4． Dictate the following words: clean up, cheer up, give out, put off, set up, run out of, take af——青夏教育精英家教网—

4． Dictate the following words: clean up, cheer up, give out, put off, set up, run out of, take after, fix up, give away, call up, hand out, work out, hunger, establish, commitment, veterinarian, strategy Step Ⅱ 1a This activity introduces new vocabulary which can be used to narrate past events． First write by the time on the blackboard． and tell the class the meaning of it． "by the time" means not later than, before, as soon as, or when the indicated comes． When we use the words． "By the time-, "we are talking about two different things that happened in the past． Say this sentence to the class: By the time the teacher came in, the students had begun reading English． Tell them to note the struture "had begun" in this sentence． Begun is the past participle of begin． When we talk about two events both happened in the past, the one which happened earlier should use and plus a past participle． The words following By the time-, talk about the thing that happened later． And tell the students when they use had plus a past participle, they are using the Past Perfect Tense． Also explain what is the past participle form of a verb for the students． Tell them it is as the same as the past form for a regular verb． And they have to remember the irregular verbs’ participles one by one． Play a game to help the students understand the sentences with the words By the time-Do it like this: Pretend that the teacher will leave the classroom and the students will do some things． When the teacher returns． the class will make statements starting with By the time- Write By the time I came back-on the blackboard． Say to the class, By the time I came in． what had happened? Help one student to answer like this, By the time the teacher came in, Don had written his name on the blackboard． Then get more students to answer differently, such as, By the lime the teacher came in, we had discussed an English problem． By the time the teacher came in, I had drawn a picture． Write these sentences on the blackboard, and teach the students to read several times． Read the instructions to the students and read these questions to the class as well． What do you usually do in, the morning before school? Do you like morning? Why or why not? Choose one good student to answer them by saying something he or she usually does in the morning． He or she may answer like this, I usually get up early, wash my face and have breakfast． I like mornings because the air is fresh, or I usually get up as late as possible． Then I have to wash my face and have breakfast in a hurry． I often rush to school without breakfast． Sometimes I forget something at home． I don’t like mornings because I am always too busy． Then have the whole class practice in pairs． Ask each other the questions． After they finish talking, ask one or two pairs to say their conversations to the class． Correct the mistakes they may make with the other students． Call the students’ attention to the pictures in Activity la． Ask students to tell what they see． Say, Any sentences which make sense are accepted to describe the pictures． The girl in the pictures is Tina． Present the new words by providing sentences showing the meanings of them like this: T: What can you see in Picture 1? S1: She slept a long time． T: That’s correct． She slept too late． She overslept． Class repeat． She overslept． Ss: She overslept． T: What do you see in Picture 2? S2: Her brother or sister is in the bathroom． T: That’s correct． She wants to go into the bathroom． She can’t because someone is taking a shower． Class repeat． Someone is taking a shower． Ss: Someone is taking a shower． Write these words on the blackboard: overslept, taking a shower, had left, left her backpack at home． Then tell students to talk about the pictures in groups of four． Move around the classroom, listening to students and offering help． Make sure that they talk in English． After they all finish talking, ask different groups to tell the class about the pictures． They may say like this: Tina overslept in the morning． She wanted to go to the bathroom, but her brother had already gotten in the shower． When she got to the bus stop, the bus had already left． She had to run to school． After she got to school, she realized she had left her backpack at home． The sentences can vary, but should be correct． Step Ⅲ 1b This activity gives students practice in understanding the target language in spoken conversation． Ask the students to read the instructions together． Have them look at the two columns, A and B ,in the chart． Point out the sample answer． Read the two parts of the sentence． Then go over the other unconnected parts of sentences, too． You will connect the two parts of the sentences, connect a sentence beginning in the first column with the end of that sentence in the second column． Please guess the other two sentences before I play the tape． I guess most of the children can get the correct sentences by guessing． So just let them guess． Don’t tell them whether their answers are right or wrong． OK, just keep your answers by guessing． Let’s decide if they are right by listening to the tape now． Play the recording for the first time． Students only listen． Then play it a second time． Let students match two parts of each sentence． Check the answers by asking some students to tell their answers． Make sure that all of them have got the correct answers by listening． Say congratulations to the students who get the answers correctly by guessing． Answers 【查看更多】

Sugar—free beets（甜菜）that still taste sweet, tastier tomatoes and brighter-colored fruits and vegetables that stay ripe（熟的）longer are all foods that are being grown now. How can they

carry traits, such as being tastier, brighter, and riper? They are genetically engineered.

Genetic engineering（基因工程）is like making a change in a recipe. For example, when you make cakes, you mix together all of the usual ingredients. If you add an extra ingredient, like salt, the cakes will taste differently.

Genes are ingredients in the recipe for life. They carry the traits of living things. Your genes dictate what color hair and eyes you’ll have, how tall you’ll be, as well as many other traits. Genes carry traits for plants, too. By adding genes to a plant, you can sometimes create new traits. For example, adding a certain gene to a potato plant can make the potato plant distasteful to bugs（虫子）. This makes some farmers happy because they don’t have to use chemicals to keep bugs away from their plants.

It sounds great, but some people are opposed to the idea of food that is genetically engineered. Ronnie Cummins, from the Campaign for Food Safety, is against it. He says that one of the major concerns is allergies（过敏）. Supermarkets don’t always label foods that are genetically engineered. A customer could unknowingly buy food that has an added gene from another plant that he or she is allergic to. It could be dangerous.

Gary Burton from Monsanto, a seed（种子）company that engineers food, disagrees. He says his company tests for allergies. Burton believes that genetic engineering is a valuable tool for making better food. The technology can help farmers use less insecticide（杀虫剂）and grow healthier crops. Burton thinks there are many advantages.

But Cummins says that we just don’t know what will happen in the future if we keep adding genes to foods. We could mistakenly create a monster.

People have different opinions about genetic engineering. One side supports it and thinks it will only help us. The other side is opposed to playing with nature and fears health risks. Which side do you think is right?

1.What could be a good thing about food that is genetically engineered?

A．It’s more expensive.

B．It could taste different.

C．It requires less insecticide.

D．It’s not labeled in the supermarket.

2.In general, who does not support the idea of genetic food?

A．People from seed companies.

B．Farmers who use engineered seeds.

C．People from the Campaign for Food Safety.

D．Scientists who create genetically engineered food.

3.It can be inferred that .

A．growing genetic foods will make farmers richer

B．people will eat more genetic foods in the future

C．using fewer chemicals could make the food tastier

D．there could be unknown dangers about genetic foods

4.What is the best title of this passage?

A．Future Farming

B．Genetic Engineering

C．Foods with a Difference

D．Genetically Engineered Fruits

查看答案和解析>>

Sugar—free beets（甜菜）that still taste sweet, tastier tomatoes and brighter-colored fruits and vegetables that stay ripe（熟的）longer are all foods that are being grown now. How can they
carry traits, such as being tastier, brighter, and riper? They are genetically engineered.
Genetic engineering（基因工程）is like making a change in a recipe. For example, when you make cakes, you mix together all of the usual ingredients. If you add an extra ingredient, like salt, the cakes will taste differently.
Genes are ingredients in the recipe for life. They carry the traits of living things. Your genes dictate what color hair and eyes you’ll have, how tall you’ll be, as well as many other traits. Genes carry traits for plants, too. By adding genes to a plant, you can sometimes create new traits. For example, adding a certain gene to a potato plant can make the potato plant distasteful to bugs（虫子）. This makes some farmers happy because they don’t have to use chemicals to keep bugs away from their plants.
It sounds great, but some people are opposed to the idea of food that is genetically engineered. Ronnie Cummins, from the Campaign for Food Safety, is against it. He says that one of the major concerns is allergies（过敏）. Supermarkets don’t always label foods that are genetically engineered. A customer could unknowingly buy food that has an added gene from another plant that he or she is allergic to. It could be dangerous.
Gary Burton from Monsanto, a seed（种子）company that engineers food, disagrees. He says his company tests for allergies. Burton believes that genetic engineering is a valuable tool for making better food. The technology can help farmers use less insecticide（杀虫剂）and grow healthier crops. Burton thinks there are many advantages.
But Cummins says that we just don’t know what will happen in the future if we keep adding genes to foods. We could mistakenly create a monster.
People have different opinions about genetic engineering. One side supports it and thinks it will only help us. The other side is opposed to playing with nature and fears health risks. Which side do you think is right?
【小题1】What could be a good thing about food that is genetically engineered?

A．It’s more expensive.

B．It could taste different.

C．It requires less insecticide.

D．It’s not labeled in the supermarket.

【小题2】In general, who does not support the idea of genetic food?

A．People from seed companies.

B．Farmers who use engineered seeds.

C．People from the Campaign for Food Safety.

D．Scientists who create genetically engineered food.

【小题3】It can be inferred that .

A．growing genetic foods will make farmers richer

B．people will eat more genetic foods in the future

C．using fewer chemicals could make the food tastier

D．there could be unknown dangers about genetic foods

【小题4】What is the best title of this passage?

A．Future Farming

B．Genetic Engineering

C．Foods with a Difference

D．Genetically Engineered Fruits

查看答案和解析>>

阅读理解

　　Every morning in our class．Mr Smith calls the roll(点名)． He calls the names of all the students，one after another，in alphabetical order(按字母表顺序)．For example，he says,“John White．”“Present．”“Helen Williams”“Here．”“Henry Williams”“Henry's

absent today．” “Oh．yes．Henry's your brother．Where's Henry today?”

　　“He's at home，sir．”

　　“He is sick．I suppose．”

　　“Yes，sir．He has a bad cold．”

　　“I hope he feels better tomorrow．”

“Thank you，sir．”

　　“Well, let's begin the lesson．Today we have Lesson 19． First，let's open our books．

　　What's the page number?”

　　“Page 19，sir．”

　　“Thank you．First let's read a few lines aloud for pronunciation．And later, we can

have some dictation(听写)．John，you go to the blackboard and write on the blackboard

while the others write at their desks．You all like dictation，don’t you?”

　　“NO．I like reading stories and translating(翻译) them，”John says．“But dictation

is important．It teaches you the correct spelling of words and it also helps with pronunciation．”

　　“Last time，I made twenty-five mistakes in spelling．”says John.

　　“But how many words did I dictate?”

　　“Twenty-six．”

(1)

(根据所给的意思从短文中找出该词)being here or at the place(7 letters)

(2)

(根据所给的意思从短文中找出该词)away；not present(6 letters)

(3)

(根据所给的意思从短文中找出该词)take as likely，consider as true or probable(7 letters)

(4)

(根据所给的意思从短文中找出该词)a piece of black wood for writing or drawing on with chalk(10 letters)

(5)

(根据所给的意思从短文中找出该词)something done wrongly(7 letters)

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用所给词的适当形式填空。

“Let's have a ________(dictate)tomorrow．”the teacher says．