学进去

   Flowers make people happy. Some new studies by Rutgers University scientists support the idea strongly, and the experts go on to guess that flowers have flourished(繁荣) on the earth, with their beauty evolving(进化) in recent several thousand years, partly because humans love them.

In the first test, 122 men and women were given either a flower, a pen, or nothing. Those who got flowers smiled more and talked more.

In the second test, bouquets(花束) were sent by flower sellers to 113 men and women. All 113 got flowers and a notebook, but some got them earlier and received a second bouquet when the others got theirs. By now you can guess the result. The more flowers, the more smiles.

From there, it’s a bit of a jump to the idea that flowers grow better because we love them.

Geneticist(遗传学家) Terry McGuire suggests that nature’s prettier flowers continued to live and develop well because people didn’t destroy them when they cleared for agriculture(农业). Instead, they grew them and have been doing so for over 5,000 years. “Because they make us happy, we take care of them. In that sense they’re like dogs. They are the pets of the plant world.” McGuire says.

Here is one way that might have worked:

Many kinds of flowers that are now planted used to grow only when people arrived there, McGuire explains. “As humans moved into a new place to clear land for agriculture, these flowers would have been weeds.” “These prettier flowers might have been kept because of beauty. The seeds(种子) would have been kept and replanted. Over time, the best of these flowers might have been chosen and the seeds more carefully kept.”

1．From the two tests we can know that ________.

A．people love pens more than flowers	B．people prefer flowers to other things
C．people love notebooks more than flowers	D．people love flowers as much as other things

2．The underlined word “theirs” probably means ________.

A．flowers	B．notebooks
C．flowers and notebooks	D．a second bouquet

3．According to this passage, which of the following statements is NOT TRUE?

A．We keep dogs because they make us happy.

B．People grow flowers for thousands of years.

C．The more flowers people get, the happier they are.

D．People left all the flowers alive when clearing land.

4．According to Terry McGuire, one possible way of flower evolution is ________.
a. the most beautiful flowers were chosen
b. people replanted the seeds of the flowers
c. flowers were wild plants at the beginning
d. people protected the prettier flowers while clearing land

A．c, d, b, a

B．c, b, d, a

C．b, d, a, c

D．d, a, c, b

5．What is the best title(标题) of this passage?

A．Geneticists and Flowers	B．Flowers — Pets of Plant World
C．Human’s Love Towards Flowers	D．Human’s Love & Flowers’ Evolution