职业道德能提高工作效率，是促进社会生产的（）。A、物质动力 B、精神动力 C、道德动

如图，O是一固定的点电荷，虚线a、b、c是该点电荷产生的电场中的三条等势线，正点电荷q仅受电场力的作用沿实线所示的轨迹从a处运动b处，然后又运动到c处。由此可知    

A. O为负电荷    

B. 在整个过程中q的速度先变大后变小    

C. 在整个过程中q的加速度先变大后变小    

D. 在整个过程中，电场力做功为零

请写出相应的化学符号或含义：

(1)天然气的主要成分___________；

(2)2H₂O___________；

(3)两个氮原子____________；

(4)3个钠离子____________。

The woman ______ you met at my home was a teacher of English.  Which of the following is wrong  ?  [ ]

A. whom        

B. that          

C. which          

D. /

Theodor Seuss Geisel was born in Springfield, Massachusetts in 1904. He was famous because of the books he wrote for children. They combine funny words, pictures, and social opinions.

Dr Seuss wrote his first book for children in 1937. It is called And to Think That I Saw It on Mulberry Street. A number of publishers refused to publish it. They said it was too different. A friend finally published it. Soon other successful books followed. Over the years, he wrote more than forty children’s books. They were fun to read. Yet his books sometimes dealt with serious subjects.

By the middle 1940s, Dr Seuss had become one of the best-loved and most successful writers of children’s books. He liked helping children. In 1954, Life magazine published a report about school children who could not read. The report said that many children’s books weren’t interesting. Dr Seuss decided to write books that were interesting and easy to read.

In 1957, Dr Seuss wrote The Cat in the Hat. He used less than 225 words to write the book. This was about the number of words a six-year-old should be able to read.

The story is about a cat who tries to entertain two children on a rainy day while their mother is away from home. The cat is not like normal cats. It talks. The book was an immediate success. It was an interesting story and was easy to read. Children loved it. Their parents loved it, too. Today many adults say it is still one of the stories they like best.

小题1:What’s the best title for this passage?

A．Some of Dr Seuss’ books for children.

B．What are Dr Seuss’s books mainly about?

C．Dr Seuss — a famous writer of children’s books.

D．Why are Dr Seuss’ books different?小题2:What do we know about Dr Seuss’s first book for children?

A．It was Dr Seuss’ worst book.

B．It dealt with a very serious subject.

C．Neither children nor adults like it.

D．Many publishers didn’t accept his book at first.小题3:How did Dr Seuss help children according to Paragraph 3?

A．By asking others to help them in magazines.

B．By writing interesting and simple books.

C．By changing his old books into simpler ones.

D．By giving them books for free.小题4:Adults most probably think that Dr Seuss’ The Cat in the Hat is _________

A．interesting

B．serious

C．difficult

D．boring

Low­Cost Gifts for Mother’s Day

Gift No.1

Offer to be your mother’s health friend.Promise to be there for any and all doctor’s visits whether a disease or a regular medical check­up.Most mothers always say “no need，” but another set of eyes and ears is always a good idea at a doctor’s visit.The best part? This one is free.

Gift No.2

Help your mother organize all of her medical records，which include the test results and medical information.Put them all in one place.Be sure to make a list of all of her medicines and what times she takes them.“Having all this information in one place could end up saving your mother’s life，” Dr.Marie Savard said.

Gift No.3

Enough sleep is connected to general health conditions.“Buy your mother cotton sheets and comfortable pillows to encourage better sleep，”Savard said.“We know that good sleep is very important to our health.”

Gift No.4

Some gift companies such as Presents for Purpose allow you to pay it forward this Mother’s Day by picking gifts in which 10 percent of the price you pay goes to a charity (慈善机构)．Gift givers can choose from a wide variety of useful but inexpensive things －many of which are“green”－and then choose a meaningful charity from a list.When your mother gets the gift，she will be told that she has helped the chosen charity.

小题1:What are you advised to do for your mother at doctor’s visits?

A．Take notes.

B．Be with her.

C．Buy medicine.

D．Give her gifts.小题2:Where can you find a gift idea to improve your mother’s sleep?

A．In Gift No.1.

B．In Gift No.2.

C．In Gift No.3.

D．In Gift No.4.小题3:Buying gifts from Presents for Purpose allows mothers to________.

A．enjoy good sleep

B．be well­organized

C．get extra support

D．give others help