Plants don't have the central nervous systems that controlwhat we think of as “sleep"-but they do have circadian rhythms(昼夜节律), tuned to Earth's 24-hour light-darkcycle, even if they're kept in light full-time.32. What do trees do at night?A. They just stand still.B. They ...
What environmental cues do plants use to determine the seasons? Most cues such as temperature or water availability are quite variable: autumn can be warm; a late snow could fall in spring; also summer might be unusually cool and wet. So the only reliable cue is day length: longer days ...
school,when,intheplantingclubofherschool,shelearnedhowtogroweggplants. Fromthenon,shewas 1 ingrowingtheeggplants.Latershefoundabigpieceoflandin thehomebackyardtoplantseeds,hopingto 2 hercropinfall. Thiswas 3 thanitsounds.Shespentallhersparetimecaringfortheplantsandshe becamethinner.However,hergreatwork...
the planet will be OK. To some degree, that s right there must be a level of personal responsibility when It comes to the climate emergency. We all have to do our part. But individual action is a tiny drop in a heavily polluted ocean. We need systematic...
( ) 5. He often goes to the forest and watches plants there.提高篇C. 阅读短文,阅读短文,判断句子正误,用T或F表示。My name is Li Wen and I'm from China. Now I'm in America. I work with animals. I work in the evening and at night and I sleep in the day! I get up at about...
(do)something terribly wrong. ThisisjustawaythatBasu?sparentsshaped herunderstanding and appreciation of nature. 53. (live)inthecountryside,shespent heryouthstudyingantsbeforetherain,watching sunbirdsdrinkhoney,countingfirefliesandwatchingyoungplantsgrow.Thenherparentsdecided tomovetoanearbycity54. better...
4. 打算做… / 计划做…intend / plan to do 打算做…be going to do 打算 / 计划做…decide to do 决定做…determine to do 决定做…be determined to do 决定做…make up one's mind to do 下定决心做… 5. 表示想 / 希望want to do = would like to do 想做…hope to do 希望做…expect...
3. What does the woman decide to do? A. Go climbing. B. Buy camping equipment. C. Stay at home. 4.What are the speakers mainly talking about? A. What to eat today. B. How to post a notice online. C. Where to find the menu. ...
Do housework in advance to plan, I do the first step is: sweeping. I first use a broom to sweep every room, corner clean, spotless. The second step is: Change the garbage bag. I took the garbage bags in the trash can to the big trash can at the door, and then put on a new ...
根据第一段“When you look at the night sky, what you see are actually lots of ‘power plants’. Every star can make a huge amount of energy through nuclear fusion (核聚变)”可知,当你仰望夜空时,你看到的其实是许多“发电厂”。每颗恒星都可以通过核聚变产生巨大的能量,所以“power plants”指代...