Unit 2 Using language 课后练
Part I 基础部分
单词拼写
My daughter ________ (告知) me that she was pregnant.
We interviewed a great many candidates but none of them ________ (使印象深刻) us.
He has a number of social ________ (约会) next week.
He tried to sound ________ (漫不经心的), but I knew he was worried.
_________(总的来说), this is a very useful book.
The trip to Paris will be an ________(理想的) opportunity to practise my French.
As far as I am concerned, healthy hobbies are beneficial to our ________(全面的) development.
Korean barbecue features thin slices of beef or ________(猪肉) that cooked and served with rice.
Beyond our expectation, lamb kebab we ordered was ________(有点) expensive.
They believe a ________(基本的) change in the association is the key to all other necessary changes.
单句语法填空
The color and flavor of cuisine mainly depend on the _____(moderate) of ingredients.
We must spare no effort to study, or we will end up _____(do) nothing.
There is no denying there is a close _________(associate) between smog and lung cancer.
As we know, the construction industry consumes large _________(quantity) of energy and resources and creates a huge amount of pollution.
In summary, the results are entirely _________(consist) with our earlier research.
_____(chew) raw onions will make your tears roll down your face.
The activity will start next week and last for a month, _____(aim) to reduce the extra calories we take in and develop a healthy eating habit.
She is ______(fundamental) a good student, but sometimes she is hard to communicate with.
We can keep healthy by eating different _____(category) of fresh foods, especially fruit and vegetables.
Additionally, I'm crazy to learn how to appreciate western paintings, and it can't be better if you can tell us some _____(trick) about how to paint.
选词填空
regardless of, be covered with, warm up, combine... with, cut down, be high in, get rid of, in cash
1. Mr Smith's garden ____________ so many butterflies that I could hardly see the flowers.
2. To learn English well, we must ____________ intensive reading ____________ extensive writing.
3. The Internet makes surveying and voting easy and convenient, ____________time and space.
4. If we fail to sell enough goods, compared with last year, we will have to ____________ production.
5. The best way to ____________ a negative self-image is to realize that your image is far from objective.
6. Make maximum use of the whole fruit, including the pulp which ____________ fibre.
7. The manager insisted on paying ____________ on delivery without allowing any discount.
8. Scientists predict that the world is likely to ____________ over the next few decades.
Part II 提高部分
阅读理解
There's been lots of concern recently about the potential dangers of microwave popcorn(爆米花), but is this concern founded, or just overmuch fear-spreading The answer is that many of the chemicals that caused worry in earlier decades have been removed from microwave popcorn, but some critics still are not satisfied.
"You may consider popcorn to be a low-calorie, high-fiber snack, but microwave popcorn isn't a healthy choice," explains nutrition expert Dan DeFigio. That's because microwave popcorn bags were coated with perfluorinated chemicals(PFCs) to prevent oil substance from leaking out. One particular type of PFC, known as perfluorooctanoic acid(PFOA), has been linked to certain cancers, but the American Cancer Society says the evidence is unsure and more research is being done about this.
Nevertheless, in response to concerns about PFCs, the U.S. Food and Drug Administration(FDA) worked with popcorn makers back in 2011 to remove PFOA from their packaging. Three more PFCs were banned in the next five years. So today's microwave popcorn doesn't have these chemicals, but critics say that the alternatives could cause problems as the old ones, but less is known about them.
That's not the only problem, however. The chemical that for decades lent buttery deliciousness to popcorn has also been connected in rare cases with major lung damage. Known as diacetyl(二乙酰), it's long been a documented problem with workers in popcorn making facilities, but also can be risky for people who just eat the snack a lot. A 2007 study published in the journal Critical Reviews found that more than 80 percent of chemical release happened when the bag was opened post-popping. Although diacetyl has been removed from most products, some critics claim that the alternative to diacetyl is also harmful.
Most of the exposure to diacetyl came from inbreathing rather than eating popcorn. Therefore, experts recommend at least waiting for the bag to cool before you open it to reduce potentially harmful chemical exposure. Better yet, make your own fresh at home with an air popper. If you like to flavor it, add organic butter or some cheese.
1.What can we know about PFOA from the text
A.PFOA has been removed from PFCs.
B.PFOA can stop the leak of nutrition.
C.PFOA in popcorn bags leads to cancer.
D.PFOA doesn't exist in popcorn bags in America currently.
2.According to the text, who are most probably exposed to diacetyl
A.Critics claiming diacetyl is harmful.
B.Workers making popcorn in factories.
C.People making popcorn with an air popper.
D.Consumers eating microwave popcorn occasionally.
3.What does the last paragraph intend to tell us
A.How to flavor popcorn. B.How to make popcorn safer.
C.How to make popcorn at home. D.How to find alternatives to diacetyl.
4.What is the best title of the text
A.Is Popcorn a Healthy Choice
B.Should We Ban Microwave Popcorn
C.Is Microwave Popcorn Really Dangerous
D.Should PFCs Be Removed from Microwave Popcorn
二、七选五
A calorie is a unit of energy. The calories you see on nutrition labels, however, are actually kilocalories. ___1____ One kilocalorie is the amount of energy required to heat 1 kilogram of water by 1 degree Celsius. Calories in our food all come from one of the three nutrients: fat, carbohydrates (碳水化合物) and protein.
In 1990, the US government passed an act(法案), which means that before any packaged food in the US hits the shelves, food scientists have to measure its nutrients and calories. One way to do this is with a tool called a calorimeter(热量计). ____2___ To use this tool, scientists place the food in a sealed container surrounded by water and heat it until the food is completely burned off. Scientists then record the rise in water temperature to determine the number of calories in the product.
___3____ It was developed by the 19th-century US chemist Wilbur Atwater to indirectly estimate of the number of calories in food products. Calorimeters don't take into account that humans lose some calories through heat and feces (排泄物). Atwater's experiments have found that proteins and carbohydrates each have about 4 calories per gram and fats have 9 calories per gram. ___4____
However, some experts say that the Atwater system is outdated and inaccurate. ___5____ Besides, it doesn't take into account the digestive process, but assumes complete change of nutrients to energy.
A. That is the 4-9-4 system.
B. Food scientists also rely on another calculation.
C. These calorie counts aren't incredibly accurate.
D. It was more than likely calculated through the classic Atwater system.
E. This tool directly measures the amount of energy that a certain food contains.
F. Food packaging always refers to kilocalories, even though it just says "calories".
G. They say the energy content of certain foods couldn't be accurately calculated, such as nuts, by the Atwater system.
三、完形填空
Anna was very particular about food. She never ate the wonderful pizzas or ice creams her mother made, which were her parents' 1 . She just ate other things. Anna was 2 , but her parents were both fat. Their likes were her dislikes. 3 , everyone wondered who she had taken after. Anna's parents thought she was ill.
One day, they went to see a doctor. He took them to a machine. Then he put a plate of fish in front of them, and 4 on the machine.
It started playing sounds: waves' 5 sound and the songs of seabirds. After some time the doctor 6 the fish with fruit and vegetables. The sounds of the sea 7 , and there came the sounds of gentle wind, birdsong, and rain. All of them enjoyed the beautiful sounds of nature, but the doctor 8 the plate again. And this time it was a dish of meat. The machine started making lively sounds: the sound of 9 animals. Still quite pleasant. Then the doctor brought a strongly smelling pizza. The machine seemed to 10 down. Instead of beautiful sounds, out came noisy sounds. The noise was so disturbing that the family had to ask the doctor to change the 11 of food. The doctor brought them ice creams, burgers and candy...but they thought the sounds were still 12 . Finally Anna's parents asked the doctor to bring fruit back.
"Anna isn't ill," said the doctor. "She can understand each type of food's own 13 . It comes from where the food was born, raised, and prepared. Anna wants to eat the food whose music is 14 . That's why she's slim and healthy."
These days, they all look slim, 15 from then on, in the house pizzas, burgers, puddings, and ice creams were replaced by fruit, vegetables, and fish.
What did your dinner sound like today
1.A.ideal B.agreement C.favorite D.challenge
2.A.thick B.weak C.clean D.slim
3.A.Suddenly B.Specially C.Sincerely D.Naturally
4.A.depended B.passed C.lived D.turned
5.A.sweet B.relaxing C.strange D.surprising
6.A.compared B.helped C.covered D.replaced
7.A.stopped B.traveled C.began D.continued
8.A.dropped B.washed C.changed D.offered
9.A.farm B.pet C.forest D.sea
10.A.break B.lie C.burn D.sit
11.A.amount B.colour C.type D.quality
12.A.terrible B.beautiful C.serious D.quiet
13.A.character B.music C.habit D.requirement
14.A.wonderful B.heavy C.original D.traditional
15.A.though B.since C.therefore D.if
四、语法填空
Since July 2019, one China's online food-delivery platform ____1____(carry) out a new service of picking up garbage from its users in Shanghai.
The service comes after ___2_____ recently-released regulation on waste management in Shanghai. Individuals ____3____ throw away their garbage without being sorted out can be fined up to 200 yuan, while companies and ____4____ (organize) can face fines up to 50, 000 yuan.
The trash take away service requires residents to sort ____5____ (they) own garbage before it ____6____ (pick) up by workers from the platform, who will ensure the waste is disposed of in the correct garbage bins.
It's obvious that this service is ____7____ (convenience) to the old, especially to the disabled customers. ___8_____, many netizens don't think the platform is providing a wonderful service, saying it just wants ___9_____ (make) money. They think 12 yuan for an order is too much. Besides, many people doubt if these collectors will wash their hands after ____10____ (deal) with the trash.
五、书面表达
假定你是李华, 下周三有一个英国师生访问团将来参观你校开设的茶艺课。请你写一篇英文发言稿欢迎他们的到来并介绍茶艺课, 内容包括: 1.开课目的; 2.学习内容; 3.邀请来宾品茶。
参考词汇: 茶艺课tea art class
注意: 1.词数80左右; 2.可适当增加细节, 以使行文连贯。
Hello, everyone!
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Thanks for your listening.
参考答案
Part I
一、1.informed 2.impressed 3.engagements 4.casual 5.Overall 6.ideal 7.overall
8.pork 9.somewhat 10.fundamental
二、1.moderation 2.doing 3.association 4.quantities 5.consistent 6.Chewing
7.aiming 8.fundamentally 9.categories 10.tricks
三、1. is covered with 2. combine, with 3. regardless of 4. cut down
5. get rid of 6. is high in 7. in cash 8. warm up
Part II
一、1--4. DBBC
二、1--5.FEBAG
三、1--5. CDDDB 6--10. DACAA 11--15. CABAB
四、1.has carried 2. a 3.who/that 4.organizations 5.their
6. is picked 7. convenient 8.However 9. to make 10.dealing
五、答案：
Hello everyone! Welcome to our school! It is a great honor for me to share our tea art class with all of you.
The tea art class is one of the most popular courses among the students in our school. The class aims to help students to learn more about the tea culture, which plays an important role in traditional Chinese culture. In tea art classes, students are taught how to make tea and taste tea. And they also have opportunities to visit the tea garden and see the process of making tea.
I do hope all of you can have a cup of tea. I promise you will be attracted by the taste of tea.
Thanks for your listening.
