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下图分别为细胞分裂、分化过程模式图及西红柿植株简图,请你运用所学知识分析回答下列问题:

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同类题3

阅读短文,用方框内所给单词的正确形式填空,使短文意思通顺、完整。请将答案写在短文后相应题号的横线上。注意:①每个词只能用一次。②每空限填一词,有些词需要做相应的变化。③其中有两个多余选项。

usual, eat, mean, Britain, little, exciting, chance, or, although, common, if, spend

  In many European countries it is normal to have a long break in the middle of the day when all members of the family return to their houses to eat together. This is not very ____ in Britain because normally it is a long way from the place of work or school to the home. The ____ people often have a big breakfast before they go to work and the meal at midday is not____ _with the members of the family but with workmates or schoolmates. Lunch is normally____ between 12:30 pm and 1:30 pm. Most people finish work at five thirty. It often take at _____ an hour to get home from the school or workplace so people eat their meal ____ "dinner" between 6:30 pm and 9 pm.
On Sundays people don’t have to work so they take the ____ to eat together with their family. Sunday lunch is ____ the best meal of the week and many of the meals which are considered real British food are eaten for Sunday lunch, such as roast beef and pudding.
____ everyone in Britain understands that "breakfast" is the first meal of the day, there is a lot of confusion(混乱) about the words for other meals such as "dinner, lunch, tea, high tea, elevenses, brunch, supper". And if you ask a British person what these words ____ , most of them will give you a different answer according to what part of the country they are from.

同类题4

完形填空

    Just several days ago, a violent storm hit our community. I looked out of the window and witnessed a tree being1 by the fierce winds. The branches bent, and swayed back and forth, thanks to their 2 to avoid breaking. The leaves desperately stuck to the branches because their life3 the tree. The powerful trunk that 4 the tree upright bent slightly backwards from the force in a battle to 5 its position.

    After the storm had passed, the tree gracefully returned to its 6 position standing tall among the chaos. It managed to7 the storm. It didn't look the same as leaves had shed from its branches and the soil had loosened a bit, but what 8 is that the tree won the fight for its life.

    For a long time I couldn't understand why this tree9 my attention the way it did. As time passed, it became10 that it wasn't just about the tree but about the roots, which, although unseen, dig deep into the soil providing11 and nutrition. The roots allow the tree to be able to take a 12 because they are there to support them.

    I couldn't but ask myself how deep the roots are in my life.13 the next time you catch your kids 14 when the job is driving you crazy, when you are underpaid and the15 is tight, and when the storms of life are raging, go back to your roots. Life is full of16.They will make you sway, make you17make you lose some leaves but the deeper your roots the stronger you stand.

    Faced with18 you might bend but don't break. No matter how hard the wind blows don't let life 19 you into an uncomfortable position. Your 20 lies in your roots.