Unlike the Earth, though, the moon’s surface did not cool to form tectonic plates. Instead, it has a thick crust made up almost entirely of a light-colored mineral called feldspar. Feldspar is the main material that makes up the bright areas we can see on the moon today, also known a...
I could not see anything at all and I did not know if anyone else was near me. I felt nervous and my heart was beating fast. “I'm trapped(困住),” I said to ___5___. A moment of fear went through my mind, but I told myself to calm down ___6___ I was still alive....
【3】Why did the caller call out the steps for the dancers? A. Because the dance was invented by the caller. B. Because the dancers didn’t know the names of the steps. C. Because the steps were very particular. D. Because it was hard for the dancers to remember all the steps. ...
阅读理解A Biggest Unsolved Mysteries About the Earth Mystery 1: When did plate tectonics(板块运动) begin?Part of the reason that forecasting earthquakes is so difficult comes from the fact that we don't know much about the process that causes them: plate tectonics. The Earth's crust is made...
Only then did I realize I was wrong. 直到那时我才意识到我错了。 ② 实现(vt.) He realized his dream of being a doctor. 他实现了当医生的梦想。 S 1.save: ① 拯救、救(vt.) He jumped into water and saved the drowning man.
How on earth did you find a place like that? M: I just found it online. W: Great! Text 10 M: Hello, I’m Jeff Anderson from Coventry, England. And in today’s program, I’d like to share with you a special kind of English culture — the football. A lot of people in England...
7.Whatdid Matthewlearnfromhisownexperience? A.Honestyisthebestpolicy. B.Failureisawaytogrowup. C.Truthstandsthetestoftime. D.Imperfectionisanotherformofperfection. C Self-drivingcarshave been backed bythe hopethattheywillsavelivesbygettinginvolved infewercrasheswithfewerinjuriesanddeaths thanhuman-driven...
Arbor Day, much likeEarth Day, is a holiday that celebrates nature. Its purpose is to encourage people to plant trees, and many communities traditionally take the opportunity to organize tree-planting and litter-collecting events on or around the holiday. ...
(1)段落大意题。根据文章第一段By visiting these near Earth objects to study the material that came from the solar nebula,we can look for answers to some of humankind's most arresting questions,such as:How did the solar system form and where did the E
On Dec 9, three Chinese astronauts who are working aboard the Tiangong Space Station, gave a lecture above Earth and showed millions of students their life there. They also did some fun s1experiments. Let’s take a look at some of them. ...