Unit 2 第1课时 原卷版.docx

《Unit 2 第1课时 原卷版.docx》由会员分享，可在线阅读，更多相关《Unit 2 第1课时 原卷版.docx（6页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、Unit 2 第1课时 一、单项选择1Though Zhong Nanshan is in his 80s, he makes a great _ to the medical development.AcelebrationBcontributionCconversationDcollection2Thank you for the _ you gave me.Im glad theyre helpful.AsuggestionsBadviceCnewsDinformation3The doctor warns me that the risk of having a heart disea

2、se will be increased if I _ two more kilos.Aput onBend upCdeal withDtake off4Our parents are always there behind us. They are _ us whatever we do.Ainterested inBstrict withCproud ofDget on with5Nowadays, many young people get used to_ late every day.Exactly. But thats not a good habit.Astay upBstayi

3、ng upCstay outDstaying out二、完型填空 There are purple clothes, purple handbags, purple bicycles, purple furniture, even purple computers! So purple is one of the most 6 colors today. But in the past, purple was a very expensive and unusual color. Lets take a look at the rich history of the color purple.

4、Some scientists believe that the first plants to appear on Earth over 500 million years ago probably looked purple, not green. Plants today are green because 7 use green chlorophyll(叶绿素) to produce energy. But these early plants probably used something called retinal, which is a dark purple color.Du

5、ring the time of the Roman Empire(37BC-476AD), it was very 8 to make purple dye. The dye came from sea snails(海螺). But 10,000 dead sea snails 9 you just one gram of purple dye.as well as a very bad smell! This special purple dye was called Tyrian purple, and it was the preferred color of emperors.In

6、 16th-century England, purple was 10 for the kings family members. Queen Elizabeth Is clothes were purple, but ordinary people were not allowed to 11 the color.In 1856, William Perkin, an 18-year-old 12 student, noticed something strange while doing an experiment. The chemicals he used to clean his

7、instruments 13 with the chemicals he used in his experiment and produced a bright purple color. The 14 led Perkin to start a company using this chemical mixture to make purple dye. The dye was much 15 than sea snail dye. Thanks to Perkin, now anyone can afford to wear purple clothes.6ApeacefulBpopul

8、arCexciting7AothersBtheyCwe8AdangerousBcommonCdifficult9AgotBwastedCcost10AevenBneverConly11AwearBmakeCchange12AgeographyBscienceCart13AcomparedBmixedCconnected14AexperimentBchemicalsCdiscovery15AdarkerBmore expensiveCcheaper三、阅读理解AThe Forbidden City in Beijing was the emperors palace during the Min

9、g and Qing dynasties. It is also called “zijincheng (the Purple Forbidden City)”. Though its walls are red and its roofs are yellow, the palaces name mentions the color purple. How did it get this name?The character zi refers to the “ziwei star(Polaris,北极星)”. According to ancient Chinese astronomy (

10、天文学), the ziwei star was surrounded by 28 other stars, meaning it was the heart of the sky. People believed that the palace of the God Emperor, which is called ziweigong, or ziwei palace, was located on this star. Chinese emperors were believed to be the sons of the God Emperor. It was believed that

11、 their palace on Earth should be just like the ziweigong in the sky. Thats how the Forbidden City got its name.In Chinese culture, many people believe that the color purple stands for good luck. This belief began with Laozi, the ancient philosopher(哲学家) and founder of Taoism(道教) who lived around 2,5

12、00 years ago. One day, when Laozi was traveling through the Hangu Pass(函谷关) in Henan from the east, a purple mist(薄雾) suddenly appeared in the air. It is believed that this mist was connected to Laozi in some way. This “purple air from the east” story made people believe the color was a symbol of gr

13、eat saints from that point on.16The Forbidden City has another two names EXCEPT _.AzijinchengBziweigongCthe Purple Forbidden City17Ancient Chinese believed that ziwei star was _.Athe heart of the skyBthe name of the emperorCthe palace of the God Emperor18In Chinese culture, many people believe that

14、the color purple stands for _.ALaoziBthe emperorCgood luck19What is the main idea of the last paragraph?_AWhere Laozi liked traveling.BWhy Laozi was the founder of Taoism.CWhat “purple air from the east” means.20What is the best title of the passage?_AChinas “purple” palace.BThe role of Taoism in Ch

15、ina.CDevelopment of the Forbidden City.BHave you ever wondered why different kinds of fruit have so many colors? According to Lu Wei from the Chinese Academy of Sciences, fruit colors actually come from their different pigments. These pigments appear in different amounts （数量）, depending on the fruit

16、s environment. This causes the fruit to turn a certain color.To find out how environment influences fruit colors, Chinese scientists studied more than 280 different fruit colors. They found that red fruits are likely to grow in cooler places. You can find them growing in many places around the world

17、 instead of just in one place. Blue and purple fruits mostly grow in warmer places. They grow a lot in just one specific （特定的） area. The closer the fruit is to the equator（赤道）, the darker its color will be.Animals also have an influence on the development of fruit colors. Animals eat fruit and drop

18、the seeds（种子）in other places later. This helps the fruit spread and grow in different places. Therefore, in order to attract（吸引） animals, some fruits develop colors that are easy to see. However, animals see colors in a different way. Fruit needs to develop colors that are suited to animals visual（视

19、觉的）abilities. For example, birds can see red more easily than humans can. So there tends to be more red fruit in areas where birds live.21The underlined word “pigments” in the first paragraph means _.A数量B味道C品种D色素22Where can you most probably find dark blue fruit according to the passage?_AIn the coo

20、l places.BAround the world.CNear the equator.DIn dry places.23According to the writer, _ can influence the development of fruit colors.AseedsBenvironment and animalsCvisual abilitiesDhuman activities.24The writer mainly tells us _.Awhy blue fruits mostly grow in cooler placesBwhy red fruits are like

21、ly to grow in warmer placesCwhy different kinds of fruit have different colorsDwhy animals drop the seeds of fruit in other places25Where can you most probably find the article?_AIn a storybook.BIn a sports magazine.CIn a movie poster.DIn a science magazine.四、完成句子26丽丽昨天晚上熬夜很晚，所以今天很累。（stay）Lily_ very late last night, so she is tired today.27我们担心他，因为他和别人相处有困难。We _ him because he has difficulty _ others.28他的父母对他的学习要求很严格。His parents _ _ _ his studies.29熬夜太晚对你身体不好。（完成译句）Its bad for your health to _ _ too late.The teacher gave us some _ _ _ _ _ .