help algae and protozoa to grow very quickly.The temperature of the sea is also important. Red tides... in a week, scientists may tell fishermen to get ready for a red tide.Red tides often happen in dry, warm ……

素) to grow. When it gets cold, they stop making chlorophyll. The yellow and red pigments (色素) are under the chlorophyll. They now show up.In spring and summer, trees make chlorophyll (叶绿素) to grow. When ……

The little red hen勤劳的小母鸡One sunny morning, the little red hen finds an ear of corn (一束麦穗). She... too small.Hen: Then I will plant this corn myself.The little red hen waters (浇水) the corn every day ……

. Below them, black ants were fighting an army of red ants.In short, this comic book opened up a whole... me a new dream: When I grow up, I want to become an entomologist (昆虫学家) like him.In short ……

for a pumpkin to be ready to pick.● People need patience (耐心) to grow pumpkins! It takes 120 days...的土壤). At the start of the UK’s growing season in June, it was warm and sunny. The pumpkins could start to grow well ……

and there.    Word boxWord box如何形容火百合？如何形容火百合？orange-red 橘红色的bell-like 像铃铛的bright 鲜艳的orange-red 橘红色的orange-red 橘红色的bell-like 像铃铛的bell-like 像铃铛的bright 鲜艳的bright 鲜艳的   ……

can grow house plants, perhaps by the window or in the bathroom. Bill Jones loves his garden, just... leaves on cold afternoons in autumn and winter, getting everything ready in spring and cutting (修剪 ……

Tomatoes are the world's most popular fruit. Every year, people grow more than 60million(百万) tons ofthe juicy, red fruit. ……

have sharp points and they turn red in late autumn. Many maples grow in northern and eastern parts.... This is how trees "know" when to begin getting ready for winter.During autumn, there is not enough light ……

生长停不住Kelp is one of the world’s fastest growing plants. Its leaves can grow up to 50 cm a day.It can live for up to 10 years and grow to over 60 meters. It has no real roots. Something makes it stick to (粘住 ……

of the world’s fastest growing plants. It can live for up to 10 years and grow to over 60 meters. Its leaves can grow up to 50 cm a day. It has no real roots. Something makes it stick to (粘住 ……

to prove she is ready to grow up. “I think the last two years, especially the tour, really opened my mind... positioned to getting back many No 1s on different music charts with her new album Red. After ……

two to five days.5. Wait for your beans to grow more than 1 cm. Wash them. Your bean sprouts are ready!... other crops (农作物). People can also store beans for a longer time. Beans can grow in most places ……

changing. Their green leaves turn red, orange, yellow or brown. Then the leaves fall off completely... needs to survive and grow.That special process is called photosynthesis, and it depends on two ……

is never ready when you’re ready to eat it.”Scott Kelly planted the romaine lettuce on July 8 and the plants were ready 33 days later after being watered regularly. But the whole experiment means more ……