A high-factor sunscreen(防晒霜) is generally expected to protect the skin from harmful rays, but it isn’t. A new research in this week's Nature shows that while factor 50 reduces the number of melanomas(黑瘤) and delays their occurrence, it can't prevent them. Melanomas are the most aggressive skin cancers. You have a higher risk if you have red or blond hair, fair skin, blue or green eyes, or sunburn easily, or if a close relative has had one. Melanomas are more common if you have periodic intense exposure to the sun. Other skin cancers are increasingly likely with long-term exposure.
There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer. A 2011 Australian study of 1,621 people found that people selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed. A second study, comparing 1,167 people with melanomas to 1,101 who didn't have the cancer, found that using sunscreen routinely, alongside other protection such as hats, long sleeves or staying in the shade, did give some protection. This study said other forms of sun protection—not sunscreen—seemed most beneficial. The study relied on people remembering what they had done over each decade of their lives, so it's not entirely reliable. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.
The good news is that a combination of sunscreen and covering up can reduce melanoma rates. So if there is a heat wave this summer, it would be best for us, too, to pull on a shirt, apply some sunscreen and put on a hat.
1.What is people's common expectation of a high-factor sunscreen?
A. It will delay the occurrence of skin cancer.
B. It will protect them from sunburn.
C. It will keep their skin smooth and fair.
D. It will work for people of any skin color.
2.What do we learn from the 2011 Australian study of 1,621 people？
A. Sunscreen should be applied alongside other protection measures.
B. High-risk people benefit the most from the application of sunscreen.
C. Irregular application of sunscreen does women more harm than good.
D. Daily application of sunscreen helps reduce the incidence of melanomas.
3.What does the author suggest to reduce melanoma rates？
A. Using both covering up and sunscreen.
B. Staying in the shade whenever possible.
C. Using covering up instead of sunscreen.
D. Applying the right amount of sunscreen.
Salvador Dali (1904—1989) was one of the most popular of modern artists. The Pompidou Centre in Paris is showing its respect and admiration for the artist and his powerful personality with an exhibition bringing together over 200 paintings, sculptures, drawings and more. Among the works and masterworks on exhibition the visitor will find the best pieces, most importantly The Persistence of Memory. There is also L’Enigme sans Fin from 1938, works on paper, objects, and projects for stage and screen and selected parts from television programmes reflecting the artist’s showman qualities.
The visitor will enter the World of Dali through an egg and is met with the beginning, the world of birth. The exhibition follows a path of time and subject with the visitor exiting through the brain.
The exhibition shows how Dali draws the viewer between two infinities (无限). ＂From the infinity small to the infinity large, contraction and expansion coming in and out of focus: amazing Flemish accuracy and the showy Baroque of old painting that he used in his museum-theatre in Figueras,＂ explains the Pompidou Centre.
The fine selection of the major works was done in close collaboration (合作) with the Museo Nacional Reina Sofia in Madrid, Spain, and with contributions from other institutions like the Salvador Dali Museum in St. Petersburg.
1.Which of the following best describe Dali according to Paragraph 1?
A. Optimistic. B. Productive.
C. Generous. D. Traditional.
2.What is Dali’s The Persistence of Memory considered to be?
A. One of his masterworks. B. A successful screen adaptation.
C. An artistic creation for the stage. D. One of the beat TV programmes.
3.How are the exhibits arranged at the World of Dali?
A. By popularity. B. By importance.
C. By size and shape. D. By time and subject.
4.What does the word ＂contributions＂ in the last paragraph refer to?
A. Artworks. B. Projects.
C. Donations. D. Documents.
听下面一段独白，回答以下小题。
1.Which team has played in every World Cup?
A. Brazil. B. Portugal. C. South Africa.
2.What is the trophy(奖杯) named after?
A. A famous place. B. A special stadium. C. The organizer.
3.How many cities was the 2018 World Cup held in?
A. 32. B. 15. C. 11.
4.Why does the speaker say Japan made history?
A. They won the champion once.
B. They beat a South American team.
C. They made their fourth appearance.
听下面一段较长对话，回答以下小题。
1.What’s Brett just doing?
A. Downloading e-books. B. Reading an e-book. C. Buying an e-book reader.
2.What advantage of the e-book reader does Brett mention?
A. The large storage capacity.
B. The low cost in the long term.
C. The decrease in the use of paper.
3.Why does Fiona refuse to buy an e-book reader?
A. She doesn’t read much.
B. She likes printed books better.
C. She has enough books to read.
4.Where does the conversation take place?
A. In a store. B. In a classroom. C. In a library.
听下面一段较长对话，回答以下小题。
1.Where is the woman’s company?
A. In Japan. B. In Britain. C. In Australia.
2.Why does the man talk to the woman?
A. To look for a travel agent. B. To ask about a tour. C. To seek cooperation.
3.What are the speakers going to do next?
A. Do the market research. B. Go to a restaurant. C. Have a discussion.
听下面一段较长对话，回答以下小题。
1.What does the man plan to do?
A. Raise a dog. B. Set animals free. C. Find a dog trainer.
2.How does the woman sound in the end?
A. Curious. B. Annoyed. C. Excited.
