He is connected with the Smiths by marriage.
8. dozen
* a set of twelve; twelve
He bought 2 dozen bottles of wine.
How many dozen do you want?
* two ( many, several) dozen pens; half a dozen oranges.
* dozens of; scores of
I have been there dozens of time.
They have lived there for dozens of years.
Step 5 Practice
Part 4. Do the first one with the whole class to check that Ss know what to do. Then let them work through the exercise in pairs, check the answers at the end.
Step 6 Reference
Step 7 Workbook
Lesson 55.
Step 1 Revision
1. Ask the students to read and recite the passage.
2. Ask the students to tell how many different type of satellite there are and what tyey do.
Step 2 Reading
1. Get the students to look at the picture and tell what they can see in the picture.
2. Ask the students to read the passage and answer the following questions:
1) What two things are satellites used for?
2) When was the organization for telephone satellites set for?
3) How many nations are there in this group today?
4) In what other fields of work do satellites play a part?
5) Why is difficult to study space from a research station on the earth?
Step 3 Language points
1. They can tell the difference between healthy plants and plants that are diseased.
* diseased 有病的，病态的
She is diseased in body and mind.
These branches are diseased; we must cut them away from the tree.
* tell the difference between A and B 说出／分清A 和B的区别
Can you tell the difference between these two colors?
Few people can tell the difference between Jim and Jack, as they are twin brothers.
* tell A from B
Some people can’t tell red from green, as there is a fault in their eyes.
The two brothers are so much alike that it is almost impossible to tell one from the other.
We must try to tell the good ones from the bad ones.
2. The problem with looking into space from the earth is that there is a lot of dust in the earth’s air.
* with looking into space from the earth 就…来说
With many of the poor, hunger is a constant problem.
The chief difficulty with these men was that they were old.
* look into 观察,窥视 = try to see in sth.
I looked into the room, but no one was there.
She looked into my eyes for a long time without finding anything wrong.
* look into 调查, 研究 = examine, investigate
Let
www.89xue.com ’s look into the matter together.
The government will look into the living conditions of the workers.
3. The dust air makes it difficult to get a clear picture of space.
* make it + adj./n. + to do
The snowstorm made it hard to continue the trip.
Children should make it rule to wash hands before meals.
I found it helpful to do exercises every morning.
4. Satellites are used to carry out experiments and to send the information back research centers on the earth.
* carry out : complete; give effect to; put into practice 完成; 实现；实行；进行到底；开展；贯彻； 执行；落实
It is often easier to make planes than it is to carry them out.
These orders must be carried out at once.
He carried out his promise to give up smoking.
They are told to carry out the policies of the Party.