UNIT3 Back to the past课后练7（含解析）

这是一份UNIT3 Back to the past课后练7（含解析），共6页。
课时分层作业(七)Ⅰ.单词拼写1．It became clear that I hadn't been able to convince(说服) Mike.2．He told his company to dismiss(开除) her.3．The nurse hung a chart(图表) at the foot of the bed.4．Developments on this issue will be dealt with in a subsequent(随后的) report.5．News of the losses caused panic(恐慌) among investors.6．The tank had leaked(渗漏) a small amount of water.7．Manufacturing industry was worst affected by the fuel shortage(缺乏)．8．She waited until the last of the guests had departed(离开)．9．He insisted(坚持) on telling us all the gory details about their divorce.10．Social workers went to great pains to acknowledge(承认) men's domestic rights.Ⅱ.阅读理解AThe world's earliest known fish hooks (钩) show that humans fished in the open sea for much longer than previously thought.Past studies have shown that early humans were able to cross the open ocean as far back as 50，000 years ago，but evidence that they could fish while in the open sea dated back only to 12，000 years ago.“In most areas of the world，evidence for our early ancestors' coastal exploitation was drowned by rising sea level，” said researcher Sue O'Connor.Now O'Connor and her colleagues have found evidence of prehistoric fishing tools and the remains of large fish such as tuna at a cave shelter known as Jerimalai，located in the Southeast Asian island nation of East Timor.Their discovery uncovered fishing hooks made from bone that date back to about 42，000 years ago.“It's possible that people caught the tuna in the deep channel that lies off the coast of the Jerimalai shelter，” O'Connor said.The site，first uncovered in 2005，also included bone points，shell beads，the remains of fish，turtles，bats and birds，and nearly 10，000 stone tools.The island of Timor has very few land animals overall and only small birds call the island home，perhaps explaining why the ancient people here went fishing.About half the fish remains at the site came from fish such as tuna.Catching such fast­moving fish requires much planning and complex technology，suggesting that early humans developed these skills earlier than previously thought.Some other scientists might say that most of the fish bones seen are from young fish，and thus might have been caught more easily off the coast as opposed to in open waters.While this may be the case，it's still not easy to catch tuna—it requires nets set in deep water.【语篇解读】　本文是一篇说明文。新的研究发现把人类开始深海捕鱼的年代提前了3万年。1．According to Sue O'Connor，evidence for our early ancestors' coastal exploitation        ．A．indicated tuna was a common dish for our early ancestorsB．showed the trend of sea movementC．was buried in cave sheltersD．was difficult to findD　[推理判断题。根据文章第二段的“was drowned by rising sea level”可知，远古人沿海探索的痕迹都被上升的海水所淹没，因此证据很难找到。]2．Sue O'Connor's study advanced the date of humans' fishing in the open sea by        ．A．50，000 years　　　 B．42，000 yearsC．30，000 years D．12，000 yearsC　[细节理解题。结合文章第一段的“evidence that they could fish while in the open sea dated back only to 12，000 years ago”和第三段的“Their discovery uncovered fishing hooks made from bone that date back to about 42，000 years ago.”可知，O'Connor的发现把人类开始深海捕鱼的年代提前了3万年。]3．Why did the ancient people on the island of Timor go fishing according to the text?A．The island was too small for the large population.B．It was very easy to catch fish around the island.C．There were few animals on land for food.D．People there loved eating fish.C　[推理判断题。根据文章第五段的“The island of Timor has very few land animals overall and only small birds call the island home，perhaps explaining why the ancient people here went fishing.”可推测，这里的陆地动物非常少，所以人们不得不到海中捕鱼充当食物。]4．The text is probably taken from        ．A．an official documentB．a scientific articleC．a newspaper adD．a book reviewB　[文章出处题。本文是一项科学发现，故选B项。]BOne spring morning many years ago，I had been prospecting for gold along Coho Creek in southeastern Alaska.Suddenly，no more than 20 paces away was a huge Alaskan timber wolf—caught in a trap.From her appearance，I guessed she had been trapped for several days.She needed my help，I thought.But if I tried to release her，she would turn aggressive to me.The wolf was clearly suffering.The trap's steel jaws had imprisoned two toes.They were swollen and lacerated，but she wouldn't lose the paw (爪子) — if freed.Yet each time I moved closer，she would make a frightening growl.If I could only win her confidence，I thought.It was her only hope.Over the next few days，I divided my time between prospecting and trying to win the wolf's trust.I talked gently with her，throwing her some meat.Gradually，I kept edging closer — though I was careful to remain beyond the length of her trap chain.At dusk on the fifth day，I delivered her dinner.Suddenly，I saw a slight wagging of her tail.I moved within the length of her chain.She remained sill.As a towering man，my heart was in my mouth，though.Within her reach，I wrapped my blanket around myself and slowly settled onto the cold ground.It was long before I fell asleep.The next morning，I slowly placed my hand on the wolf's injured leg.Unexpectedly，she made no threatening move.Then I applied pressure，the trap sprang open，and the wolf pulled free.My experience told me the wolf would vanish into the woods quickly.But cautiously，she crept toward me and sniffed my hands and arms.This went against everything I'd ever heard about timber wolves.Yet，strangely，it all seemed so natural.【语篇解读】　本文是一篇记叙文。作者看到了受伤的母狼后想尽办法帮助母狼脱离陷阱，母狼也不再有戒备之心。5．What happened to the timber wolf?A．She was stuck in a trap.B．Her food ran out.C．Her legs were swollen.D．She was caught in the author's trap.A　[细节理解题。根据第一段中“Suddenly，no more than 20 paces away was a huge Alaskan timber wolf — caught in a trap.”可知，狼被困在了一个陷阱里。故选A。]6．What was the only hope for the wolf to be saved?A．Some food.B．The author's care.C．Her trust in the author.D．Winning the author's confidence.C　[细节理解题。根据第二段中“If I could only win her confidence，I thought.It was her only hope.”可知，狼得救的唯一希望是她对作者的信任。故选C。]7．Why was falling asleep difficult for the author?A．He was too close to the wolf.B．The ground was too cold.C．The wolf remained still.D．The wolf wagged her tail.A　[细节理解题。根据第四段中“As a towering man，my heart was in my mouth，though.”可知，作者很难入睡因为他离狼太近了。故选A。]8．How did the author feel about the outcome of the event?A．It was frightening and surprising.B．It was unexpected but natural.C．It was humorous and natural.D．It was terrifying but encouraging.B　[推理判断题。根据最后一段中“This went against everything I'd ever heard about timber wolves.Yet，strangely，it all seemed so natural.”可推知，作者认为这只阿拉斯加森林狼对他如此亲昵的行为完全出乎了他的预料，然而，这一切又似乎是非常自然的。故选B。]Ⅲ.阅读七选五The dictionary defines “hobby” as an activity done regularly in one's leisure time for pleasure.Hobbies are a great way to forget about your worries.  1  So the stuff you do outside your money­making business is important.Bird watching could be a great hobby for you.  2  They can include listening for bird calls，finding and identifying birds by sight.There are bird­watching clubs if you want to make it a social activity.If you have kids，it's an ideal hobby to share with them.Children enjoy being able to spot birds and can learn identifications quickly.  3  Working in the soil can be a particularly rewarding hobby.You get some great side benefits from it，like improving the value of your home，making your living environment more pleasant and attractive，and growing food you can eat.Making beer is complex and variable enough to be interesting.The basic reward of a good bottle of beer is easy to enjoy and from there you can create your own personal variety.If you're someone who likes to experiment，this could be a fun hobby for you.  4  Taking photos is an easier hobby to get into than before.  5  Now a good digital camera means you can get into photography with low cost and low risk.Starting with the camera on your phone will get you knowledgeable about the basics of how light works.You can also learn about more complex camera features from how­to videos.A．The activity combines several senses.B．This hobby has grown in popularity in recent years.C．Gardening involves creativity and time outside in nature.D．Developing film used to be time­consuming and expensive.E．Studies have looked at how hobbies make you better at your job.F．Plus，you'll always have a great homemade gift to give friends and family.G．In fact，a lot of research has looked at the stress­reducing properties of hobbies.【语篇解读】　本文是一篇说明文。文章介绍了几种爱好。1．G　[由上一句“Hobbies are a great way to forget about your worries.”和下一句“So the stuff you do outside your money­making business is important.”可知，上文讲到爱好的优点是帮人忘却烦恼，下文讲有爱好的重要性，说明爱好真的很重要、很有意义，此处填写内容应与爱好的优点(减压)和重要性有关，承接上下文，故选G项。]2．A　[由下一句“They can include listening for bird calls，finding and identifying birds by sight.”可知，观鸟活动包括用耳听、视觉发现和识别，涉及了多种感官，A选项“这个活动结合了几种感官”切题。故选A项。]3．C　[由下两句“Working in the soil can be a particularly rewarding hobby.You get some great side benefits from it，like improving the value of your home，making your living environment more pleasant and attractive，and growing food you can eat.”可知，下文讲的活动与在地里工作有关，结合下文有关“种植”的描述，可得出作者在此处建议的活动是园艺，C选项“园艺实际上需要创造力和时间”切题。故选C项。]4．F　[由上三句“Making beer is complex and variable enough to be interesting.The basic reward of a good bottle of beer is easy to enjoy and from there you can create your own personal variety.If you're someone who likes to experiment，this could be a fun hobby for you.”可知，上文中作者认为自己酿造啤酒很有趣，讲了自己酿造啤酒的优点(即创造自己的个人品种)，并建议读者把自己酿造啤酒作为爱好，可得出此空填写内容应与自己酿造啤酒的优点有关，承接上文，F选项“另外，你将永远有一个伟大的自制礼物送给朋友和家人”切题，其中“自制礼物”指的就是“自己酿造的啤酒”，故选F项。]5．D　[由上一句“Taking photos is an easier hobby to get into than before.(拍照是一种比以前更容易养成的爱好)”和下一句“Now a good digital camera means you can get into photography with low cost and low risk.”可知，本段上下文在谈过去和现在的拍照状况，下文提及了现在的拍照状况，那该空应该填写过去的拍照状况，以此形成对比，承接上下文，D选项“冲洗胶片过去既费时又昂贵”切题。故选D项。]