Plants are very important living things．Life could not go on if there were no plants．This is because plants can make food from air, water and sunlight．Animals and men can’t make food from air, water and sunlight．Animals get their food by eating plants and other animals．Therefore, animals and men need plants in order to live．This is the reason why we find so many plants around us.
If you look carefully at the plants around you, you will find that there are many kinds of plants．Some plants are large while others are small．Most plants are green.
Some plants have many small leaves．Others have only a few．There are many kinds of leaves．Leaves are of different shapes and colors.
Leaves are also different in other ways．Some leaves have long thin parts at the end, we call them leaf stalks, some have short leaf stalks, others even have no leaf stalks．The leaf edges are also different．Some leaves have smooth(平滑) edges．Some have a wave-shaped edges．Others have edges like the teeth of a saw(锯子).
根据短文内容，选择最佳选项。
1.Which of the following shows the right relation(关系) according to the first paragraph?
A. air—water—sunlight plants food
B. air—water—sunlight men food
C. air—water—sunlight animals food
D. air—water—sunlight living things food
2.We know from the passage that _________.
A. all leaves have leaf stal
B. all leaves have smooth edges
C. plants are different in shapes but have the same color
D. leaves are different in shapes and colors
3.The underlined words “leaf stalks” in the last paragraph means______.
A. 叶边 B. 叶纹 C. 叶柄 D. 叶尖
4.The main idea of the passage is ________.
A. how plants help men and animals
B. plants are important and they are quite different
C. plants are more important than air, water and sunlight
D. why we find so many plants and around us
Different vitamins are found in different foods．Then which foods should be eaten to keep us healthy? Let's look at some important vitamins for the answer．
Vitamin A helps to protect skin from becoming dry．It is also helpful to the eyes．Without vitamin A, you cannot see well in darkness．Vitamin A is found in animal liver and yellow part of eggs．Sweet potatoes, carrots and other dark colored fruit and vegetables have something that the body can change into vitamin A． |
Vitamin B changes foods into energy and helps the heart and nervous system (神经系统) to work smoothly．Without it, we will be weak and will not grow．It is found in grains and other foods like beans, nuts, meat and fish． Vitamin B helps to produce red blood cells．It is found in foods like eggs, meat, fish, milk and green leafy vegetables． |
Vitamin C is needed for strong bones and teeth, and for healthy blood vessels (血管)．It also helps wounds to heal (愈合) quickly．The body stores little vitamin C, so we must get it in foods like oranges, and cabbage． |
Vitamin D increases the levels of calcium (钙) in the blood．Calcium is needed for verve and muscle (肌肉) cells to work normally, as well as to build strong bones．Fish liver oil has vitamin D．In some countries, milk producers add vitamin D to milk so that it will be good for children． |
1.Some dark colored fruit and vegetables are good for our eyes.
2.According to the passage, vitamin B can be found in animal liver and eggs．
3.From the passage, we know that vitamin C is good for the skin．
4.Some milk producers add vitamin D to milk mainly to help children to produce blood cells．
5.We can get vitamins from everything．
I had never noticed her．She was not the kind of girl who could draw attention．She was not tall_______ looked ordinary．In class，she liked sitting at the back，reading or writing notes．One day I asked her_______aloud the text．When I heard her standard （标准）American English，I looked at her with new eyes．And I remembered her name﹣Kelly．Later on，the National College Speech Competition would be held．One student in our school________to attend．I thought it over and filled in her name．Kelly practised________for the competition．However，I was a little worried ________she was always too quiet．Could she really________well in the competition？
_____ the night of the competition，I sat in the front row of the hall very early．I told her to take it easy．Her face turned red and she said nothing．________seemed that she was really nervous．I felt upset，but I just patted her on the shoulder and ________her go to draw lots （抽签）．As a result，she drew No.9 while No.8 was a boy who was very good at giving speeches．
Sure enough，No.8 was very________．The whole audience made a warm applause．
While they________ about his speech with excitement，Kelly appeared on the stage．I with no courage to look at her．It was her________time to go up the stage，so I couldn't be angry with her for any small mistakes．But at that moment，I found ________I was so afraid of her failure（失败）．
The strong spotlight and large hall made her so small that nobody seemed to notice she had been on the stage．I felt ________．
But the moment that surprised me came．I clearly heard a voice，a very loud voice，"Now，please focus on me．"
Three times in all，louder and louder．
The whole audience fell silent．
I could hardly believe that loud voice came from the girl，who was usually soft﹣voiced and didn't catch attention at all．She gave a perfect speech．
I think I will never forget this touching lesson which my student taught me﹣never underestimate（低估）the power of the ________people．
1.A. or B. but C. as well D. and
2.A. read B. reading C. to read D. to reading
3.A. allow B. allowed C. was allowed D. allows
4.A. hard B. hardly C. harder D. hardest
5.A. though B. because C. when D. if
6.A. did B. be done C. do D. doing
7.A. In B. At C. By D. on
8.A. That B. This C. It's D. It
9.A. ask B. stop C. want D. let
10.A. success B. successful C. succeed D. successfully
11.A. talked B. would talk C. as well D. were talking
12.A. one B. the one C. first D. the first
13.A. when B. that C. why D. what
14.A. hopeful B. hopeless C. satisfied D. unsatisfied
15.A. silent B. outgoing C. active D. clever
__________ your classmates and you will make more good friends.
A. Worry about B. Fall in love with
C. Think about D. Get along well with
— You are wanted on the phone.
— __________ nobody knows I’m here.
A. And B. But C. So D. Or
—I wonder _______. He seems to be very worried.
— His favourite pen has gone missing and he is looking for it around the school.
A. what’s wrong with Mike
B. when Mike came to school
C. who Mike talked with yesterday
D. how Mike came to school this morning
