Join the Santa Barbara photographer as he records the undersea beauty of California’s Channel Islands.For the last five years Salas has braved the cold waters and unpredictable currents to create a collection of portraits and seascapes.Not content to simply record the well-known life forms，Salas uses dramatic lighting to uncover a world of never-ending color and texture(纹理)that is inhabited by personalities ranging from the funny to file evil.

Copies of Richard Salas’s book Sea of Light will be for sale at Pacific Collections and there will be a book signing after the lecture.

21.According to the text，Salas________.

A.developed a love for oceans at college

B.had a gift for photography in his childhood

C.couldn’t find the direction of his life

D.recorded the undersea beauty through hard work

22.What can we know about Aquarium Event?

A.Yocan go there in the morning.

B.It will be free for everyone.

C.The tickets can be bought online.

D.Nobody can get Salas’s signature.

23.What is the advertisement about?

A.A course of the tide pools.

B.A photographer’s lecture and book on seas.

C.A photography class in a high schoo1.

D.A journey to California’s Channel Islands.

B

At 65，most people are thinking about getting a senior citizen bus pass.But for Montana woman Ethel MacDonald，who’s now a great-grandmother，that’s when she took up tour cycling.

“I like what I like to do without having to wait for someone else to be ready，”explains the 78-year-old-great-grandmother.The appeal of biking alone on the open road，she says，is“just feeling like I’m my own boss.”

She began tour cycling in 2003，beginning with France’s Atlantic coast.Aside from trips round her native United States，she’s wheeled her way through the Netherlands，Germany，Belgium，Scandinavia and beyond.

Her companion on her Ireland trip is a pink Brompton folding bike，which she’s used on five trips around the us south.She keeps another bike with a friend for her tours of mainland Europe.This seasoned biker reckons she’s traveled at least 10，000 miles.“Usually my trips are close to 1,000 miles in three to four weeks.”MacDonald says.

She uses online travel communities Warm Showers and Couchsurfing to find a place to stay，and hosts guests herself at her home in Missoula，Montana.Warm Showers is exclusively(专门地)for touring cyclists while Couchsurfing is for any travelers wanting to meet new people or open their homes to others.By August 2016，MacDonald estimated that she’d stayed with 165 hosts and hosted around 200 guests of her own.“It saves a pile of money，”she admits.“But far beyond that，the real value is the people yomeet，the inspiration yoget from each other，the memories，the connections.”

She keeps a scrapbook(剪贴簿)filled with photos and notes from all the people she’s met at home and abroad，and keeps in touch with her friends worldwide through Facebook and email.When traveling，she particularly loves the“big cultural exchange”that comes with spending each night with a new host with a different perspective on the world.

For anyone who wants to follow in her footsteps.her advice is simple.“Just do it.”

24.What does the second paragraph mainly tell us?

A.The history of her tour cycling.

B.The reason for her taking up tour cycling.

C.The range of her tour cycling.

D.The equipment for her tour cycling.

25.What nationality is Ethel MacDonald?

A.Belgium. B.France. C.America. D.Germany.

26.Which of the following can replace the underlined word“seasoned”in Paragraph 4?

A.Healthy. B.Wealthy. C.Retired. D.Experienced.

27.How does Ethel MacDonald find a place to stay?

A.Through online travel communities. B.By keeping a scrapbook.

C.Through Facebook and email. D.By writing a letter.

C

A few years ago，Douglas Long was helping to identify some fish caught off the Pacific coast of Central America in 2010.Among the images were those of a mysterious pitch black shark.Interested，he asked the researcher to lend him the preserved specimens(样本)so that his team could study the fish in detail.

When the shark specimens arrived，the researchers immediately suspected that they had came across a new species.To prove，they turned to shark expert Victoria Vasquez for help.On December 21，2015，the team was finally able to prove that their initial guess had been correct.