JERUSALEM, FEB. 25 -- Secretary of State George P. Shultz arrived here today at the start of a delicate five-day Middle East peacemaking mission offering unusually conciliatory words to Syria and a warning to Israeli Prime Minister Yitzhak Shamir that "the fundamental touchstone" of the new U.S. approach remains an exchange of land for peace.

Speaking to reporters accompanying him on his plane, Shultz said he would be offering "a package" of proposals aimed at getting talks on a comprehensive peace settlement under way "promptly."

"I think it's essential that we have a process, as we'll propose, that gets into discussions of final-status issues promptly and we have a proposal for that. And, as I've said, I think the fundamental touchstone here is {U.N. Resolution} 242."

The wave of strikes and violence in the occupied West Bank and Gaza Strip that spurred the Shultz peace mission persisted today, as Israeli soldiers shot two Arabs dead and wounded several others. Israeli authorities are bracing for more unrest during Shultz's visit as Palestinian underground leaders have called for further demonstrations to press their demands for an end to the Israeli occupation.

Shultz will present his "package" of peace proposals Friday morning to Shamir and Foreign Minister Shimon Peres in separate meetings with the two feuding Israeli leaders.

Peres has already said he supports the new U.S. initiative. Just how hard Shultz is prepared to press Shamir to drop his deep reservations about the American approach remains to be seen.

Shamir has been resisting the holding of final-status negotiations on the basis of a prior commitment by Israel to giving up the Palestinian territory -- the West Bank and Gaza Strip -- in return for Arab guarantees of peace and security.

Shultz avoided using the term "land for peace," which has stirred the emotions and strong opposition of Shamir's Likud bloc. But he repeatedly referred to Resolution 242, which incorporates the same principle of an exchange of the Israeli-occupied lands for peace.

Shamir has also been resisting any acceleration of the time period for limited autonomy for the occupied territories or the start of negotiations on a final settlement by December, as the U.S. peace plan proposes.

Shultz stressed in an airport arrival statement that he was coming with "a workable proposal" and he called upon Israel's badly divided government "to work for peace."

"The time is right, together, to make decisions of historic proportions," he said.

After a day of intensive discussions with Shamir and Peres, Shultz is scheduled to fly to Damascus Saturday for his first meeting with Syrian President Hafez Assad since May 1983. At that time Shultz was seeking to convince Assad to back a U.S.-brokered Lebanese-Israeli peace accord that the Syrian leader opposed and eventually caused to fail.

Assad remains deeply suspicious of the new U.S. peace initiative and Shultz is clearly eager to gain his backing for, and involvement in, any new negotiating process.

Shultz went out of his way today to reassure Assad that he believes the Israeli-occupied Golan Heights, captured from Syria in 1967, should also be part of any new peace talks.

Resolution 242 "applies to all of the occupied territories and the Golan Heights is among them," he told reporters accompanying him.

Shultz called Syria "an important state" in the region and said he believes Syrian involvement in international terrorism has now "diminished."

"We have had some definite moves we found encouraging," he said, apparently referring to Assad's decision last year to close the Damascus office of Palestinian terrorist Abu Nidal.

Shultz stressed that he was coming to the Middle East with a package that had to be taken as a whole and not regarded as "a kind of cafeteria line" where each party sought to pick and choose the elements that pleased them.

"You've got to look at it as an integrated peace," he said.

The Associated Press reported:

An Army spokesman said soldiers in Jenin, on the West Bank, used tear gas and rubber bullets in a futile attempt to disperse protesters throwing stones and bottles, then fired with live ammunition. He said one Arab was killed and another wounded.

In Nablus, soldiers shot and killed Ghassam Dayeh, 14, and wounded four other Palestinians, one seriously, hospital officials and Arab reporters said.

An Arab reporter and a Nablus doctor said Israeli soldiers stormed Al-Ittihad hospital tonight, breaking furniture and beating people.

"They came in and they beat some of the patients, some of the visitors and some of the staff," the doctor said. "They broke a lot of furniture, glass, tables."

An Army spokesman said the report was being checked.