给动物注射疫苗活类毒素所产生的抗体的免疫方法是（） A.人工被_爱下问搜题

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问题单项选择题 B1型题

给动物注射疫苗活类毒素所产生的抗体的免疫方法是（）

A.人工被动免疫

B.人工主动免疫

C.天然被动免疫

D.天然主动免疫

E.体液细胞免疫

答案

参考答案：B

完形填空

完形填空。

    An old man lived in a nice house with a large garden. He took care of his   1   all the time, watering and
fertilizing them.
    One day a young man went by the   2 . He looked at the beautiful flowers, imagining how happy he could
be   3   he lived in such a beautiful place. Then, suddenly he found the old gardener was   4  . He was very
surprised about this and asked, "You can't see these flowers.   5   are you busy taking care of them every
day?"
    The old man smiled and said, "I can tell you four   6 . First, I was a gardener when I was young, and I
really like this job. Second,   7   I can't see these flowers, I can touch them.   8 , I can smell the sweetness
of them. As to the last one, that's   9 ."
    "Me? But you don't know me," said the young man.
    "Yeah, it's  10  that I don't know you. But I know that flowers are angels that everybody likes. We enjoy
the happiness these flowers have brought us."
    The blind man's work opened our eyes and pleased our hearts, which also made his life happier.

( )1. A. flowers
(   )2. A. balcony
(   )3. A. after
(   )4. A. blind
(    )5. A. What
(   )6. A. stories
(   )7. A. although
(   )8. A. First
(   )9. A. me
(   )10. A. true

B. trees
B. kitchen
B. as
B. famous
B. Who
B. reasons
B. since
B. Second
B. you
B. hard

C. vegetables
C. garden
C. before
C. smart
C. Why
C. excuses
C. because
C. Third
C. my mother
C. cool

D. grass
D. study
D. if
D. friendly
D. Which
D. conclusions
D. unless
D. Fourth
D. my son
D. fair

填空题

用所给动词的适当形式填空。

1. Would you like ______(clean) up the city parks?

2. Could you please______(give) out food at the food bank?

3. We can't put off _______(make) a plan.

4. Two weeks ______(be) enough for us.

5. They ______(set) up a food bank next year.

6. He spends about two hours______(do) his homework.

7. Han Mei ______(say) she has learned more about animals.

8. I have______(run) out of all the money.

9. All the students will go out and play if it stops______(rain) later.

10. David has been______(try) to cheer him up for ten minutes.