Unit 5 Into the wild section C Developing ideas 同步练习-（2019）新外研版高中英语必修第一册.doc

1、Unit5 Into the wild section C Developing ideas一、单句填空1.It has all the (element) of a soap opera.2.He became a (photograph) more by accident than by design.3.You cant speak at this meeting.You are here as an (observe).4.He has studied the cultures of (variety)western countries.5.He is a boy with littl

2、e power of (concentrate).6.In front of me was a large building which showed the (magic) name.二、用适当的介词或副词填空1.Generally speaking,learning hard is worth in the end all.2.We should show our respect our teachers and parents.3.It is difficult for giant pandas to survive the wild.4.He would often stare the

3、 blackboard for a long time.5.Leaves fall the trees in the autumn.6.I must concentrate my work now.三、阅读理解Even if trees cannot walk, they are still on the move.In parts of the Arctic, entire forests are moving northward. Across the Arctic, temperatures are rising faster than anywhere else in the worl

4、d. As that happens, the tree line that marks where forests stop and the treeless tundra (冻原) starts has been moving northward. Trees growing along the tree line must protect themselves from the cold wind. To do this,_plants tend to grow horizontal (水平的) branches low to the ground. The energy it take

5、s for trees to grow this way means they dont have enough energy to make seeds.But as Earths climate has been warming, trees no longer have to just grow horizontally. Many can instead grow up toward the sky. This takes less energy. And with all that leftover energy, these trees have started producing

6、 more seeds. This happens especially in places where white spruce (白云杉) grows.White spruce, which is a North American tree, is quite able to produce a lot of seeds, which can move long distances in the wind. When windblown seeds end up on the tundra beyond the tree line, they eventually can sprout (

7、发芽) new trees. This explains how a forest can move. Of course, the process would work only if the tundra were warm enough. But in recent years, the whole planet has been warming.New trees will provide shelter for some snow. Keeping the suns rays from making the white surface disappear. Instead, the

8、trees absorb the suns heat. This warms the surrounding air. The extra warmth encourages even more trees to produce seeds. That further boosts a forests ability to expand. In addition, more trees will trap more snow, preventing much of it from being blown away. Snow can trap heat in the soil below, w

9、hich encourages trees to grow. The recent rise of temperatures has helped more trees grow past the tree line. People worry about impacts on the animals that depend on frozen conditions for food and shelter.1What is the main cause of the trees in the Arctic moving northward?AThe shrinking of northern

10、 tundra.BThe abundant resources in the north.CThe fierce and cold wind.DThe rising temperature.2What does the underlined word “this” in Paragraph 2 mean?ATo produce more seeds.BTo move northward.CTo respond to the climate change.DTo protect themselves from the cold wind.3The passage is most probably

11、 taken from _.Aa fashion magazineBa health reportCa science reportDa childrens magazine四、阅读七选五根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。AbirdthathumsMany birds are known for their special songs or calls.But one type of bird is famous for its hum (嗡嗡声) the hummingbird.In fact,hummingbirds get their na

12、me from the humming noise they make.1.Instead,the hum comes from the whir (嗡嗡声) of this tiny birds wings in flight.2.But one type of hummingbird makes a buzzing sound the bee hummingbird of Cuba.The bee hummingbird gets its name not only from its buzz,but also from its size.This smallest bird in the

13、 world is only two inches (5 cm) long.When a young hummingbird first hatches (孵化) from its egg,its body and wings are featherless (无羽毛的).But as soon as its feathers come out,the tiny bird starts to practice “humming”.3,the baby hummingbird can beat its wings fast enough to “whir”,and its ready to fl

14、y.When a grown hummingbird really gets going,it can beat its wings up to 200 times per second and fly forward at about 30 miles per hour.Hummingbirds can also beat their wings both forward and backward as well as up and down.4 it is the only type of bird that can hover (盘旋),or stay in one place in t

15、he air.While it hovers,a hummingbirds wings beat back and forth up to 70 times per second.5,watch its whirring wings and listen closely.Can you hear the hummingbirds hum?A.When its wings beat very fastB.After about a month of practiceC.The next time you see a hummingbirdD.This ability makes the humm

16、ingbird more specialE.Most hummingbirds wings make a humming soundF.You might guess that a hummingbirds hum comes from its voiceG.The baby hummingbird flies backward and forward as soon as it has feathers一、单句填空1.elements2.photographer3.observer4.various5.concentration6.magical二、用适当的介词或副词填空1.after2.t

17、o/for3.in4.at5.off6.on三、阅读理解1.D细节理解题。根据第二段第二、三句“Across the Arctic, temperatures are rising faster than anywhere else in the world. As that happens, the tree line that marks where forests stop and the treeless tundra (冻原) starts has been moving northward.”可知，在北极地区，温度的上升比世界上任何其他地方都要快得多。当这一切发生时，标志着森林结束

18、和冻原开始的树线一直向北移动。同时结合第四段中对森林北移的解释，可推知在北极树木向北移动的主要原因是温度升高，故选D。2.D推理判断题。根据第二段第四句“Trees growing along the tree line must protect themselves from the cold wind.”沿着林木线生长的树木必须保护自己免受寒风的袭击。此处this指的是保护它们自己免受冷风的袭击，故选D。3.C推理判断题。根据本文内容可知，主要介绍北极森林北移的原因以及全球变暖对树木的影响，属于科学研究范畴，应该归于科学报告类，故答案选C。四、阅读七选五1.F2.E3.B4.D5.C第8页（共8页）