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(共25张PPT)
Unit 3 I’m more outgoing than my sister.
Grammar in Context
Doing Things Differently
Travel to any country in the world, and you will discover something. The country is similar to your own in some ways, and different in others. Each country has its own unique ways of doing things. That is certainly true for the United States. Some of these things may surprise you.
For example, Americans use ounces, feet, and Fahrenheit to measure. But most other countries of the world use the metric system of grams, meters, and Celsius.
Food portions in the United States are usually much larger than in other parts of the world. Researchers found that the average size of a meal in a restaurant in Paris is 25 percent smaller than the size of a meal in a restaurant in Philadelphia. The serving sizes in stores are larger in Philadelphia, too. Sodas are 52 percent bigger, and yogurt servings are 82 percent bigger!
American money looks different from money in most other countries. The green, white, and black design of American bills is plainer and less interesting than the colorful bills of other countries.
In most countries, sales tax is included in the price of items. In the U.S., the price tag doesn't include the tax. Visitors to the U.S. often don't know this. They are surprised that items are more expensive than the price on the tag.
But it's not just food, measurements, and money that are different in the United States. Americans may act differently, too. For example, Americans often make small talk with strangers. Because of this, some people think Americans are friendlier than people in other countries. However, many people say that Americans talk louder and laugh more frequently. This makes them think that Americans are ruder than people from other countries!
Do these differences make the United States better or worse than other countries No, they don't. They just give the United States its own unique personality.
Based on the reading, write T for true or F for false.
comprehension
1. ____Restaurants in the United States serve a lot of food to
their customers.
2. ____Americans often seem friendly because they make a lot
of small talk.
3. ____The United States uses Celsius to measure temperature.
T
T
F
think about it
Discuss the questions with a partner or in a small group.
1. Why do you think the United States does not use the metric
system
2. Why do you think serving sizes of food are so much bigger
in the U.S. than in other places
using comparatives
Examples Explanation
U.S. money is plainer than European money.
Is Celsius more common than Fahrenheit
It's better to use the metric system than other forms of measurement.
When making a comparison between two items, we use than before the second item.
People from other countries don't make a lot of small talk. Americans seem friendlier.
We don't use than when the second item of comparison is understood.
We can use much or a little before a comparative form.
In other countries, there is less laughter in the streets.
In other countries, you may see fewer smiles.
The opposite of more is less or fewer. (Remember we use less with noncount nouns and fewer with count nouns.)
Denali is much taller than Mount Everest.
In the U.S., prices are a little more expensive than the amount on the tag.
grammar in use
In speaking, when we compare two people we usually use object pronouns after than.
You walk faster than me.
He is friendlier than her.
In formal situations, we use the subject pronoun followed by an auxiliary verb after than.
You walk faster than I do.
He is friendlier than she is.
exercises
Fill in the blanks with the comparative form of the words given. Add than.
1. The top of Mount Everest is ________ (high) above sea level
______ Denali.
2. Climbing Mount Everest is _______________ (difficult)
climbing Denali.
3. Bradford Washburn was four years __________ (old) his
wife, Babara.
4. The air in the mountain is ______________ (thin) the air at
sea level.
higher
than
more difficult than
older than
thinner than
5. European money is ___________________ (colorful) U.S money.
6. Many people are surprised when items are __________________
(expensive) the amount on the price tag.
7. The American way of doing things is not _____________ (bad)
the ways other countries doing things.
8. Boots dry _____________ (slow) shoes.
9. Mount Everest is ________ (far) from the North Pole _______
Denali.
more colorful than
more expensive than
worse than
slower than
further
than
Look at the information in the chart. Then fill in the blanks to make comparisons between Chicago, Illinois, San Francisco and California. Use the words in the box and than.
bad big cheap cool expensive larger high pleasant wealthy
1. The population of Chicago is larger than the population of San
Francisco.
2. San Franciscans are____________ Chicagoans. The average
income is higher in San Francisco.
3. In area, Chicago is ___________ San Francisco.
4. Homes in San Francisco are __________________ homes in
Chicago.
wealthier than
bigger than
more expensive than
5. A two-bedroom apartment in Chicago is___________ a
two-bedroom apartment in San Francisco.
6. For people who don't like snow, winters in Chicago are
____________ winters in San Francisco.
7. San Francisco is ___________ Chicago in the summer.
8. For people who don't like cold weather, winters in San Francisco
are ________________ winters in Chicago.
9. There is a _______ percentage of older people in San Francisco
than in Chicago.
cheaper than
worse than
cooler than
more pleansant than
higher
ABOUT You : Write sentences comparing your city to San Francisco or Chicago.Use the comparative form of the words given. Share your answers with a partner.
1. small_____________________________________________
2. crowded __________________________________________
3. cold______________________________________________
4. interesting _________________________________________
5. noisy______________________________________________
6. modern ____________________________________________
7. sunny______________________________________________
8. beautiful____________________________________________
9. pleasant____________________________________________
10. old_______________________________________________
11. amazing __________________________________________
12. confusing _________________________________________
13. expensive__________________________________________
word order with comparatives
Examples Explanation
Houses in San Francisco are more expensive than houses in Chicago.
We put comparative adjectives after the verb be.
San Francisco has more sunshine than Chicago.
San Francisco has less rain than Chicago.
We put more, less, fewer, better,worse,and other
comparative adjectives
before the noun.
The Asian population is growing more quickly than the Latino population.
We put comparative adverbs after the verb.
It rains less in San Francisco than in Chicago.
Look at the information in the chart. Then fill in the blanks to make comparisons between Miami,Florida, and Los Angeles,
California. Use the words given and the comparative form.
1. The trip to work takes _______ (long) for people in Los Angeles
than for people in Miami.
2. In January and July, the weather in Miami is ______ (hot) than
the weather in Los Angeles.
3. It is much __________ (rainy) in Miami than in Los Angeles.
4. It is _____________ (expensive) to rent a two-bedroom
apartment in Miami than in Los Angeles.
longer
hotter
more rainy
less expensive
5. In Miami the average household is _______ (small) than in
Los Angeles.
6. People in Los Angeles have a ______ (high) median income than
people in Miami.
7. There are ___________ (people) in Los Angeles than in Miami.
8. The population is ______________ (growing fast) in Miami
than in Los Angeles.
smaller
higher
more people
growing faster
ABOUT You: Compare the city you live in now to another city you know. Use comparative adjectives and the words given. Share your answers with a partner.
1. public transportation __________________________________
2.factories ____________________________________________
3. crowded ____________________________________________
4. clean _______________________________________________
5. tall buildings ________________________________________
6. snow ______________________________________________
7.sunny ______________________________________________
8. traffic _____________________________________________
9. beautiful ___________________________________________
10. job opportunities ____________________________________Doing Things Differently
Travel to any country in the world, and you will discover something. The country is similar to your own in some ways, and different in others. Each country has its own unique ways of doing things. That is certainly true for the United States. Some of these things may surprise you.
For example, Americans use ounces（盎司）, feet（英尺）, and Fahrenheit（华氏度） to measure. But most other countries of the world use the metric system of grams, meters, and Celsius（摄氏度）.
Food portions in the United States are usually much larger than in other parts of the world. Researchers found that the average size of a meal in a restaurant in Paris is 25 percent smaller than the size of a meal in a
restaurant in Philadelphia（费城）. The serving sizes in stores are larger in Philadelphia, too. Sodas are 52 percent bigger, and yogurt servings are 82 percent bigger!
American money looks different from money in most other countries. The green, white, and black design of American bills is plainer and less interesting than the colorful bills of other countries.
In most countries, sales tax is included in the price of items. In the U.S., the price tag doesn't include the tax. Visitors to the U.S. often don't know this. They are surprised that items are more expensive than the price on the tag.
But it's not just food, measurements, and money that are different in the
United States. Americans may act differently, too. For example, Americans often make small talk with strangers. Because of this, some
people think Americans are friendlier than people in other countries. However, many people say that Americans talk louder and laugh more frequently. This makes them think that Americans are ruder than people from other countries!
Do these differences make the United States better or worse than other countries No, they don't. They just give the United States its own unique personality.
metric system: "Metric system"（公制系统）是一种国际通用的度量衡系统，用于测量物体的长度、质量、容量和温度等物理量。这个系统最早起源于法国，现在已被广泛采用，几乎在全球范围内都是主要的度量衡系统。公制系统中一些常见的单位有：米（meter）、厘米（centimeter）、毫米（millimeter）千米（kilometer）千克（kilogram）、克（gram）、升（litre）、摄氏度（Celsius）。
small talk: friendly conversation about unimportant subjects
Exercises
Fill in the blanks with the comparative form of the words given. Add than.
The top of Mount Everest is ________ (high) above sea level ______
Denali.
Climbing Mount Everest is _______________ (difficult) climbing Denali.
Bradford Washburn was four years _____________ (old) his wife, Babara.
The air in the mountain is ______________ (thin) the air at sea level.
European money is ___________________ (colorful) U.S money.
Many people are surprised when items are _________________ the amount on the price tag.
The American way of doing things is not _____________ (bad) the ways other countries doing things.
Boots dry _____________ (slow) shoes.
Mount Everest is ________ (far) from the North Pole _______ Denali.
Look at the information in the chart. Then fill in the blanks to make comparisons between Chicago, Illinois, San Francisco and California. Use the words in the box and than.
bad big cheap cool expensive larger high pleasant wealthy
The population of Chicago is larger than the population of San Francisco.
San Franciscans are____________ Chicagoans（芝加哥居民）. The average income is higher in San Francisco.
In area, Chicago is ___________ San Francisco.
Homes in San Francisco are ___________ homes in Chicago.
A two-bedroom apartment in Chicago is___________ a two-bedroom
apartment in San Francisco.
For people who don't like snow,winters in Chicago are ____________
winters in San Francisco.
San Francisco is ___________________ Chicago in the summer.
For people who don't like cold weather, winters in San Francisco are
______________ winters in Chicago.
There is a _______________ percentage of older people in San Francisco than in Chicago.
ABOUT You : Write sentences comparing your city to San Francisco or Chicago.Use the comparative form of the words given. Share your answers with a partner.
1. small___________________________________________________
2. crowded ________________________________________________
3. cold____________________________________________________
4. interesting _______________________________________________
5. noisy___________________________________________________
6. modern _________________________________________________
7. sunny___________________________________________________
8. beautiful_________________________________________________
9. pleasant__________________________________________________
10. old___________________________________________________
11. amazing ______________________________________________
12. confusing _____________________________________________
13. expensive______________________________________________
Look at the information in the chart. Then fill in the blanks to make comparisons between Miami,Florida, and Los Angeles, California. Use the words given and the comparative form.
The trip to work takes ________________ (long) for people in Los Angeles than for people in Miami.
In January and July, the weather in Miami is ________________ (hot)
than the weather in Los Angeles.
It is much _________________ (rainy) in Miami than in Los Angeles.
It is __________________ (expensive) to rent a two-bedroom apartment in Miami than in Los Angeles.
In Miami the average household is ______________________ (small)
than in Los Angeles.
People in Los Angeles have a________________ (high) median income than people in Miami.
There are ________________ (people) in Los Angeles than in Miami.
The population is______________ (growing / fast) in Miami than in Los Angeles.
ABOUT You: Compare the city you live in now to another city you know. Use comparative adjectives and the words given. Share your answers with a partner.
1. public transportation ________________________________________
2.factories __________________________________________________
3. crowded _________________________________________________
4. clean ____________________________________________________
5. tall buildings ______________________________________________
6. snow ____________________________________________________
7.sunny ____________________________________________________
8. traffic ___________________________________________________
9. beautiful _________________________________________________
10. job opportunities _________________________________________

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