Unit 6 Section A 3a—3c 基础+能力分层练 2026-2027学年人教版英语九年级上册

Unit 6 Section A 3a—3c 2026-2027学年九年级上册人教版基础+能力分层练

夯实基础

Ⅰ. 从方框中选出合适的词并用其适当形式填空

orbit   discover   resource   endless absent

1. Scientists believe that there are rich mineral ______ on the Moon waiting to be used in the future.

2. The International Space Station ______ the Earth once every 90 minutes at a speed of about 28,000 km/h.

3. Because of the ______ darkness in deep space, astronauts sometimes feel lonely during long missions.

4. The boy was ______ from school yesterday because he watched the rocket launch live online until midnight.

5. With the help of the new telescope, astronomers ______ three new planets similar to Earth last month.

Ⅱ. 根据汉语意思完成句子，每空一词

6. 换句话说，太空探索不仅能帮助我们了解宇宙，还能推动科技发展。

______ ______ ______, space exploration can not only help us understand the universe but also drive technological progress.

7. 如果没有重力，我们在空间站里甚至连一杯水都倒不了。

______ ______, we can’t even pour a glass of water in the space station.

8. 万一发生紧急情况，宇航员必须立刻返回登陆舱。

______ ______, astronauts must return to the landing module immediately.

9. 这个机器人被设计出来是为了代替人类执行危险的太空任务。

This robot is designed to ______ ______ ______ ______humans to carry out dangerous space missions.

10. 随着科技的发展，普通人也能够负担得起太空旅行的费用。

With the development of technology, ordinary people can also ______ ______ space travel.

能力提升

Ⅲ. 完形填空

阅读下面短文，从各题所给的A、B、C三个选项中，选出最佳选项。

What is it like to eat in space? For astronauts on the International Space Station (ISS), mealtime is quite different from that on Earth. There is no fridge, so fresh food goes bad quickly. Most space food is

11______ dried or canned. Astronauts add water to dried food before eating, and canned food is heated in a special oven.

But why can’t astronauts eat normally? The main reason is microgravity (微重力). On Earth, gravity keeps food on the plate and drinks in the cup. In space, however, everything floats! If you open a bag of cookies, the cookies will fly out and bump into equipment or get into astronauts’ eyes. Even a drop of water can float around and damage the 12______  inside the space station.

To solve this problem, space food is specially packaged. Drinks come in sealed (密封的) pouches with straws (吸管). Once you stick the straw in, you must close the clip (夹子) on it 13______  the liquid floats away. Solid food like nuts or biscuits is coated with a thin layer of oil or honey to make crumbs (碎屑) sticky and prevent them from floating.

Despite these challenges, astronauts still enjoy their meals. They often say eating in space feels like having a picnic 14______  you’re tied to your seat! Food tastes a little different too—because of microgravity, body fluids (体液) move to the upper body, causing astronauts’ noses to get stuffy (堵塞的). This affects their sense of 15______ , so spicy food is popular in space to add more flavor.

Food is also important for mental health. On long missions, astronauts miss Earth food badly. Sometimes, their families send care packages with favorite snacks. These small treats remind them of home and make the 16______  space journey more bearable.

In the future, space farms may provide fresh food for astronauts. Scientists are testing how to grow vegetables like lettuce and tomatoes in space. Growing food in space is not just about nutrition—it’s about making space feel a little more like 17______ . Imagine picking a fresh tomato in orbit—what a wonderful experience!

Space food has improved a lot since the early days of space exploration. Back then, astronauts ate tasteless paste (糊状物) squeezed (挤) from tubes. Today, they can enjoy shrimp cocktails, chicken soup, and even ice cream. These changes show how technology makes space life more 18______and comfortable.

As we plan longer trips to Mars and beyond, food will remain a key part of space travel. After all, a happy astronaut is a well-fed astronaut! The next time you sit down to a nice meal, remember—eating in space is not just about filling your stomach; it’s about staying healthy, happy, and connected to 19______  while exploring the unknown. And who knows? Maybe one day, you’ll be the one tasting a freshly grown space tomato 20______  the stars.

11. A. either  B. neither  C. both

12. A. computers  B. vegetables  C. clothes

13. A. so that  B. as soon as  C. as long as