I don't know why he is about to make a _______ over a few pounds.

A.wasn't he

B.didn't he

C.did he

D.had he

A.stop

B.quit

C.pause

D.quilt

A.which

B.while

C.whereupon

D.that

Read the following passage and the statements that follow. Choose the best answer for each statement from the three choices marked A, B and C .

Outdoor Learning Environment

“How do they get the tomato on the vine(藤、蔓)？”

The question shocked Hillis. It reminded him of the time five years ago when he was volunteering at Beattie Elementary School in his daughter’s kindergarten classroom. He’d been reading the children a book about gardening.

“These kids had only seen vegetables in supermarkets,” he says. “I felt that something important was missing in their lives.”

So he went to work. Hillis and his wife, Sally, made the local government believe that it was necessary to create an outdoor learning environment. He and other volunteers raised more than 30,000 dollars to make such a project. The project was designed like the Platte River. Like the river, the school’s front walkway turns east to west, so they planted things along the walkway, such as native grasses which can be found along the river too.

Today, students are greeted every day by the cedar-mulched creation(雪松覆盖的表面), which spreads the length of three city blocks. In the back, there’s a garden, with twenty 1 ton rocks lying in the ground, where teachers hold classes.

The outdoor effort has changed things inside, too. For science, children plant seeds and, based upon each seed’s size and weight, guess how large a vegetable will grow to become. For arts and crafts, they collect fallen leaves and make designs out of them. Other science lessons make up a large part of the outdoor learning process. “No matter what time of the year it is,” Hillis says, “there’s always something going on.”

1.Hillis was a volunteer at Beatte Elementary School five years ago().

A.Right

B.Wrong

C.Doesn’t say

2.Halloween was first celebrated by the()around the fifth century.

A.English

B.American

C.Irish

D.European

3. The purpose of this course is to make the students know various rules of English grammar().

A.True

B.False

C.Not Mentioned

4.Students can tell how large a tomato will grow to become according to the seed’s size().

A.Right

B.Wrong

C.Doesn’t say

5.Craftsmen need knives and gravers of various types to make complicated patterns().

A.Right

B.Wrong

C.Doesn’t say

6. Which of the following doesn’t belong to the western culture()？

A.Europe

B.North Africa

C.Asia

D.America

7. What is the author’s main idea in the text()？

A.Education can be purchased

B.The difference between education and schooling

C.Degree is worthless

D.Students should learn more important knowledge

8. The settlers also taught the Indians to penetrate the forest, to hunt large animals().

A.True

B.False

C.Not Mentioned

9.The passage is mainly about().

A.parts of the brain that store information

B.illness that results in serious memory loss

C.how human brains process, store and recall information

D.how to improve our memory

10.What do you think “ginseng and gingko” probably are()？

A.Plants

B.Animals

C.Food

D.Drinks

11.Halloween happened().

A.from October 31st to November 1st

B.on October 31st

C.on November 1st

D.between October 31st and November 1st

12. How many cultural differences does the author mention in the text()？

A.One

B.Two

C.Three

D.Four

A.intent

B.indication

C.temptation

D.desire

Directions：Read the following passage and the statements that follow. Choose the best answer for each statement from the four choices marked A, B，C and D.

The Internet is an exciting tool that puts vast information at your fingertips. With a click of a mouse, it lets you buy an airline ticket, book a hotel, send flowers to a friend, or purchase your favorite stock.

Security on the Internet

Shopping online offers lots of benefits that you won’t find while shopping in a store or by mail. The Internet is always open—seven days a week, 24 hours a day—and bargains can be numerous online. Shopping on the Internet is no less safe than shopping in a store or by mail. Keep the following tips in mind to help ensure that your online shopping experience is a safe one.

EASY AS ABC

When exploring online, think ABC to remember the privacy and security questions you should ask about a company.

About me. What information does the company collect from me and is it secure？

Benefits. How does the company use that information and what is the benefit to me？

Choices. What choices do I have about the company’s use of information about me？ Can I choose not to have the information used for other purposes, and how？

1.The real meaning behind “with the click of a mouse” may be ().

A.with the use of computer and internet

B.just the action of clicking the mouse

C.with the information

D.none of the above

2.Which of the following is the most efficient way to reduce age related memory loss()？

A.Eating more meat and doing more exercises.

B.Eating right foods and getting sufficient amounts of sleep

C.Taking more medicine and doing more exercises

D.Taking more herbs and eating more food

3.Most of his savings()in the Xin Hua Bank.

A.has been kept

B.is being kept

C.have kept

D.have been kept

4.By “permissive period in education” the author means a time().

A.when children are allowed to do what they wish to

B.when everything can be taught at school

C.when every child can be educated

D.when children are permitted to receive education

5.Jogging is the best way for stretching and relaxation and helps to reduce many diseases().

A.True

B.False

C.Not Mentioned

6.What is this passage mainly about()？

A.Shopping online safely

B.Differences between shopping online and in the store

C.Internet is convenient

D.Benefits of shopping online

7.We learn from the passage that the author’s mother used to lay emphasis on().

A.learning Latin

B.natural development

C.discipline

D.education at school

8. What’s the main idea of the text()？

A.Chinese fashion designer got start in the industry two decades ago

B.China has made a great difference in latest fashion

C.A small number of established Chinese designers have been in business for less than 10 years

D.The Chinese fashion world is constantly growing

9. The country had little interaction with the outside world, which meant all of the following but().

A.no fashion magazines

B.no designer labels

C.no events like China Fashion Week

D.no fashion designers

10.Jim is the only one of the staff members who()to be promoted.

A.are

B.have been

C.is

D.has been

11.The main idea of the passage is that().

A.parents should leave their children alone

B.kids should have more activities at school

C.it’s time to be more strict with our kids

D.parents should always set a good example to their kids

12.Which of the following is NOT true according to Paragraph 2()？

A.It is shown that one area of the brain known as the hippocampus is important in recalling information

B.The process of creating memories has been already understood and it involves three main steps.

C.Scientists believed that neurons first transform. the sensory stimuli into images in our immediate memory

D.Scientists don’t know exactly how the information is transferred from one area of the brain to another

13.Outdoor learning helps students learn in science and arts().

A.Right

B.Wrong

C.Doesn’t say

14.All that can be done().

A.has done

B.has been done

C.have done

D.have been done

15. What should we do in order to communicate with the foreigners in a proper way()？

A.Shake hands with them whenever you meet the foreigners

B.Be familiar with their culture and use it in a correct way

C.Say “Where are you going？” instead of “Hi, have you had your meal？” when meeting on the street

D.Say nothing to them if we meet them

16.By paragraph 2 we can see Istanbul is().

A.a leisure city

B.a busy city

C.a developed city

D.a developing city

17. According to the text, the following sentences are true except().

A.Chinese designers are looking to foreign countries to find retail success

B.China had little interaction with the outside world two decades ago

C.China has gone from a fashion black hole to an industry hub in twenty years

D.the future of Chinese fashion is bright

头维(Tóuwéi，ST8)足阳明胃经

A.derived from

B.came to

C.built up

D.based on

电路如题图5-2(a)所示，问频率ω为多大时，稳态电流i(t)为零？

如题图4-8所示电路中，t=0时开关S闭合，在开关闭合前电路已处于稳态，求电流i(t)。

设是一个实矩阵且ad-bc=1。证明：

(i)如果|trA|＞2，那么存在可逆实矩阵T，使得这里λ∈R且λ≠0，1，-1;

(ii)如果|trA|=2且A≠±1，那么存在可逆实矩阵T，使得

(iii)如果|trA|＜2，则存在可逆实矩阵T及θ∈R，使得