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return to wait...for be able to wave to separate from fly to because of |
Thank you for your help. But I can do it .
I cats in the house.
A telescope, called Gaia, is being designed by astronomers in Europe, and it couldn't be more different from PanSTARRS, which is another telescope being designed. While PanSTARRS will be looking for asteroids (小行星) and comets headed for Earth, Gaia will be looking at our entire galaxy (银河系).
Gaia is designed to draw a map of the Milky Way, our home galaxy. Just as a map of your town gives you a picture of where things are located, Gaia's map of the galaxy will tell astronomers where the stars are. Over five years, Gaia will observe (观察) about a billion stars and other objects in our galaxy. Each object will be observed about 70 times.
Gaia will be sent into space connected to a rocket. It contains two telescopes, each focused at a different angle (角度). These two telescopes act like Gaia's "eyes". The reason why humans can see things in 3D is that we have two eyes focused on the same object, at slightly different angles. By using two telescopes like eyes, Gaia can produce the first 3D map of the positions of the stars it views.
Gaia, which is to be sent into space in 2011, will be a powerful telescope. If you were to use it on Earth, for example, you could stand 600 miles away from your best friends and still get a clear picture of their hair.
Gaia is one of more than a dozen telescopes being designed by scientists right now. The_next_generation_of_telescopes_will_reveal_new_parts_of_our_universe_that_will_seem_surprising. The universe, with all its planets, stars and other strange objects, is a puzzle with pieces that we can see by using powerful telescopes.
If you're a firsttime language learner, you know that emotional(情感的) ups and downs are a normal situation. When you understand a concept or begin to comprehend the language, you may experience feelings of excitement. However, those are often followed by moments of disappointment and discouragement, during which you might feel as if you will never master the concepts and attain the ability to understand and communicate effectively. ．
Learn vocabulary effectively
Vocabulary is the most important part of communication. The more words you know, the more you can say and understand. The absolute best way to learn vocabulary is through the use of flash cards that you make by yourself. Purchase a set of 3×5 index cards(索引卡片) and cut them in half. . As you learn more information about each word, e. g. plural forms of nouns and principle parts of verbs, you can add these to the cards.
Research shows that language students learn more effectively and acquire more when they study frequently for shorter periods of time than if they study infrequently for extended periods of time. . This means doing a few homework exercises each day rather than doing all homework exercises the night before they are due.
Practice language actively
. Say vocabulary words out loud, read passages in the text aloud, do pronunciation activities orally and not just mentally. Write out the answers to activities rather than gliding through them in your mind. Read aloud entire sentences in an activity rather than just reading a fillin response. Transferring
language from your mind to your mouth is a skill that requires a great deal of practice.
A．Break study time into smaller periods
B．Then use flash cards as a learning tool
C．Try to study each day，and several times a day
D．The timetested approaches are effective in your learning
E．Write a word on the front and its English definition on the back
F．Whenever possible，speak the language aloud rather than reciting silently to yourself
G．Below are some approaches that will relieve your potential frustration and help you succeed in language learning
