1、Unit 5A delicate world Section AStarting out adrenaline (肾上腺素). 答案 had taken over 3.PandaChina and is a national treasure. 答案 is native to 4.Can overseas studentsall kinds of activities in your school? 答案 participate in 5.It makes sense to work on the problem before it gets. 答案 out of control 6.As a
2、 result,these endangered animals even. 答案 die out 7.Taylor had just moved to the town a monthbefore. 答案 or so 8.Today Chinese calligraphy isa subject in schools. 答案 once again .完成句子 1.我很吃惊他会想出如此好的主意。 I was amazed that hesuch a sweet idea. 答案 had come up with 2.当去掉脂肪和盐,食物就少了些味道。 When fat and saltfood
3、,the food tastes as if it is missing something. 答案 are removed from 3.今年,选择这一学科的学生人数减少了 30%。 This year,the students who choose this subject. 答案 have decreased by 30% 4.尽管我们都很担心,结果一切都顺利。 Despite our worries everythingwell. 答案 turned out 5.他明确表示他对这门学科不感兴趣。 Hehe was not interested in the subject. 答案 ma
4、de it clear that 素养提升 .阅读理解 A 主题语境:人与自然 Plants are boring.They just sit there photosynthesizing(光合作用) while animals have all the fun.Right?Not so much.A new study has found that there is a long history of interactions between ants and plants.The ant and plant co-evolution (协同进化) started with ants fe
5、eding on plants and plants evolving ant-friendly features. Plants make a number of different structures that are specific for ant use.Some plants have evolved features that persuade ants into defending them from attack from other insects and even mammals.These include hollow thorns that ants will li
6、ve inside,or extra nectar(琼浆) on leaves or stems for the ants to eat.Some ants will just cheat and take the nectar and run,but some will stick around and attack anything that tries to hurt the plant.Other plants get ants to help them move their seeds around,by providing them with rich food packets a
7、ttached to the seeds.The ant will pick up the seed and carry it away,eat the food packet,and leave the seedoften in a nutrient-rich area where itll grow better,and since its farther away from its parent,they wont have to compete for resources. But scientists werent sure how the evolutionary relation
8、ship between ants and plants got started.If evolution is an arms race between species developing ways to make use of their neighbours,then scientists wanted to know whether plants or ants fired the first shot.It was a chicken-and-egg question,whether things started with ants developing behaviours to
9、 take advantage of plants,or plants evolving structures to take advantage of ants. The history of ants and plants evolving together goes back to the time of the dinosaurs,and its not easy to tell from fossils who fired the first shot.However,it is a question of little significance.Scientists say the
10、ir study matters because it provides a look at how these widespread and complex interactions evolved. 【语篇解读】这是一篇说明文。文章主要讲了一项新的研究发现,蚂蚁和植物之间的互动有着悠久 的历史。蚂蚁和植物的共同进化始于蚂蚁以植物为食,植物进化出对蚂蚁友好的特征。 1.Some plants attach food packets to their seeds in order to. A.reward the ants B.make a fool of ants C.provide nut
11、rition for the seeds D.get the seeds moved around 答案 D 解析细节理解题。根据文章第二段中“Other plants get ants to help them move their seeds around,by providing them with rich food packets attached to the seeds.”可知,选 D 项。 2.What does paragraph 2 mainly tell us? A.How plants and ants interact. B.What ants do to prote
12、ct plants. C.How plants and ants survive attacks. D.Why plants and ants need co-evolution. 答案 A 解析推理判断题。根据文章第二段中“Plants make a number of different structures that are specific for ant use.”和“Some ants will just cheat and take the nectar and run.by providing them with rich food packets attached to th
13、e seeds.”可知,第二段主要讲了植物和蚂蚁如何互动,故选 A项。 3.Which is true about the evolutionary relationship between ants and plants? A.Ants depended more upon plants. B.It caused a race for better evolution. C.How it got started was uncertain. D.It was of little value for future studies. 答案 C 解析细节理解题。根据文章倒数第二段中“But sci
14、entists werent sure how the evolutionary relationship between ants and plants got started.”由此可知 C选项描述正确,故选 C 项。 4.Whats the authors purpose of writing the passage? A.To introduce a science research method. B.To inform readers of a latest research finding. C.To arouse readers interest in science rese
15、arch. D.To criticize peoples traditional views about plants. 答案 B 解析推理判断题。第一段中“A new study has found that there is a long history of interactions between ants and plants.”是全文的主题句,由此推断出,作者写这篇文章的目的是告知读者最新的研究结果,故 选 B 项。 B 主题语境:人与自然 Give yourself a test.Which way is the wind blowing?How many kinds of wi
16、ldflowers can be seen from your front door?If your awareness is as sharp as it could be,youll have no trouble answering these questions. Most of us observed much more as children than we do as adults.A childs day is filled with fascination,newness and wonder.Curiosity gave us all a natural awareness
17、.But distinctions that were sharp to us as children become unclear;we are numb(麻木的) to new stimulation(刺激),new ideas.Relearning the art of seeing the world around us is quite simple,although it takes practice and requires breaking some bad habits. The first step in awakening senses is to stop predic
18、ting what we are going to see and feel before it occurs.This blocks awareness.One chilly night when I was hiking in the Rocky Mountains with some students,I mentioned that we were going to cross a mountain stream.The students began complaining about how cold it would be.We reached the stream,and the
19、y unwillingly walked ahead.They were almost knee- deep when they realised it was a hot spring.Later they all admitted theyd felt cold water at first. Another block to awareness is the obsession(痴迷) many of us have with naming things.I saw bird watchers who spotted a bird,immediately looked it up in
20、field guides,and said,a “ruby-crowned kinglet” and checked it off.They no longer paid attention to the bird and never learned what it was doing. The pressures of “time” and “destination”(目的地)are further blocks to awareness.I encountered many hikers who were headed to a distant camp-ground with just
21、enough time to get there before dark.It seldom occurred to them to wander a bit,to take a moment to see whats around them.I asked them what theyd seen.“Oh,a few birds,” they said.They seemed bent on their destinations. Nature seems to unfold to people who watch and wait.Next time you take a walk,no
22、matter where it is,take in all the sights,sounds and sensations(感觉).Wander in this frame of mind and you will open a new dimension to your life. 【语篇解读】这是一篇夹叙夹议文。作者希望我们能够运用我们的感官和情感去全方位感受自然 的美妙,去感受世界的美好。 5.What idea does the author convey in paragraph 3? A.To avoid jumping to conclusions. B.To stop co
23、mplaining all the time. C.To follow the teachers advice. D.To admit mistakes honestly. 答案 A 解析推理判断题。根据第三段第一句“The first step in awakening senses is to stop predicting what we are going to see and feel before it occurs.”唤醒感官的第一步是在它发生之前停止预测我们将要看到和 感觉到的东西。可知,作者认为在事情发生前避免过早下结论。与 A项“避免直接得出结论”意思相 近。故选 A项。
24、6.The bird watchers behaviour shows that they. A.are very patient in their observation B.are really fascinated by nature C.care only about the names of birds D.question the accuracy of the field guides 答案 C 解析细节理解题。根据第四段最后两句可知,这些观鸟者只是匆匆记下这些鸟的名字,而没有观察它 们在做什么。故选 C项。 7.Why do the hikers take no notice
25、of the surroundings during the journey? A.The natural beauty isnt attractive to them. B.They focus on arriving at the camp in time. C.The forest in the dark is dangerous for them. D.They are keen to see rare birds at the destination. 答案 B 解析细节理解题。根据第五段中“I encountered many hikers who were headed to a
26、 distant camp-ground with just enough time to get there before dark.It seldom occurred to them to wander a bit,to take a moment to see whats around them.”可知,徒步旅行者只关心能够及时到达目的地,而很少关心周围的事物。 故选 B项。 8.In the passage,the author intends to tell us we should. A.use our senses to feel the wonders of the worl
27、d B.get rid of some bad habits in our daily life C.open our mind to new things and ideas D.try our best to protect nature 答案 A 解析主旨大意题。根据最后一段前两句“Nature seems to unfold to people who watch and wait.Next time you take a walk, no matter where it is,take in all the sights,sounds and sensations.”可知,作者希望我 们能够运用我们的感官和情感去全方位感受自然的美妙,去感受世界。故选 A项。
