房子里的灰尘竟会使我们发胖

                                                                                        

           House dust(灰尘) can make us fat. Scientists say we should keep our house clean. Some scientists did research on mice. They found that house dust made the mice fatter. They collected dust from 11 houses. Dust from nine of the houses made the mice fatter. The dust made the hormones(荷尔蒙) in the mice different and then made more fat in their bodies.

            We breathe in small amounts of dust. A researcher said small amounts of dust made the mice fatter. There are EDCs in dust. They are in sofas. They are also in food packaging and household cleaners(家用清洁器). EDCs are in many houses. They can be bad for our health. 

        本时文内容由奇速英语国际教育研究院原创编写，未经书面授权，禁止复制和任何商业用途，版权所有，侵权必究！（投稿及合作联系：028-84400718  QQ：757722345）

1.What did the scientists do research on?

A Mice.

B Monkeys.

C Animals.

D Human beings.

解析：选A。A 细节理解题。根据第一段“Some scientists did research on mice.”可知科学家们在老鼠身上做了些研究，故选 A。

2.Dust from _________ of the houses didn’t make the mice fatter.

A nine.

B eleven.

C nineteen.

D two

解析：选D。D 细节理解题。根据第一段“They collected dust from 11 houses. Dust from nine of the houses made the mice fatter.”可知他们收集了 11 栋房屋的灰尘，其中有 9 栋房屋的灰尘使老鼠变胖了，即只有 2 栋房里的灰尘没有使老鼠变胖，故选 D。

3.The dust changed the _________ of the mice.

A hormones

B fat

C EDCs

D eating habits

解析：选A。A 细节理解题。根据第一段“The dust made the hormones(荷尔蒙) in the mice different..”可知灰尘使老鼠体内的荷尔蒙变得不一样了，故选 A。

4.From Paragraph 2, where can’t we find EDCs?

A In sofas.

B In household cleaners.

C In boiled water.

D In food packaging.

解析：选C。C 细节理解题。根据第二段“They are in sofas.They are also in food packaging and household cleaners(家用清洁器).”可知它们在沙发上。它们也在食品包装和家用清洁器上，并没有提到在开 水里，故选 C。

5.What’s the main idea of the passage?

A The dust made the hormones in the mice different.

B Junk food made more fat in animals’ bodies.

C Keeping houses clean can be bad for us.

D House dust can make people fat.

解析：选D。D 主旨大意题。根据全文可知文章主要围绕房屋灰尘会导致肥胖进行叙述，故选 D。