NASA test new flight ideas and make better planes” 中，“help”后面跟两个动词原形，表示“帮助NASA测试新飞行理念并制造更好的飞机”。整句：X-70将帮助NASA测试新飞行理念，并在未来制造更好的飞机。

本篇语法

一般现在时 (Present simple)

一般现在时表示习惯、经常发生的事和事实：I drink tea every morning. 主语是 he / she / it 或单数名词时，动词要加 -s 或 -es：She works. He watches TV. 否定和疑问用 do / does：I don't like coffee. Does he live here?

I / you / we / they + verb · he / she / it + verb-s

故事中的例句

  • NASA has a new experimental aircraft called the X-70 Fractal.
  • The X-70 can change its flight controls very fast.
  • NASA hopes to fly the X-70 for the first time in two years.

常见错误

第三人称单数忘记加 -s（中文动词没有变化）。

She work in a bank.

She works in a bank.

本篇单词

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6 道题，考考你对故事、单词和语法的理解。