奇速英语官网—英语在线学习平台_让学英语更快乐_更快速

Scientists have found that taking a shower might not be so good for you.

New research from the University of Colorado has found there can be a slow increase of harmful bacteria(细菌) in shower heads. Researchers said the very first jets of water from the shower are the most dangerous. The shower acts like an aerosol(喷雾器), spraying(喷洒) the bacteria into the air. This means having a daily shower may not be as clean as we think. Scientists tested 50 different showers across nine US cities. They discovered that a third of these had very high levels of bacteria that can cause lung(肺) harm. Researcher Laura Baumgartner advised, “For most people, the answer is simple. Don’t stand in front of the shower when the first jets of water come out.”

The research is part of a wider project that is looking at our daily environment. In particular, the research team is looking at the microbiology(微生物学) of water and air in schools, homes and public buildings. Research into the bathroom environment provided interesting results. Ms. Baumgartner said showers were more dangerous than baths because they act like aerosol sprays. Shower heads are much harder to clean than baths because they are enclosed(封闭的). Furthermore, it is easier for us to take the bacteria into our lungs because of the steam(蒸汽) in the shower.

Baumgartner did say we should not be too concerned about her discovery, “I take showers every day, and I’m not at all worried,” she said.

1.What do people usually think of taking a shower every day?

A It’s clean.

B It’s safe.

C It’s not good.

D It’s dangerous.

解析：选A。A 细节理解题。根据第二段的“This means having a daily shower may not be as clean as we think.”可知，我们通常认为每天洗淋浴是很干净卫生的。故选 A。

2.What is actually harmful to our health?

A The aerosol.

B The sprays.

C The bacteria.

D The steam.

解析：选C。C 细节理解题。根据第三段第二句 “They discovered that a third of these had very high levels of bacteria that can cause lung harm.”可知，是细菌给我们的身体健康造成了伤害。故选 C。

3.How can we avoid the harm caused by the shower?

A Get away from the first jets of water.

B Stand in front of the shower.

C Look at the daily environment.

D Close the shower-head.

解析：选A。A 细节理解题。根据第三段“For most people, the answer is simple. Don’t stand in front of the shower when the first jets of water come out.”可知，解决这个问题的方法就是避开喷头喷出来的第一股水。故选 A。

4.Why are showers more dangerous than baths?

A Because showers take less water.

B Because showers spray bacteria.

C Because baths are more interesting.

D Because baths bring more steam.

解析：选B。B 推理判断题。根据第四段第四句 “Ms.Baumgartner said showers were more dangerous than baths because they act like aerosol sprays.”和最后一句“Furthermore, it is easier for us to take the bacteria into our lungs because of the steam in the shower.”可知，因为淋浴时的喷头就好像喷雾剂，更容易让我们吸入细菌。故选 B。

5.What does the underlined word “concerned” probably mean?

A Happy.

B Excited.

C Careless.

D Worried.

解析：选D。D 词义猜测题。根据后面的 “I’m not at all worried.”可知，她一点也不担心洗淋浴有细菌的问题，因此她叫我们也不要担心。故选 D。