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1、Unit 3 Lessons 16-18I.2020 杭 州 阅读理解T r a f f i c l i g h t s a r e r e d,y e l l o w a n d g r e e n.T h e y a r e v e r y i m p o r t a n t s i g n a l s （a号）.T r a f f i c l i g h t s a r e u s u a l l y p l a c e d a t b u s y s t r e e t c o r n e r s t o h e l p c o n t r o l t r a f f i c.S o
2、m e t i m e s,t h e y a r e o n s t r e e t s n e a r s c h o o l s a n d s h o p s,t o o.M o s t y o u n g c h i l d r e n a r et a u g h t w h a t e a c h o f t h e c o l o u r e d l i g h t s m e a n s,s o e v e r y b o d y c a n s t a y s a f e.T h e f i r s t t r a f f i c s i g n a l s w e r e
3、 u s e d f o r t r a i n s.T h e s i g n a l s w e r e p u t a l o n g s i d er a i l w a y t r a c k s（轨道）.T h e c o l o u r r e d w a s u s e d t o m e a n “s t o p b e c a u s e i t w a r n e dp e o p l e o f d a n g e r.A r e d l i g h t w a s a l s o t h e e a s i e s t c o l o u r t o s e e f
4、r o m a d i s t a n c e.T r a i n d r i v e r s c o u l d s e e t h e r e d “s t o p”l i g h t a h e a d a n d h a d e n o u g h t i m e t o s l o wd o w n a n d s t o p t h e i r t r a i n s.A g r e e n l i g h t w a s u s e d t o m e a n “t a k e c a r en a n d a w h i t el i g h t m e a n t g o .
5、H o w e v e r,t h e r e w e r e m a n y d a n g e r o u s a c c i d e n t s o n t h e t r a i n t r a c k s.S o m e t r a i nd r i v e r s t h o u g h t a s t a r s h i n i n g i n t h e n i g h t s k y w a s a w h i t e l i g h t t h a t m e a n t “g o”.S o t h e s i g n a l s w e r e s w a p p e d
6、.T h e “g o”l i g h t w a s c h a n g e d t o g r e e n a n d t h e “t a k ec a r e“l i g h t w a s c h a n g e d t o w h i t e.D u r i n g t h e s e t i m e s,p e o p l e t r a v e l l e d b y t r a i n o r i n c a r t s p u l l e d b y h o r s e s.Y e a r sl a t e r,w h e n c a r s w e r e b u i l
7、 t,p e o p l e b e g a n t o d r i v e t h e m b e c a u s e t h e y c o u l d t r a v e lm u c h f a s t e r t h a n h o r s e s.H o w e v e r,t h e r o a d r u l e s f o r d r i v e r s w e r e n o t v e r y c l e a ra n d m a n y p e o p l e w e r e h u r t c r o s s i n g t h e r o a d s.Y e l l
8、 o w w a r n i n g s i g n s h a d t o b e p l a c e db e s i d e t h e r o a d s t o r e m i n d d r i v e r s t o t a k e c a r e a n d a l l o w p e o p l e t o c r o s s s a f e l y.T o d a y,t o w n s a n d c i t i e s a l l o v e r t h e w o r l d h a v e t r a f f i c l i g h t s.R e d a n d
9、g r e e nl i g h t s m a t c h t h e s i g n a l s u s e d o n t h e r a i l w a y s.Y e l l o w l i g h t s a r e e a s y t o s e e,s ot h e y a r e u s e d t o w a r n d r i v e r s t h a t t h e y s h o u l d s l o w d o w n a n d p r e p a r e t o s t o p.（）1.W h y w a s t h e c o l o u r r e d
10、u s e d t o m e a n “s t o p”?A.I t r e m i n d e d p e o p l e o f t r a f f i c r u l e s.1B.It helped trains run smoothly.C.It gave people a warning of danger.D.It was the first colour people thought of.()2.What does the underlined word“swapped”in Paragraph 3 mean?A.Designed.B.Exchanged.C.Suggest
11、ed.D.Compared.()3.In which order did the“take care“light develop?a.A white light b.A green light.c.A yellow light.A.a-b-c B.b-c-a C.a-c-b D.b-a-c()4.What is the passage mainly about?A.The advantages of traffic lights.B.The history of traffic lights.C.The importance of traffic lights.D.The meanings o
12、f traffic lights.n.任务型阅读阅读下面短文,按要求完成59题。Where does your food come from?How is it made?These days,many people worryabout food safety.But food safety is not a new worry.In 1906,Upton Sinclair wroteThe Jungle.The book is the story of a poor family in Chicago.It is also about thedangerous ways that food
13、 was prepared.People were so worried that the U.S.startedtesting food.These days,most food in the world is safe.Laws control where food comes from.They also control how food is managed and prepared.Laws are important.But its more important to make sure the rules are followed.A good food safety syste
14、m keeps2people safe.It also helps them eat healthy food.Labels（标签）on food give peopleimportant information.Then they can make good choices about their food.Although food safety systems usually work,there can be problems.Sometimesmistakes are made.For example,a truck might carry eggs and then ice cre
15、am.Theice cream could make people sick when the truck isnz t cleaned before carrying it.Other problems are not mistakes.Sometimes companies break rules to make more money.When this happens,people don t know if their food is safe.As we all know,food is closely related to our daily life.We should take
16、 actionto make food safer!5 题完成句子;6、7 题简略回答问题;8 题找出并写下第三段的主题句;9 题将文中画线句子译成汉语。5.People were so worried about food safety that the U.S.started.6.What can people do after reading the information on food labels?7.When could ice cream make people sick in theexample?8.9.3答案I.【主旨大意】本文是一篇说明文。文章讲述了交通灯的发展史。1.
17、C 细节理解题。根据第二段第三句 The colour red was used to mean stop becauseit warned people of danger.”可知选 C。2.B词义猜测题。从上下文可知:轨道上经常发生事故,是因为一些火车司机认为黑夜中星星闪耀着白光意味着“通行”，所以绿色与白色信号灯代表的指令发生了互换。绿灯意味着“通行”，白灯意味着“小心二3.D推理判断题。第二段最后一句说绿灯表示“小心”，第三段最后一句说白灯表示“小心”，第四段和第五段最后一句是黄灯表示“小心”，所以顺序应该是“绿-白-黄”。4.B主旨大意题。本文讲述的是交通灯的历史。II.5.testing food/to test food6.They/People can make good choices(about their food)./Make good choices(abouttheir food).7.W hen the truck isn t cleaned/clean before carrying it.8.Although food safety systems usually work,there can be problems.9.但是确保/保证遵守规则更加重要。4