【解析】

【Para.1】

1. If you think a high-factor sunscreen (防晒霜) keeps you safe from harmful rays, you may be wrong.
2. Research in this week Nature shows that while factor 50 reduces the number of melanomas (黑瘤）and delays their occurrence, it can’t prevent them.
3. Melanomas are the most aggressive skin cancers.
4. 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.
5. Melanomas are more common if you have periodic intense exposure to the sun.
6. Other skin cancers are increasingly likely with long-term exposure.

【Para.2】

1. 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.
2. A 2011 Australian study of 1, 621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed.
3. 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.
4. This study said other forms of sun protection—not sunscreen—seemed most beneficial.
5. The study relied on people remembering what they had done over each decade of their lives, so it’s not entirely reliable.
6. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.

【Para.3】

1. Many people also don’t use sunscreen properly—applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long.
2. It is sunburn that is most worrying—recent research shows five episodes of sunburn in the teenage years increases the risk of all skin cancers.

【Para.4】

1. The good news is that a combination of sunscreen and covering up can reduce melanoma rates, as shown by Australian figures from their slip-slop-slap campaign.
2. So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on (补上) sunscreen and slap on a hat.

46. What is peopled 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.

【Answer】【B】

【Explanation】If you think a high-factor sunscreen (防晒霜) keeps you safe from harmful rays, you may be wrong.

57. What does the research in Nature say about a high-factor sunscreen?

A) It is ineffective in preventing melanomas.

B) It is ineffective in case of intense sunlight.

C) It is ineffective with long-term exposure.

D) It is ineffective for people with fair skin.

【Answer】【A】

【Explanation】Research in this week Nature shows that while factor 50 reduces the number of melanomas (黑瘤）and delays their occurrence, it can’t prevent them.

58. 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.

【Answer】【D】

【Explanation】A 2011 Australian study of 1, 621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed.

59. What does the author say about the second Australian study?

A) It misleads people to rely on sunscreen for protection.

B) It helps people to select the most effective sunscreen.

C) It is not based on direct observation of the subjects.

D) It confirms the results of the first Australian study.

【Answer】【C】

【Explanation】The study relied on people remembering what they had done over each decade of their lives, so it’s not entirely reliable.

60. 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.

【Answer】【A】

【Explanation】So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on (补上) sunscreen and slap on a hat.

【题目】

中国是世界上最古老的文明之一。构成现代世界基础的许多元素都起源于中国。中国现在拥有世界上发展最快的经济，并正经历着一次新的工业革命。中国还启动了雄心勃勃的太空探索计划，其中包括到 2020年建成一个太空站。目前,中国是世界最大的出口国之一，并正在吸引大量外国投资。同时,它也在海外投资数十亿美元。2011年，中国超越日本成为世界第二大经济体。

【解析】

中国是世界上最古老的文明之一。

China is one of the coutries which has the most ancient civilization in the world.

构成现代世界基础的许多元素都起源于中国。

Many elements which makes up of the morden worlds are derived from the world.

中国现在拥有世界上发展最快的经济，并正经历着一次新的工业革命。

The economy of China is developing in the highest speed in the world，and China is experencing a new industiral revolution

中国还启动了雄心勃勃的太空探索计划，其中包括到2020年建成一个太空站。

And China has start up an ambitious space exploring plan , which includes building a space station in 2020

目前,中国是世界最大的出口国之一，并正在吸引大量外国投资。

Nowadays,China has one of the largest export trades in the world, which attracts plenty of foreign investments.

同时,它也在海外投资数十亿美元。

MeanWhile,it has invested millions of dollars overseas.

2011年，中国超越日本成为世界第二大经济体。

China caught up with Japan and became the second richest country in the world in 2011

【参考答案】

中国是世界上最古老的文明之一。构成现代世界基础的许多元素都起源于中国。

China is one of the most ancient civilizations across the world, from which many elements that construct the foundation of the modem world are derived.

中国现在拥有世界上发展最快的经济，并正经历着一次新的工业革命。

Now China has the world’s fastest growing economy and is experiencing a new industrial revolution.

中国还启动了雄心勃勃的太空探索计划，其中包括到 2020年建成一个太空站。

It has also launched an ambitious space exploration plan, including the building of a space station by 2020.

目前,中国是世界最大的出口国之一，并正在吸引大量外国投资。

Currently, being one of the largest exporters in the world, China is attracting massive foreign investment.

同时,它也在海外投资数十亿美元。

Meanwhile, it has invested billions of dollars overseas as well.

2011年，中国超越日本成为世界第二大经济体。  

In 2011, China surpassed Japan, becoming the second largest economic entity in the world.