04七年级Dressing up to Get into Space!练习-七年级英语时文阅读精讲精练

【导入】 1你知道吗： 假如你不穿宇航服进入太空会发生什么呢？首先由于压强的改变，身体内的空气会被挤压掉；接着，真空环境下沸点改变，血液内氧气蒸发引起身体膨胀，舌头和眼睛开始沸腾；由于肺内没有空气，血液停止向大脑输送氧气，15秒后你会昏迷；最终，由于你暴露在真空环境中超过90秒而回魂无术。 2、问题导入： 猜一猜 不穿宇航服，人可以在太空中存活多久？ A. Three days. B. One day. C. 10 minutes. D. 1.5 minutes. 答案：D 【正文文本】 Dressing up to get into space! After three Chinese astronauts went to space in June, they had two spacewalks. 三名中国宇航员6月份进入太空后，进行了两次太空漫步。Spacewalks can be dangerous.太空行走可能会很危险。There is no air in space.太空中没有空气。 And there is harmful radiation (辐射) there.而且那里有有害的辐射。Thanks to the Feitian spacesuit, astronauts can stay safe. 多亏了飞天宇航服，宇航员才能保持安全。 Feitian has 6 layers (层).飞天宇航服有6层。 Layer 1: 第一层：It is the closest to astronauts’ bodies. 它离宇航员的身体最近。It collects astronauts’ urine (尿液). 它收集宇航员的尿液。 Layers 2-5: 第2-5层：They help to control temperature and pressure (压力) inside the suit.它们有助于控制宇航服内部的温度和压力。 Layer 6:第6层：It protects astronauts from radiation.它保护宇航员免受辐射。 Numbers of the suit宇航服的相关数字 It weighs (重达) more than 120 kg.它的重量超过120千克。 It fits (适合) astronauts from 160 to 180 centimeters tall.它适合身高为160到180厘米的宇航员。 Astronauts can put it on within 5 minutes.宇航员可以在5分钟内穿上它。 It can support spacewalks as long as 8 hours.它可以支持长达8小时的太空漫步。 Tools of the suit太空服内置装置 Camera: 照相机：Astronauts can take pictures during spacewalk. 宇航员可以在太空行走时拍照。 Headphones and speakers: 耳机和扬声器：Astronauts can talk to the space station.宇航员可以与空间站通话。 【阅读答题】 Q1. Which of the following is not the advantage of a spacesuit? A. It can control the temperature and pressure (压力) inside the suit. B. It protects astronauts from radiation. C. It fits all kinds of astronauts. D. It has camera, headphones and speakers. Q2. What does “harmful” mean in the first paragraph? A. 充满挑战的 B. 有害的 C. 危险的 D. 紧迫的 Q3. Which of the following is True? A. Layers 4 protects astronauts from radiation. B. Feitian spacesuit weighs 120 g. C. Feitian spacesuit fits (适合) astronauts who are 175 centimeters tall. D. There is a telephone in the Feitian spacesuit. Q4. What’s the main