strong D. is brushing()13. A. brush B. brushed C.brushing()14. A. use B. is used C.used D.uses()15. A. finished B. finish C. finishes D. to finish语法选择阅读下面短文,按照句子结构的语法性和上下文连贯的要求,选择可以填在横线上的最任 项How do astronauts live, work and play in...
In this way they can still keep strong and7.___ (health) when they get back home.Astronauts are hard-working whether in space or on the earth. 8. ___ the work is sometimes difficult, they are still interested in it and love the job. Many people admire the spirit of the astronauts...
Hilary Brueck
Your lungs are located within your chest cavity inside the rib cage (see illustration below). They are made of spongy, elastic tissue that stretches and constricts as you breathe. The airways that bring air into the lungs (the trachea and bronchi) are made of smooth muscle and cartilage, a...
On early Gemini flights, astronauts manually controlled much of the spacecraft's maneuvers during re-entry. Despite their best efforts, they usually landed many miles away from their target landing zone. Even Gemini XI, which relied on the spacecraft's computer system for an automatic re-entry...
How astronauts spend their days within a spacecraft or the International Space Station (ISS) is always a topic of curiosity.Astronaut Naoko Yamazaki explained that on the ISS, the day starts at6 in the morning according to Greenwich Mean Time, and NAS A sends“wake-up music” every morning...
Astronauts need special training. First they go to Houston.Texas.the home of the Johnson Space Center. There they 1 to see how strong and smart they are.One of the first tests is for the heart. The people walk or run. Next the space doctors see how fast
Astronauts, people who fly into space, need special training. First they go to Houston, Texas. That is the home of the Johnson Space Centre. There they are tested to see how strong and smart they are. One of the first tests is for the heart. The people w
Children learn more effectively if they are interested in the topic being taught. Some of the most popular topics among kids are planets, astronauts, and space. Astronomy can therefore be a highly effective way to introduce your children to STEM subjects. ...
Once an earthbag home is complete, you would never guess that the walls are made of dirt. The walls are strong enough to hang cabinets and pictures, and plumbing and electricity are installed just as in a conventional home. Lofts can provide extra space. Earthbag builders Kaki Hunter and Don...