Fifty-three percent of Americans support making gay marriage legal, a Gallup poll showed on Friday, a marked reversal from just a year ago when an equal majority opposed same-sex matrimony.

上周五发布的一项盖洛普民意调查显示，53%的美国人支持同性婚姻合法化，而在一年之前，有同样多的人对同性婚姻表示反对，形势发生了明显的逆转。

The latest Gallup findings are in line with two earlier national polls this spring that show support for legally recognized gay marriage has, in recent months, gained a newfound majority among Americans.

Gallup said Democrats² and political independents accounted for the entire shift in its survey compared to last year, when only 44 percent of all respondents favored gay marriage, while 53 percent were opposed. The percentage of Republicans favoring same-sex matrimony（结婚，婚礼） held steady at 28 percent.

Same-sex marriage remains³ a highly contested issue in U.S. politics, but homosexual couples have won the right to legally wed¹ in five states -- Massachusetts, Connecticut, Vermont, New Hampshire and Iowa -- and the District of Columbia. Gay couples have faced setbacks elsewhere, and no statewide initiative to legalize gay marriage has ever won a majority vote.

The growing support for gay marriage comes after President Barack Obama signed into law legislation in December to repeal⁴（废除，撤销） the ban on openly gay men and women serving in the military under a 17-year-old law known as "Don't Ask, Don't Tell."

Gallup noted⁵ the policy change, but said it was unclear if that influenced Americans' attitudes about same-sex unions.

"The trend toward marriage equality is undeniable -- and irreversible," Joe Solmonese, president of the gay rights group Human Rights Campaign, said in a statement.

Maggie Gallagher, chairman of the National Organization for Marriage, said the poll shows her fellow opponents of gay matrimony have been "shamed" into silence.

"Polls are becoming very sensitive to wording, and the wording being used in the media are not predicting accurately⁶ what happens at the actual polls when people vote," she said.

In a sign of a generation gap, Gallup found 70 percent of respondents between the ages of 18 and 34 support gay marriage, compared to only 39 percent among those 55 and older.