2主变分接头在（）。A.3档 B.4档 C.5档 D.2档

Normal bicycle safety guides usually tell you to wear you helmet(头盔) and to obey the law in order to avoid being hit on a bike. Is this advice really helpful?

Consider this for a moment: Wearing a helmet will absolutely do nothing to prevent you from getting hit by a car. Surely, a helmet might help you if you get hit, but you No.1 goal should be to avoid getting hit. Plenty of cyclists were killed by cars__________. However, if they had ridden without helmets, yet followed the guidelines listed below, they might still be alive today. So they saying that wearing a helmet is the first and last word in bike safety is, to some degree(在一定程度上), wrong.

The most common bike safety advice is “follow the law”. Ridiculously, most people are already aware that it’s stupid to race through a red light at a crossroads. As a result, it’s clear that the “follow the law” advice isn’t that helpful, either. In addition, following the law is not enough to keep you safe. Here’s an example: The law tells you to ride on the right, but if you ride too far to the right, someone started a parked car could open their door right in front of you and motorists pulling out of driveways and parking lots will be less visible. In that case you were following the law, but could still have been hit.

Then what should we remember in order to keep safe when riding a bike? I will tell you about it in the following paragraph.

小题1:What does the author say about wearing a helmet in the second paragraph?(within 8 words)

_________________________________________________________________________________________

小题2:Which sentence in the passage is the closest in meaning to the following one?

However, nearly everyone knows that riding through hared traffic light is dangerous.

_________________________________________________________________________________________

小题3:Please fill in the blank in the second paragraph with proper words or phrases to complete the sentence.(within 5 words)

_________________________________________________________________________________________

小题4: List the two regular bike safety guides.(within 8words)

_______________________________________②_______________________________________

小题5:Translate the underlined sentence in the third paragraph into Chinese.

__________________________________________________________________________________

阅读下面的材料，按要求回答问题。（4分）

霾，也称灰霾（烟霞），是指原因不明的因大量烟、尘等微粒悬浮而形成的浑浊现象。灰霾的组成成分非常复杂，包括数百种大气颗粒物。其中有害人类健康的主要是直径小于10微米的气溶胶粒子，如矿物颗粒物、海盐、硫酸盐、硝酸盐、有机气溶胶粒子等，它能直接进入并粘附在人体上下呼吸道和肺叶中。由于灰霾中的大气气溶胶大部分均可被人体呼吸道吸入，尤其是亚微米粒子会分别沉积于上、下呼吸道和肺泡中，引起鼻炎、支气管炎等病症，长期处于这种环境还会诱发肺癌。灰霾的厚度比较厚，可达1－3公里左右，灰霾天气导致近地层紫外线的减弱，易使空气中的传染性病菌的活性增强，传染病增多。

小题1:“霾”的有哪些特征是__________________________________________________（2分）

小题2:“霾”的危害是_______________________________________________________（2分）

帕金森病患者的体征除外（）

A.静止性"捻丸样"震颤

B.肢体肌张力减低

C.面具脸

D.行走时慌张步态

E.写字过小症

白铁皮

相对过剩人口是由资本主义制度造成的、相对于（）需要而言的人口过剩。

A.资本积累

B.价值实现

C.资本增殖

D.资本主义生产