题目内容

阅读理解。
     Each cell in the human body contains about 25,000 to 35,000 genes, which carry information that determines
your traits. Traits are characteristics you inherit from your parents; this means your parents pass some of their
characteristics on to you through genes. For example, if both of your parents have green eyes, you might inherit
the trait of green eyes from them. Or if your mom has freckles, you might inherit that trait and wind up with a
freckled face. And genes aren't just in humans - all animals and plants have genes, too.
     Genes hang out all lined up on thread-like things called chromosomes. Chromosomes come in pairs, and there
are hundreds, sometimes thousands of genes in one chromosome. The chromosomes and genes are made of
DNA, which is short for deoxyribonucleic acid.
     Chromosomes are found inside cells, the very small units that make up all living things. A cell is so tiny that
you can only see it through the lens of a strong microscope, and there are billions of cells in your body. Most
cells have one nucleus. The nucleus, which is sort of egg-shaped, is like the brain of the cell. It tells every part
of the cell what to do. How does the nucleus know so much? It contains our chromosomes and genes. Tiny as
it is, the nucleus has more information in it than the biggest dictionary you've ever seen.
1. What is the best title of this passage?
A. What Is a Gene?
B. How Do Genes Work?
C. What Does A Gene Consist of?
D. How Do Nucleus Command Cells?
2. What does the underlined word "inherit" probably mean in the first paragraph?
A. carry
B. send
C. obtain
D. pass
3. Which of the following is NOT true according to the passage?
A. The parents pass some characteristics on to their children.
B. All living things receive traits from the old generations.
C. One's green eyes might be passed on from the parents.
D. A mother's freckled face might affect her young's face.
4. From the passage we can know that _____.
A. genes can decide all your characteristics from parents
B. genes exist inside cells that make up all living things
C. genes tells every part of the cell what to do
D. Chromosomes come in pairs containing genes.
5. From the passage we can conclude that _____.
A. not all cells have one nucleus inside
B. not all living things are made up of cells
C. genes aren't in humans but in animals and plants
D. DNA is made of chromosomes and genes
1-5 ACBBA
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阅读理解

　　My father made a deal with me that he would match whatever I could come up with to buy my fir st car．From the time I wa s a saver．My allowance, back in tho se day s, wa s twenty five cent s a week．I grew up on a farm near a small town called Ventura．In tho se day s the area wa s mo stly agricultural．The climate wa s and still i s a s clo se to perfect a s you could get．I earned some of my money picking one crop or another．When I wa s about ten, a school friend' s family owned walnut orchard s(果园)and it wa s harve st time．She told me we could earn five dollar s for every bag of walnut s we picked．I certainly learned about picking walnut s that day．Not surprisingly, that wa s my fir st and la st time a s a walnut picker．

　　In 1960 my grandmother pa s sed away．She left me 100 share s of AT＆T．One hundred share s of stock don't seem like much today but back then tho se share s paid me＄240 per year in dividend s(利息)．That wa s huge for a kid my age．

　　By the time I wa s seventeen．I had saved up ＄ 1, 300 and I knew exactly that I wanted．Ithink my father wa s somewhat suri sed when I announced I had saved up ＄ 1, 300 and wa s ready to buy my new car．I'll never forget the evening my father said, “Let' s go see about that car”．I wa s so excited．

　　My father could have ea sily ju st given me the car but he alway s in si sted that hi s children work for what they got．Thi s wa s not a bad thing．I learned self-reliance．Self-reliance i s equal to freedom．Now that I think about it I need to be thanking my father．

(1)

Which one of the following s didn't belong to the saving of ＄1, 300?

[　　]

A．

Weekly allowance．

B．

Her earning s by picking crop s．

C．

Share s left by grandma．

D．

Money earned from selling share s．

(2)

The underlined part in the second paragraph probably meant ________．

[　　]

A．

she didn't have the chance of picking walnut s

B．

enough money had been earned for her car

C．

the work wa s too hard for children like her

D．

she had no time to do that again for some rea son

(3)

We can know from the pa s sage the author got her car at the age of ________．

[　　]

A．

16

B．

17

C．

18

D．

19

(4)

The purpo se of the author' s father doing like that wa s to ________．

[　　]

A．

give the author freedom

B．

be unwilling to buy the author a car

C．

teach the author to learn self－reliance

D．

give the author a big surpri se

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