UNIT 5 Revealing nature Section IV Developing ideas 课件(共54张)+学案(含答案)+练习(含答案)--高中英语外研版(2019)选择性必修第一册

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名称 UNIT 5 Revealing nature Section IV Developing ideas 课件(共54张)+学案(含答案)+练习(含答案)--高中英语外研版(2019)选择性必修第一册
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科目 英语
更新时间 2025-07-11 16:23:08

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Section Ⅳ “Developing ideas”的课文习读环节
文意整体把握
Ⅰ.理清文脉结构
Ⅱ.把握主旨大意
1.What is the main idea of the text
A.Scientists find plants can “talk” with each other.
B.Scientists find plants can “talk” with people.
C.Scientists aren't sure whether plants can “talk”.
D.Scientists can use the secret language of plants.
2.What is the main idea of the first two paragraphs
A.Marco Polo spent most of his time studying plants.
B.There are some legends about talking trees.
C.In the movie Avatar, trees can save people.
D.New research has revealed that plants appear to communicate with each other.
文意深度理解
(一)阅读理解
1.Plants can release chemicals to do the following things except ________.
A.warning or calling for help
B.driving insects away
C.poisoning insects
D.attracting certain insects
2.What can we infer from paragraph 4
A.People can't hear the noise created by plants because they can't use sound to communicate with them.
B.All the plants can make noises with their roots.
C.Only chilli plants can tell if a neighbouring plant is helpful or unfriendly.
D.When some plants make clicking noises,perhaps they suggest drought is coming.
3.The text is likely to appear in ________.
A.a newspaper advertisement
B.a history textbook
C.a science magazine
D.a guidebook
[Tip]
由内容推文章出处
第3题为文章出处题,此类题目要求学生具备一定的常识,能够根据文章的体裁和内容来推断文章的出处或类别。常见的文章类别有newspaper(报纸)、magazine(杂志)、website(网络)、science report(科学报告)、education section(教育类)、advertisement(广告)、book review (书评)等。    
4.What might be the author's purpose in writing the text
A.To tell us the importance of talking plants.
B.To convince people that talking plants are only a thing of myths and legends.
C.To introduce some ways in which plants can communicate with each other.
D.To tell the readers how to communicate with plants.
5.Which of the following shows the structure of the text
①=paragraph 1 ②=paragraph 2
③=paragraph 3 ④=paragraph 4
⑤=paragraph 5 ⑥=paragraph 6
A.①/②/③④⑤/⑥ B.①②/③④⑤/⑥
C.①②③/④⑤/⑥  D.①/②③④⑤/⑥
(二)阅读表达
1.What have the recent scientific studies shown
                              
                              
2.What do you think are the benefits of studying plant communication?(Answers may vary.)
                              
内化读文技法
抓方法,明特点
本文是一篇科普说明文。此类文章通常以介绍某一科学知识为目的,运用恰当的说明方法通俗易懂地阐释某一科学领域的新发现。文章除了常用的下定义、举例子等说明方法外,为了增加形象性和生动性,还常用比喻、拟人、讲故事等方法。如本文开头讲述的有关“会说话的植物”的故事,第三段中提到的植物遇到危险时会发出呼救,以及第五段中将植物散播有毒物质攻击其他植物的行为比作“网络犯罪”等,读文时,要首先弄清各种说明方法的特点,再结合具体语境,体会其作用。
(一)赏用词之妙
1.①This happens when a plant, say a bean plant, gets attacked by insects.
②Some of these chemicals drive insects away.
③A chilli plant can tell if a neighbouring plant is helpful, or unfriendly.
赏析:以上各句中的黑体词都是熟词生义的用法。say用来举例,意为“比方说”;drive表示“驱赶”;tell表示“判断”。这些简单、常见词在语篇中常考查其熟词生义的用法。
2.When another bean plant detects the chemicals from its injured neighbour, it starts to release its own, different chemicals.
赏析:本句中动词detects, release生动地描述了植物利用自己的方式相互交流、互助抗敌的过程。
3.More surprisingly, plants also use sound to communicate.
赏析:本句中的More surprisingly为副词作评注性状语,表明说话人的看法和态度,写出了对植物也能用声音交流的难以置信。类似的副词还有clearly, certainly, surely, fortunately, hopefully, naturally, obviously, strangely等。
[仿写训练|完成句子]
①________________________, he was found by his neighbour and sent to the hospital in time.
幸运的是,邻居发现了他,并把他及时送到了医院。
②__________________, she didn't feel nervous, or regretful about her actions.
令人惊讶的是,她并没有对她的行为感到紧张或后悔。
(二)赏句式之高
1.Alexander the Great and Marco Polo were said to have visited such a tree in India.
赏析:本句中使用了“主语+be+said+to have done sth.”结构,意为“据说……做过某事”,借助具体事例照应了上文中提到的故事传说。
2.Scientists are learning more every day about the secret ways in which plants talk to each other.
赏析:本句中运用in which引导的定语从句进一步解释说明了the secret ways的具体内容。定语从句常在写作中用于扩充细节描写。
[仿写训练|完成句子]
①She ____________________________________ on this topic over the last 20 years.
据说在过去的20年里,她曾研究过这一课题。
②I'm writing to invite you to attend the lecture _______________________________________.
我写信是想邀请你参加下周日要举行的讲座。
(三)赏修辞之功
1.This is like a warning, or a call for help: “I'm being attacked!”
赏析:本句中作者使用了直接引语,采用了拟人的修辞手法,形象地说明了植物利用化学物质进行交流的现象,使描述更生动形象,更利于表达作者鲜明的感彩,增强语言的亲切感。
2.But just like our own Internet, the wood wide web has its own version of “cybercrime”.
赏析:本句中将植物争夺养分,散播有毒物质攻击其他植物的行为比作“网络犯罪”,使说明的内容更简单易懂的同时,也增加了文章的趣味性。
[仿写训练|完成句子]
①I was very happy and could ________________.(拟人修辞)我很高兴,并且能听到鸟儿在树林里唱歌。
②Dark thoughts about your physical appearance can hang over you all the time ______________.(比喻修辞)关于你外表的负面思绪可能会像乌云一样始终笼罩着你。  
(四)赏描摹之韵(段落结构)
Talking plants have long been a thing of myths and legends.Many cultures have stories of talking trees that give advice as well as warnings to people.Alexander the Great and Marco Polo were said to have visited such a tree in India.And in some modern stories, such as the film Avatar, trees can communicate with animals and people.
赏析:本段的写作模式为说明文段落常见的模式之一“演绎法”。第一句为主题句,点明主旨,后面几句为支撑句,举例进行解释说明。
Section Ⅳ
NO.1 精阅读
文意整体把握  
Ⅰ.①leaves ②detects ③sound ④roots ⑤unfriendly
⑥drought ⑦links ⑧attack
Ⅱ.1.A 2.D
文意深度理解  
(一)1~5 CDCCB
(二)1.Plants can communicate with each other.
2.We can protect plants better and raise the output of crops.
NO.2 美表达
(一)①Fortunately ②Surprisingly
(二)①was said to have done research
②that/which will be held next Sunday
(三)①hear the birds singing in the woods ②like a dark cloud(共54张PPT)
Section Ⅳ
“Developing ideas”的课文习读环节
NO 1
精阅读/提升阅读“理解力”
NO 2
美表达/强化写作“基本功”
NO 3
课时跟踪检测
目 录
No.1 精阅读/提升阅读“理解力”
Ⅰ.理清文脉结构
文意整体把握
Ⅱ.把握主旨大意
1. What is the main idea of the text
A.Scientists find plants can “talk” with each other.
B.Scientists find plants can “talk” with people.
C.Scientists aren't sure whether plants can “talk”.
D.Scientists can use the secret language of plants.

2.What is the main idea of the first two paragraphs
A.Marco Polo spent most of his time studying plants.
B.There are some legends about talking trees.
C.In the movie Avatar, trees can save people.
D.New research has revealed that plants appear to communicate with each other.

(一)阅读理解
1.Plants can release chemicals to do the following things except .
A.warning or calling for help
B.driving insects away
C.poisoning insects
D.attracting certain insects
文意深度理解

2.What can we infer from paragraph 4
A.People can't hear the noise created by plants because they can't use sound to communicate with them.
B.All the plants can make noises with their roots.
C.Only chilli plants can tell if a neighbouring plant is helpful or unfriendly.
D.When some plants make clicking noises,perhaps they suggest drought is coming.

3.The text is likely to appear in .
A.a newspaper advertisement
B.a history textbook
C.a science magazine
D.a guidebook

[Tip]
由内容推文章出处
第3题为文章出处题,此类题目要求学生具备一定的常识,能够根据文章的体裁和内容来推断文章的出处或类别。常见的文章类别有newspaper(报纸)、magazine(杂志)、website(网络)、science report(科学报告)、education section(教育类)、advertisement(广告)、book review (书评)等。  
4.What might be the author's purpose in writing the text
A.To tell us the importance of talking plants.
B.To convince people that talking plants are only a thing of myths and legends.
C.To introduce some ways in which plants can communicate with each other.
D.To tell the readers how to communicate with plants.

5.Which of the following shows the structure of the text
①=paragraph 1 ②=paragraph 2
③=paragraph 3 ④=paragraph 4
⑤=paragraph 5 ⑥=paragraph 6
A.①/②/③④⑤/⑥  B.①②/③④⑤/⑥
C.①②③/④⑤/⑥   D.①/②③④⑤/⑥

(二)阅读表达
1.What have the recent scientific studies shown
Plants can communicate with each other.
2.What do you think are the benefits of studying plant communication?(Answers may vary.)
We can protect plants better and raise the output of crops.
抓方法,明特点
本文是一篇科普说明文。此类文章通常以介绍某一科学知识为目的,运用恰当的说明方法通俗易懂地阐释某一科学领域的新发现。文章除了常用的下定义、举例子等说明方法外,为了增加形象性和生动性,还常用比喻、拟人、讲故事等方法。如本文开头讲述的有关“会说话的植物”的故事,第三段中提到的植物遇到危险时会发出呼救,以及第五段中将植物散播有毒物质攻击其他植物的行为比作“网络犯罪”等,读文时,要首先弄清各种说明方法的特点,再结合具体语境,体会其作用。
内化读文技法
No.2 美表达/强化写作“基本功”
(一)赏用词之妙
1.①This happens when a plant, say a bean plant, gets attacked by insects.
②Some of these chemicals drive insects away.
③A chilli plant can tell if a neighbouring plant is helpful, or unfriendly.
赏析:以上各句中的蓝体词都是熟词生义的用法。say用来举例,意为“比方说”;drive表示“驱赶”;tell表示“判断”。这些简单、常见词在语篇中常考查其熟词生义的用法。
2.When another bean plant detects the chemicals from its injured neighbour, it starts to release its own, different chemicals.
赏析:本句中动词detects, release生动地描述了植物利用自己的方式相互交流、互助抗敌的过程。
3.More surprisingly, plants also use sound to communicate.
赏析:本句中的More surprisingly为副词作评注性状语,表明说话人的看法和态度,写出了对植物也能用声音交流的难以置信。类似的副词还有clearly, certainly, surely, fortunately, hopefully, naturally, obviously, strangely等。
①____________, he was found by his neighbour and sent to the hospital in time.
幸运的是,邻居发现了他,并把他及时送到了医院。
②_____________, she didn't feel nervous, or regretful about her actions.令人惊讶的是,她并没有对她的行为感到紧张或后悔。
仿写训练/完成句子
Fortunately
Surprisingly
(二)赏句式之高
1.Alexander the Great and Marco Polo were said to have visited such a tree in India.
赏析:本句中使用了“主语+be+said+to have done sth.”结构,意为“据说……做过某事”,借助具体事例照应了上文中提到的故事传说。
2.Scientists are learning more every day about the secret ways in which plants talk to each other.
赏析:本句中运用in which引导的定语从句进一步解释说明了the secret ways的具体内容。定语从句常在写作中用于扩充细节描写。
①She ____________________________ on this topic over the last 20 years.
据说在过去的20年里,她曾研究过这一课题。
②I'm writing to invite you to attend the lecture ________________
________________.
我写信是想邀请你参加下周日要举行的讲座。
仿写训练/完成句子
was said to have done research
that/which will be
held next Sunday
(三)赏修辞之功
1.This is like a warning, or a call for help: “I'm being attacked!”
赏析:本句中作者使用了直接引语,采用了拟人的修辞手法,形象地说明了植物利用化学物质进行交流的现象,使描述更生动形象,更利于表达作者鲜明的感彩,增强语言的亲切感。
2.But just like our own Internet, the wood wide web has its own version of “cybercrime”.
赏析:本句中将植物争夺养分,散播有毒物质攻击其他植物的行为比作“网络犯罪”,使说明的内容更简单易懂的同时,也增加了文章的趣味性。
①I was very happy and could ______________________________. (拟人修辞)
我很高兴,并且能听到鸟儿在树林里唱歌。
②Dark thoughts about your physical appearance can hang over you all the time ________________.(比喻修辞)
关于你外表的负面思绪可能会像乌云一样始终笼罩着你。   
仿写训练/完成句子
hear the birds singing in the woods
like a dark cloud
(四)赏描摹之韵(段落结构)
Talking plants have long been a thing of myths and legends.Many cultures have stories of talking trees that give advice as well as warnings to people.Alexander the Great and Marco Polo were said to have visited such a tree in India.And in some modern stories, such as the film Avatar, trees can communicate with animals and people.
赏析:本段的写作模式为说明文段落常见的模式之一“演绎法”。第一句为主题句,点明主旨,后面几句为支撑句,举例进行解释说明。
No.3 课时跟踪检测
Ⅰ.阅读理解
A
Animals can move from place to place, but plants cannot.When an animal is under attack, it can run away or fight back.Plants certainly cannot run away, and they lack teeth and claws.But plants can defend themselves by using both physical and chemical means.
Some plants have their own ways to keep animals away.For example, the leaves of the holly plant have sharp spines that discourage grass-eating animals.Holly leaves on lower branches have more spines than leaves on upper branches.This is because the lower leaves are easier for most animals to reach.
Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat.Some grasses may contain a sandy material; eating such grasses wears down the animal's teeth.
Many plants also have chemical defenses.Some plants produce chemicals that taste bitter or cause an unpleasant reaction.Some plants may fight against an attack by increasing the production of these chemicals.When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger.This messenger sends to the roots the information to produce more nicotine.The higher levels of nicotine discourage the caterpillar.
Many plants depend on both physical and chemical defenses.A certain plant in China, for instance, has prickly (多刺的) leaves, and each prickle contains poisonous venom (毒液).A single experience with this kind of plant will teach an animal to stay away from it in the future.
语篇解读:本文是一篇说明文。文章主要介绍了植物是如何保护自己的。
1.The holly plant has more spines on the lower leaves because most animals .
A.are not tall enough
B.like the lower leaves only
C.are not clever enough
D.can get the lower leaves easily

解析:细节理解题。根据第二段最后一句可知,冬青植物下部的叶子上有更多的刺,是因为大多数动物可以很容易地够到下部的叶子,这些刺能阻止食草动物。
2.To defend themselves, oak trees use .
A.chemical means B.physical means
C.bitter chemicals D.sandy materials
解析:细节理解题。根据第三段中的“Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat.”可知,橡树使用的是物理上的方法,让树叶变得厚且坚硬,使得动物吃起来很困难。

3.How does tobacco protect itself against an attack from a caterpillar
A.Its leaves fight against the attack by physical means.
B.Its roots send a messenger to discourage the caterpillar.
C.Its roots increase the production of nicotine when it is attacked.
D.Its leaves produce poisonous sand to drive the caterpillar away.

解析:细节理解题。根据第四段中的“When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger.This messenger sends to the roots the information to produce more nicotine.”可知,烟草通过它的根来保护自己免受毛虫的攻击,当它受到攻击时,会产生更多尼古丁。
4.What would be the best title for this passage
A.Plants and Animals
B.How Plants Defend Themselves
C.Attacks and Defenses
D.How Animals Eat Plant Leaves
解析:标题归纳题。根据第一段及下文举例可知,文章主要介绍了植物是如何保护自己的。

B
It's getting cold and winter is coming.More than 4 billion birds will stream overhead on their migration to warmer grounds down south, where they will feed.One of my favorite places to see this migration in action is Bosque del Apache National Wildlife Refuge in New Mexico, a critical stopover for a number of different migrating species.
The best time to visit is mid-November through mid-February, and I usually go to the place in mid-December.I've made it a tradition to go with my father with our cameras, and I look forward to our day trip all year long.I also love our tradition of stopping at Buckhorn Tavern for a famous green chile cheeseburger at the end of a long day in the field.
Most Snow Geese come from Northern Canada, flying up to 1, 500 miles at 40 miles per hour along with their partners and sometimes their young.Sandhill Cranes are much larger, breeding in Canada, Alaska and Siberia.Once almost extinct, they have recovered dramatically because of places like this national wildlife refuge.
Bird photography typically means using a huge lens (镜头) to get close to all the action.The big lens ensures I get those magical moments without disturbing a bird endangered.But I needn't go far to see migrating species.In my own backyard, I use a bird blind, which allows me to sit inside capturing photos of any migrating species flying through.In my own backyard, I also find that not all birds migrate, but they prepare for winter, stocking up seeds and acorns.
So wherever you are, keep your eyes out and up.If you miss the migration this year, soon it'll be warming up and the birds will be on their journeys to their summer homes in the North.
语篇解读:本文是一篇说明文。文章主要讲述了作者的一些观鸟经历与感受。
5.What does Bosque del Apache National Wildlife Refuge mean to the author
A.A scenery spot to have fun.
B.A destination to take photos.
C.A field to catch some birds.
D.A place to watch birds migrate.
解析:细节理解题。根据第一段最后一句可知,博斯克德尔阿帕奇国家野生动物保护区对作者来说是一个观看鸟类迁徙的地方。

6.Where does the author like to go to eat something after the visit
A.To Canada.
B.To Alaska.
C.To Buckhorn Tavern.
D.To the backyard.

解析:细节理解题。根据第二段中的“I also love our tradition of stopping at Buckhorn Tavern for a famous green chile cheeseburger at the end of a long day in the field.”可知,参观结束后作者喜欢去巴克霍恩酒馆吃东西。
7.Why are Sandhill Cranes mentioned in paragraph 3
A.To show the reserves' value.
B.To introduce a kind of birds.
C.To stress the importance of birds.
D.To list some birds' migratory sites.

解析:推理判断题。根据第三段中的“Once almost extinct, they have recovered dramatically because of places like this national wildlife refuge.”可知,在第三段提到沙丘鹤是为了显示保护区的价值。
8.What is paragraph 4 mainly about
A.The habits of some migrating species.
B.The author's knowledge of endangered birds.
C.The skills of taking photos of migrating birds.
D.The author's efforts to watch birds' migration.
解析:段落大意题。综合第四段的内容可知,本段主要描述的是作者观察鸟类迁徙所作出的努力。

Ⅱ.阅读七选五
A major benefit of growing your own tomatoes is variety.If you visit a garden center, you will find seeds and small starter plants for yellow tomatoes, purple tomatoes, huge tomatoes, and even very small tomatoes.
9 .The most important things are to give the plants plenty of water, well-draining soil, heat and light.It is best to grow tomatoes in a place that receives at least six hours of sunlight each day.Removing weeds will keep pests and diseases away while giving the plants enough nutrients to produce fruit.
Tomatoes grow best in soil with a pH level between 6.0 and 6.8.If the pH reading is lower than 6.0, you can add about 2 cups of dolomitic lime (石灰) into the soil for each plant.
If you want to grow really big tomatoes, try following these seven tips from expert growers: Select tomato seeds with names like Big Zac or Bull's Heart. 10 .
Start seeds early indoors and re-plant them into larger containers several times before moving them outdoors. 11 , removing leaves from the bottom one-third of plants and burying stems up to the next set of leaves.This will produce stronger plants.
Remove new flowers that develop at the top of the plant when older fruits near the bottom begin to grow. 12 .Pay close attention! Observe the plants daily for pests and diseases.React quickly to prevent problems.
Remove the small growths where the plant's stems and branches meet.This will prevent them from taking away nutrients and shading developing fruit under them.
13 instead of letting them develop into a shorter, wider shrub (灌木).
Finally, water, fertilize and weed!
A.Plant them deep each time
B.Rich soil benefits the growth
C.Tomatoes are not difficult to grow
D.Skills are demanding in growing tomatoes
E.Cut back the plants to keep only one main branch
F.They are all genetically designed to produce large fruit
G.This will force the plant to produce fewer but larger tomatoes
语篇解读:本文是一篇说明文。文章主要讲述了如何种植西红柿。
9.选C 下文描述了如何种植西红柿,C项“西红柿不难种植”引起下文,符合语境。
10.选F 上文提到,如果想种植出大西红柿,可以选择Big Zac或Bull's Heart这样的西红柿种子,F项“它们的基因设计都是为了结出大的果实”承接上文,符合语境,选项中的“They”指代上文中的“Big Zac or Bull's Heart”。
11.选A 根据空后“removing leaves from the bottom one-third of plants and burying stems up to the next set of leaves”可知,需要把西红柿种得深一些,A项“每次都要把它们种得很深”引起下文,符合语境。
12.选G 上文提到,当底部附近的较老的果实开始生长时,移除植物顶部发育的新花,G项“这将迫使植物生产更少但更大的西红柿”承接上文,描述这样做的原因。
13.选E 根据空后“instead of letting them develop into a shorter, wider shrub (灌木)”可知,E项“修剪植株,只保留一条主枝”符合语境,空处是描述避免让西红柿植株长成更短、更宽的灌木的方法。UNIT 5 课时检测(四) “Developing ideas”的课文习读环节
Ⅰ.阅读理解
A
Animals can move from place to place, but plants cannot.When an animal is under attack, it can run away or fight back.Plants certainly cannot run away, and they lack teeth and claws.But plants can defend themselves by using both physical and chemical means.
Some plants have their own ways to keep animals away.For example, the leaves of the holly plant have sharp spines that discourage grass eating animals.Holly leaves on lower branches have more spines than leaves on upper branches.This is because the lower leaves are easier for most animals to reach.
Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat.Some grasses may contain a sandy material; eating such grasses wears down the animal's teeth.
Many plants also have chemical defenses.Some plants produce chemicals that taste bitter or cause an unpleasant reaction.Some plants may fight against an attack by increasing the production of these chemicals.When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger.This messenger sends to the roots the information to produce more nicotine.The higher levels of nicotine discourage the caterpillar.
Many plants depend on both physical and chemical defenses.A certain plant in China, for instance, has prickly (多刺的) leaves, and each prickle contains poisonous venom (毒液).A single experience with this kind of plant will teach an animal to stay away from it in the future.
1.The holly plant has more spines on the lower leaves because most animals________.
A.are not tall enough
B.like the lower leaves only
C.are not clever enough
D.can get the lower leaves easily
2.To defend themselves, oak trees use________.
A.chemical means B.physical means
C.bitter chemicals D.sandy materials
3.How does tobacco protect itself against an attack from a caterpillar
A.Its leaves fight against the attack by physical means.
B.Its roots send a messenger to discourage the caterpillar.
C.Its roots increase the production of nicotine when it is attacked.
D.Its leaves produce poisonous sand to drive the caterpillar away.
4.What would be the best title for this passage
A.Plants and Animals
B.How Plants Defend Themselves
C.Attacks and Defenses
D.How Animals Eat Plant Leaves
B
It's getting cold and winter is coming.More than 4 billion birds will stream overhead on their migration to warmer grounds down south, where they will feed.One of my favorite places to see this migration in action is Bosque del Apache National Wildlife Refuge in New Mexico, a critical stopover for a number of different migrating species.
The best time to visit is mid November through mid February, and I usually go to the place in mid December.I've made it a tradition to go with my father with our cameras, and I look forward to our day trip all year long.I also love our tradition of stopping at Buckhorn Tavern for a famous green chile cheeseburger at the end of a long day in the field.
Most Snow Geese come from Northern Canada, flying up to 1, 500 miles at 40 miles per hour along with their partners and sometimes their young.Sandhill Cranes are much larger, breeding in Canada, Alaska and Siberia.Once almost extinct, they have recovered dramatically because of places like this national wildlife refuge.
Bird photography typically means using a huge lens (镜头) to get close to all the action.The big lens ensures I get those magical moments without disturbing a bird endangered.But I needn't go far to see migrating species.In my own backyard, I use a bird blind, which allows me to sit inside capturing photos of any migrating species flying through.In my own backyard, I also find that not all birds migrate, but they prepare for winter, stocking up seeds and acorns.
So wherever you are, keep your eyes out and up.If you miss the migration this year, soon it'll be warming up and the birds will be on their journeys to their summer homes in the North.
5.What does Bosque del Apache National Wildlife Refuge mean to the author
A.A scenery spot to have fun.
B.A destination to take photos.
C.A field to catch some birds.
D.A place to watch birds migrate.
6.Where does the author like to go to eat something after the visit
A.To Canada. B.To Alaska.
C.To Buckhorn Tavern. D.To the backyard.
7.Why are Sandhill Cranes mentioned in paragraph 3
A.To show the reserves' value.
B.To introduce a kind of birds.
C.To stress the importance of birds.
D.To list some birds' migratory sites.
8.What is paragraph 4 mainly about
A.The habits of some migrating species.
B.The author's knowledge of endangered birds.
C.The skills of taking photos of migrating birds.
D.The author's efforts to watch birds' migration.
Ⅱ.阅读七选五
A major benefit of growing your own tomatoes is variety.If you visit a garden center, you will find seeds and small starter plants for yellow tomatoes, purple tomatoes, huge tomatoes, and even very small tomatoes.
__9__.The most important things are to give the plants plenty of water, well draining soil, heat and light.It is best to grow tomatoes in a place that receives at least six hours of sunlight each day.Removing weeds will keep pests and diseases away while giving the plants enough nutrients to produce fruit.
Tomatoes grow best in soil with a pH level between 6.0 and 6.8.If the pH reading is lower than 6.0, you can add about 2 cups of dolomitic lime (石灰) into the soil for each plant.
If you want to grow really big tomatoes, try following these seven tips from expert growers: Select tomato seeds with names like Big Zac or Bull's Heart.__10__.
Start seeds early indoors and re plant them into larger containers several times before moving them outdoors.__11__, removing leaves from the bottom one third of plants and burying stems up to the next set of leaves.This will produce stronger plants.
Remove new flowers that develop at the top of the plant when older fruits near the bottom begin to grow.__12__.Pay close attention! Observe the plants daily for pests and diseases.React quickly to prevent problems.
Remove the small growths where the plant's stems and branches meet.This will prevent them from taking away nutrients and shading developing fruit under them.
__13__ instead of letting them develop into a shorter, wider shrub (灌木).
Finally, water, fertilize and weed!
A.Plant them deep each time
B.Rich soil benefits the growth
C.Tomatoes are not difficult to grow
D.Skills are demanding in growing tomatoes
E.Cut back the plants to keep only one main branch
F.They are all genetically designed to produce large fruit
G.This will force the plant to produce fewer but larger tomatoes
UNIT 5 课时检测(四)
Ⅰ.阅读理解
语篇解读:本文是一篇说明文。文章主要介绍了植物是如何保护自己的。  
1.选D 细节理解题。根据第二段最后一句可知,冬青植物下部的叶子上有更多的刺,是因为大多数动物可以很容易地够到下部的叶子,这些刺能阻止食草动物。
2.选B 细节理解题。根据第三段中的“Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat.”可知,橡树使用的是物理上的方法,让树叶变得厚且坚硬,使得动物吃起来很困难。
3.选C 细节理解题。根据第四段中的“When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger.This messenger sends to the roots the information to produce more nicotine.”可知,烟草通过它的根来保护自己免受毛虫的攻击,当它受到攻击时,会产生更多尼古丁。
4.选B 标题归纳题。根据第一段及下文举例可知,文章主要介绍了植物是如何保护自己的。
语篇解读:本文是一篇说明文。文章主要讲述了作者的一些观鸟经历与感受。  
5.选D 细节理解题。根据第一段最后一句可知,博斯克德尔阿帕奇国家野生动物保护区对作者来说是一个观看鸟类迁徙的地方。
6.选C 细节理解题。根据第二段中的“I also love our tradition of stopping at Buckhorn Tavern for a famous green chile cheeseburger at the end of a long day in the field.”可知,参观结束后作者喜欢去巴克霍恩酒馆吃东西。
7.选A 推理判断题。根据第三段中的“Once almost extinct, they have recovered dramatically because of places like this national wildlife refuge.”可知,在第三段提到沙丘鹤是为了显示保护区的价值。
8.选D 段落大意题。综合第四段的内容可知,本段主要描述的是作者观察鸟类迁徙所作出的努力。
Ⅱ.阅读七选五
语篇解读:本文是一篇说明文。文章主要讲述了如何种植西红柿。
9.选C 下文描述了如何种植西红柿,C项“西红柿不难种植”引起下文,符合语境。
10.选F 上文提到,如果想种植出大西红柿,可以选择Big Zac或Bull's Heart这样的西红柿种子,F项“它们的基因设计都是为了结出大的果实”承接上文,符合语境,选项中的“They”指代上文中的“Big Zac or Bull's Heart”。
11.选A 根据空后“removing leaves from the bottom one third of plants and burying stems up to the next set of leaves”可知,需要把西红柿种得深一些,A项“每次都要把它们种得很深”引起下文,符合语境。
12.选G 上文提到,当底部附近的较老的果实开始生长时,移除植物顶部发育的新花,G项“这将迫使植物生产更少但更大的西红柿”承接上文,描述这样做的原因。
13.选E 根据空后“instead of letting them develop into a shorter, wider shrub (灌木)”可知,E项“修剪植株,只保留一条主枝”符合语境,空处是描述避免让西红柿植株长成更短、更宽的灌木的方法。