题目内容

一Would you mind going to the park with us this Sunday?

一 . I haven't been outdoors these days. I can't wait!

A.Sorry, I can't B.Sure, I'd love to

C.Certainly not D.My pleasure

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I’m not sure where _________ to take a vacation.

A.go B.to go C.going

—Jack always keeps on working for a long time without a break.

—Too bad! We should give more attention to proper exercise and enough sleep. ________, health comes first.

A.After all B.At last C.For example D.At first

Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一词）：

Chinese people are used to thinking the numbers 6, 8 and 9 are lucky ones, but how about 142857? This number seems common, but it is the most amazing number in the w1.. Why? Let’s look at a few facts about this number.

First, get the number multiplied by 1 to 6 and all the results are amazing b2. they are made up of the same numbers but in different orders. For example, 142857 multiplied by 2 is 285714 while 142857 multiplied by 6 is 857142. S3., if it is multiplied by 7 and we get a more amazing number 99999. Third, the number is multiplied by i4. and we can get a super large number 20408122449. However, when we a5. the front five numbers to the back six numbers, we get the same number 142857 again. Is it amazing?

In fact, people found this mysterious（神秘的）number inside the pyramids（金字塔）of Egypt. People also discovered the number is linked to seven days of a week. So you see, nature is r6. amazing. And we can learn a lot from it.

Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion. There are many people to feed. We need more and more food.

One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic (遗传的) material. Foods from plants grown in this way are called genetically modified (转基因的) foods, or GM foods.

By changing the genetic material of a plant, it is possible to make new plants. Scientists make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice will be grown, for example, which stops people becoming blind.

Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.

GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them because they are unnatural. They may feed people, then hurt them or their children later. But both rich and poor countries are interested in their uses, and they are not going to go away. In 2050, we may think differently about them.

1.There may be billion people by the year 2050 on the earth.

A.6.4 B.12.5 C.18.5 D.20.5

2.How have scientists been able to change plants more quickly?

A.By making the best plants. B.By asking the farmers to grow plants.

C.By changing planting environment. D.By changing their genetic material.

3.Why do rich countries produce GM foods?

A.Because they are easy to grow and bring in more money.

B.Because they are easy to grow and very cheap.

C.Because they help produce more food.

D.Because they are the best plants.

4.Which of the following is NOT true according to the passage?

A.GM plants are not natural.

B.GM plants are strong against plant diseases.

C.Everyone knows how good or bad GM plants are.

D.GM foods may hurt people or their children later.

5.What can we learn from the passage?

A.GM foods will go away one day in the future.

B.GM foods will not go away in the future.

C.People will not be interested in GM foods.

D.People will have to stop eating GM foods.

As the story ________, the secret of the castle is discovered littleby little.

A.ends B.begins C.develops D.happens

Emily is glad that she ____ for her honesty at that meeting.

A.praises B.praised C.is praised D.was praised

He told me a real story which happened ________ him.

A.for B.to C.in D.of

句型转换

1.He accepted my invitation. (变为一般疑问句)

________ ________ ________ your invitation?

2.Ask him to hang up. (变为否定祈使句)

________ ________ him to hang up.

3.Is he a Russian？(变为复数)

________ ________ ________？

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