Unit 6 Space and Beyond Writing & Presenting ideas 课件-2023-2024学年高二英语外研版（2019）选择性必修第四册

Unit 6 Period 5 Writing & Presenting ideas 新 课 导 入 What do you know think about living in space? 课 堂 学 习 1 Read the passage and answer the questions. In space, even the most straightforward, everyday tasks can be quite difficult for astronauts who are spending months on board a spacecraft. In this zero gravity world, there is no up or down, and while sleeping on the ceiling might sound like fun, astronauts need to be strapped to sleeping compartments to protect themselves from injury. Although not many people enjoy doing housework, astronauts need to find the self-discipline to keep the small interior of their spacecraft clean; even using a vacuum cleaner to stop dust from getting into the air filters. A vacuum cleaner also comes in handy for fetching items that are floating around out-of-reach! Astronauts also need to keep themselves clean. To do this, they use special soap and shampoo which do not need to be rinsed off with water. After brushing their teeth, they spit into a towel. With no gravity to push against, astronauts’ bones and muscles can become weak. In order to stay fit, astronauts have to exercise on a regular basis. And while some food items, such as cakes and fruit can be eaten in more or less the same way that they are on Earth, water needs to be added to much of the food that is eaten in space. Nonetheless, a menu for a hungry astronaut can still be varied and balanced, often including soup, prawn sandwiches, as well as fruit yoghurt. And as salt and pepper would simply float away, astronauts are provided with these in liquid form. Carrying out these everyday tasks effectively helps the astronauts stay healthy and focus on their work in space — after all, imagine what would happen if they caught a cold and started to sneeze! 1 What is the main reason why everyday tasks are less simple in space? 2 Why is it important for astronauts to exercise regularly? 3 What else do you know about life on a spacecraft? Everyday tasks are less simple mainly b