外研版（2019）选择性必修第一册Unit 5 Revealing Nature Developing ideas学历案 （无答案）

学历案
选必一 Unit 5 Revealing Nature （第5课时）
Writing an observational journal
自主学习【学】
【课标要求】
本单元的主题语境是“人与自然”，涉及的主题语境内容是认识与探索自然。
2. 围绕主题语境提供的语篇类型是水仙花生长的观察日志。
【学习目标】
能够通过观察日志，了解水仙花的生长过程，梳理日志中的主要信息。
能够进行知识和思维的迁移，完成一篇草莓生长观察日志。
【自学评价】
重点词组
an observational journal __________
side by side _____________
sprout from the bulb ___________
face up _____________
produce a single flower ____________
师生研学【研】
【学习过程】
Step 1 Reading
Read the observational journal and answer the questions. (P59 ctivity5)
1. How were the daffodil bulbs planted
2. In what environment did the leaves grow
3. What do the flowers look like
Step 2 Pre-writing
Look at the pictures and talk about how the sunflower grows. (P59 Activity6 )
Step 3 While-writing
假定你是李华,你的英语老师要求同学们写一篇英语观察日记,介绍草莓的生长过程。内容包括:
1.幼苗(seedling)植入土壤;
2.两周后:幼苗叶子变大,呈伞状;
3.一个月后:长出花苞(bud);
4.两个月后:雌蕊(pistil)变成草莓,约5天后,草莓成熟(mature)。
注意:
1.词数100左右;
2.可以适当增加细节,以使行文连贯。
教你审题
体裁 观察日记
人称 第三人称
时态 一般现在时
框架 第一段引出话题,整体介绍草莓这种植物框架 第二段具体介绍草莓的生长过程 第三段进行总结
教你造句
1.草莓是许多人最喜欢的水果,有些人甚至想尝试自己种植草莓。
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2.幼苗种在土壤里两周。(现在完成时的被动语态)
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3.幼苗的叶片逐渐长成较大的伞形叶片。
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4.两个月后,雌蕊长成真正的草莓。
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5.亲自观看草莓的生长过程不是很有趣吗
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牛刀小试
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Step 4 After-writing
Work in pairs. Make improvements to each other’s introductions and share them with the class.
A possible version:
Strawberries are many people's favourite fruit and some people even want to try growing strawberries by themselves. Actually, the growth process of them is pretty long. Here is my observation of them.
The leaves of the seedlings gradually grow into larger umbrella-shaped leaves after they have been planted in the soil for two weeks. One month later, small buds begin to appear. The following process is a little longer. It takes about two months for the pistils to grow into real strawberries. And five days later, we can enjoy fresh mature strawberries.
Isn’t it interesting to watch the growth process of strawberries in person
训练提升【练】
【课后检测】
一、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。
Easy, Tasty Things to Grow in Your Fall Garden
Everything seems possible in the spring and early summer garden. ___1__The fall can be a fertile time, not just for harvesting long-awaited late-season tomatoes, eggplants and cucumbers. Try starting these fall garden plants now to recapture that delicious sense of possibility.
Greens
___2___ Think of those crisp early fall days as a repeat of the spring lettuce season. Sow seeds and pick young leaves to keep your lettuce growing until a hard frost puts a pause on salad days. Dark greens like kale and chard will continue to grow deep into the fall as well.
Carrots
___3___Try to plant a fall crop of carrots at least eight weeks before that. Carrots are one of those vegetables that love a little cold. So the frost can help them set their sweetness and earthy flavor. Usually, carrot seeds are tiny. ___4___ When the seedlings peek above the ground, thin them to make them less crowded.
Garlic
Garlic is a bulb, just like tulips or daffodils. Plant individual garlic cloves (one organic bulb from the grocery store will get you 7—8 plants) in the mid-fall. Then cover them with one inch of soil and a nice thick layer of mulch on top. Your garlic may grow out this year. ___5___
What do you harvest from your fall vegetable garden
A．Find out when your area’s first expected frost is.
B．Carrots are not only delicious but also nutritious.
C．Spring seems the best season for every plant to grow.
D．You’d better sow multiple seeds in loose soil six to eight inches apart.
E．But what if we could continue to grow food right up until that cold arrives
F．However, the real prize will be waiting for you when things warm up next year.
G．Lettuce is a most satisfying garden plant because it’s so easy to grow quickly from seed.
二、语法填空
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Scientists have found that, over the last couple of decades, Greenland is melting (融化) ____1____ (fast) than it has in at least 350 years, which results ____2____ water pouring into the sea and contributes to sea level rise.
“What’s important ____3____ (know) is that all the big melt years have happened in the last two decades or so,” said Will, ____4____ researches ice sheets and oceans at NASA’ Jet Propulsion Laboratory. “That’s because the melt in Greenland is getting more extreme every decade due to human interference (干预) with the climate, like air ____5____ (pollute).” Willis and his team were ____6____ (surprise) by Greenland’s current melt.
As the climate warms and heat waves become increasingly extreme, major melting events are even happening at the ____7____ (island) typically cold summit (山顶). This summer, a couple of ____8____ (seriously) heat waves hit Greenland, noted Ted Scambos, an ice sheet expert at the University of Boulder Colorado. ____9____ even rained atop Greenland, at 10,551 feet. Scientists had never observed rain there before.
Before 1995, centuries would go by between major melt events at the summit, explained Scambos, referring to evidence from cores of ancient Greenland ice. Now, it _____10_____ (occur) a handful of times in recent decades.
【布置作业】
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师生总结【结】