Mosa Meat is a company in the Netherlands.Its scientists grow meat in a lab.It looks just like the meat you buy in a supermarket.
   Why are people making lab-grown meat？It might be better for the environment.Most meat comes from animals raised on factory farms.The animals are crowded into a small space.They eat，they burp，and they poop.A lot of gas is produced.This gas is one cause of global warming.
   Johanna Melke is a biologist at Mosa.She says growing meat in a lab is a better way to produce it. "People want to eat meat， "she says. "This is how we solve the problem. "
   Here's how the meat is made.A scientist takes a tiny piece of muscle（肌肉） from a cow.It doesn't hurt much.The muscle is taken to a lab.It's put into a special soup.This helps the muscle grow bigger.From this，it is mixed with fat tissue（組織）and made into something like hamburger meat.
   Mosa is not the only company doing this.There are more than 70 of them.And they make more than just beef.They can grow meat from a chicken，a tuna—even a mouse.That's used to make cat treats.
   Mark Post helped found（創(chuàng)辦） Mosa Meat.He says people realize aware that factory farming can be harmful.But it's hard for them to give up meat. "I wanted to make the choice for those people easier， 'he says.
   So how does lab-grown meat taste？Laura Jackisch is a scientist at Mosa.She gave up meat years ago.Then she tasted Mosa's lab-grown beef. "I started craving（渴望） beef again， "She said， "without worrying about the environment".

（1）Which part of a magazine is the passage most probably from？

B

B

A．Nature.
B．Science.
C．Fashion.
D．Geography.
（2）How is the meat made？Put the following steps in the correct order.

A

A

a.The muscle is taken to a lab.
b.The muscle grows in a special soup.
c.Something like hamburger meat is made.
d.A very small piece of muscle is collected.
A．d-a-b-c
B．d-b-a-c
C．a(chǎn)-d-c-b
D．a(chǎn)-c-d-b
（3）What does the underlined word "it" in Paragraph 4 refer to？

D

D

A．The cow.
B．The lab.
C．The soup.
D．The muscle.
（4）How can Mark Post make it easier for people to give up meat？

C

C

A．By growing meat from mice.
B．By supporting factory farming.
C．By making tasty lab-grown meat.
D．By founding 70 companies like Mosa.
（5）What can we infer from the last paragraph？

B

B

A．Lab-grown meat tastes bad.
B．Lab-grown beef tastes like real beef.
C．Laura has been eating meat in recent years.
D．Laura doesn't care about the environment.