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1、科技英语手抄报资料 导语：科技，不断地在改变我们的世界，使我们的.生活变得丰富多彩，有趣，便捷。下面是为你准备的科技英语资料，一起来看看吧！ We see stars sparkle, this is not because the stars change their brightness, but with the atmosphere, blocking the. Across the atmosphere between us and the stars, when the starlight through the atmosphere, they will re _ive the
2、impact of atmospheric density and thickness. The atmosphere is not absolutely transparent, its transparency will be different aording to the density differen _. Therefore, we look at the stars on the ground through it, youll see the stars as if flashing the same again. When we feel tired, the body h
3、as generated a lot of carbon dioxide. When the ex _ss of carbon dioxide, it is important to increase the oxygen needed to balan _ the body. Because these residual carbon dioxide, would affect the functioning of our body activity, then the body will issue a protective response, so e on playing yawn.
4、Yawning is a kind of deep breathing movements, it _kes us more than usual, sucked into oxygen and emit carbon dioxide, but also do it to eliminate the role of fatigue. The snakes body there are _ny scales, which is the outermost layer of their body armor. Scale is not only used to protect the body,
5、can also be their feet. Snake crawling forward, the body will be showed S-shaped. And every one in the S-shaped outside of the scales will tilt to help the snake move forward to seize the uneven road su _ _. The scale of muscle co-ordination with the snake, and can push the body forward in crawling,
6、 so the snake can move without legs呀! Sunflower chrysanthemum stems the following pla _s, contains something called plant growth hormone, substan _s. This _terial is aelerating function of reproduction, but it has a repulsive optical activity, when confronted with the light, they will go to the back
7、light side. Therefore, when the sun rises, sunflower stems will immediately hide backlight side to go on the whole plant looks toward the direction of the sun was bent. Our hair had something called melanin in substan _, the more melanin the more black hair color. The melanin s _ll, yellow or white
8、hair will be issued. Hu _ns in old age, the bodys various functions will gradually decline, pigment for _tion will be less and less, so the hair will gradually bee white ah! Firefly will be light because in the end of their abdomen are light-emitting devi _s, light-emitting devi _ filled with a numb
9、er of quality and light-emitting light-emitting phosphorus-containing enzymes, so that can be issued a flash of fireflies flash of light. The purpose of firefly light, in addition to lighting, there are _ting, warning, trapping and so on. This is also a munication tool for them, different types of f
10、ireflies light-emitting means emitting frequency and the color will be different, they like to take this to convey a different message. She was hungry and rolling will be called, it is because the food prior to eating fast to digest finished, although the empty sto _ch, but will continue to secrete
11、gastric jui _ the sto _ch. At this time the contraction of the sto _ch will gradually expand inside the liquid and gas will be welling up, resulting in rolling sound. Next time should no longer sto _ch the embarras _ent of cuckoo called ah! Because this is a nor _l physiological actions do. Body typ
12、e of a large ostrich class, but they do not fly overhead, and ah! This is not because their wings do not work, but their feathers are too soft, wings too s _ll, not fit for flying. In addition, the ostrich muscles developed, sternum flat again, and on the flight did not help. Ostriches live in Afric
13、a, due to the long living in desert areas, the body in order to adapt to the enviro _ent, they gradually evolved into what it is. Luncheon meat, lobster sau _ da _, to _to sau _, canned beans . are delicious food, they can be stored for a long time are not easily deteriorate. This is because canned food is sealed, the bacteria can not enter. People in the _nufacture of canned food, when the canned air in all out, and then seal it. In the absen _ of air case, even if some bacteria inside the food from being contaminated, they can not survive or breed ah! 模板,内容仅供参考
