题型：语法填空（语篇） 题类： 难易度：普通
【名师课堂】沪教版（2024）英语七年级上册Unit 5 Off to space Section 4 Focusing on culture & Project
Have you ever dreamed of traveling in space? To travel in space, we first have to work out where our food from.
Today's space (tour) don't go to the Moon or Mars. They go to the International Space Station (ISS). There, the spacemen live for weeks to months.
If you visited the ISS years ago, nearly every kind of food you ate would have come from the Earth.
In 2014, scientists (send) the ISS a space garden with some vegetable seeds(种子). With water and some light, the vegetables in the garden grew. Those were the first foods being grow n on the ISS. But the spacemen couldn't eat them and had to send them back to the Earth. The next year, scientists made sure they were safe, the spacemen grew the (two) seeds. This time the vegetables were ready for the spacemen (eat).
Gardening is (difficult) in space than it is on Earth. gravity, plants don't know which way is up. But they learn how to grow. They send their leaves in the direction of light and their roots (根) into the soil.
The spacemen have also grown vegetables and flowers. It's important to know plant can flower in space because flowering is part of how some plants make fruit.
While the space garden is small now,(hopeful) it could one day help provide people with food on longtime space trips.
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