3.stimulate 刺激,激发
4.receptor 感受器;受体
5.nerve impulse 神经冲动
6.the cerebral cortex 大脑皮层
7.become conscious of 意识到......
[诱思导读]
根据短文内容,回答下列问题
1.What are senses?
Senses are the physical means by which all living things see,hear,smell,taste,and touch.
2.How do our sense organs work?
When something stimulates receptors in a sense organ,the receptors send nerve impulses along sensory nerves to the brain.Your brain then tells you what to do.
SectionⅠ Reading( Ⅰ ) (Welcome to the unit & Reading)
Ⅰ.匹配下列单词的词性及汉语意思
( )1.confuse A.vt.观察;注意到;评论
( )2.forecast B.vt.抓紧,抓牢
( )3.observe C.n.轻松,宽慰
( )4.narrow D.vi.犹豫,迟疑不决
( )5.approach E.adv.牢牢地,坚定地
( )6.hesitate F.vi.&vt.靠近;着手处理
n.靠近;方法;路径
( )7.grasp G.vt.使糊涂,使迷惑
( )8.anxious H.adj.狭窄的
( )9.firmly I.adj.焦虑,忧虑
( )10.relief J.vt.&n.预测,预报