using DS130-10 Temp/Humid Sensor with Ethernet Shield causes problem

Dear Sir ,
i am working on a project trying to send temp/humid data through ether net ,iam using Ethernet Shield installed Over Arduino Uno ,connected to Temp/Humis Sensor DB130-10 ,every thing was OK till i create Ethernet.begin() function in setup() function it causes the data (temperature value and humidity value) to be nonsense the code below

#include<SHT1x.h>
#include <Ethernet.h>
#include <MySQL_Connection.h>
#include <MySQL_Cursor.h>

#define dataPin 10
#define clockPin 11
SHT1x sht1x(dataPin,clockPin);
//////send signal to Relay
int power=7;
int sig=8;
byte mac_addr[] = { 0xDE, 0xAB, 0xBA, 0xEF, 0xFE, 0xED };

IPAddress server_addr(10,154,91,100);  // IP of the MySQL *server* here
IPAddress ip(10,154,91,70);  // IP of the Arduino
char user[] = "Arduino70";              // MySQL user login username
char password[] = "123";               // MySQL user login password
char query[128];
int counter=0;
EthernetClient client;
int flag;
MySQL_Connection conn((Client *)&client);
int flag;


void setup() 
{
  Serial.begin(9600);
  Ethernet.begin(mac_addr,ip);
  if(conn.connect(server_addr, 3306, user, password)) {
    flag=1;
    Serial.println("Connected");
    delay(1000);
  }
  else  flag=0;
 
    
    //Serial.println("Connection failed.");

   
    
 
}


void loop() 
{
  
 float tempC;
 float humidity;
//read values from sensors 
 tempC = sht1x.readTemperatureC();
 humidity=sht1x.readHumidity();

 
  //Serial.println("Recording data.");
  //sensors.requestTemperatures();
  // float tempC = sensors.getTempCByIndex(0);
    
    
    char TEMP[30];
    Serial.println(tempC);
    Serial.println(humidity);

}

Doesn't the Ethernet shield use pin 10 for it's chip select? And pin 11 is the SPI MOSI pin, also used by the Ethernet shield.

i changed the pins to 6 for data pin and 7 for clock pin the same problem occurred

Sorry, i think it solved the problem thanks a lot

I'm very glad to see you solved your problem. It would be nice if you would take a minute to post a description of the solution you found. That will help anyone else with the same problem who later finds this thread while searching for information. I'm sure they would be very grateful.
Thanks!