要使用Autofac、线程和IServiceScopeFactory，您可以按照以下步骤进行操作：

1. 首先，您需要安装Autofac NuGet包。可以在Visual Studio中通过右键单击项目，选择“管理NuGet程序包”来安装。

2. 在您的应用程序中，创建一个Autofac容器。这可以在您的应用程序的启动代码或配置文件中完成。以下是一个简单示例：

var containerBuilder = new ContainerBuilder();
containerBuilder.RegisterType().As();
var container = containerBuilder.Build();

3. 创建一个实现了IServiceScopeFactory接口的类。该接口用于创建一个范围，在该范围内可以解析服务。以下是一个简单示例：

public class MyServiceScopeFactory : IServiceScopeFactory
{
    private readonly ILifetimeScope _lifetimeScope;

    public MyServiceScopeFactory(ILifetimeScope lifetimeScope)
    {
        _lifetimeScope = lifetimeScope;
    }

    public IServiceScope CreateScope()
    {
        var lifetimeScope = _lifetimeScope.BeginLifetimeScope();
        return new AutofacServiceScope(lifetimeScope);
    }
}

public class AutofacServiceScope : IServiceScope
{
    private readonly ILifetimeScope _lifetimeScope;

    public AutofacServiceScope(ILifetimeScope lifetimeScope)
    {
        _lifetimeScope = lifetimeScope;
    }

    public IServiceProvider ServiceProvider => new AutofacServiceProvider(_lifetimeScope);

    public void Dispose()
    {
        _lifetimeScope.Dispose();
    }
}

public class AutofacServiceProvider : IServiceProvider
{
    private readonly ILifetimeScope _lifetimeScope;

    public AutofacServiceProvider(ILifetimeScope lifetimeScope)
    {
        _lifetimeScope = lifetimeScope;
    }

    public object GetService(Type serviceType)
    {
        return _lifetimeScope.Resolve(serviceType);
    }
}

4. 在您的线程中，使用IServiceScopeFactory来创建一个范围，并从范围中解析服务。以下是一个简单示例：

public class MyThread
{
    private readonly IServiceScopeFactory _serviceScopeFactory;

    public MyThread(IServiceScopeFactory serviceScopeFactory)
    {
        _serviceScopeFactory = serviceScopeFactory;
    }

    public void Run()
    {
        using (var scope = _serviceScopeFactory.CreateScope())
        {
            var myService = scope.ServiceProvider.GetService();
            // 使用myService执行操作
        }
    }
}

// 在您的应用程序中创建线程并运行
var myThread = new MyThread(new MyServiceScopeFactory(container));
var thread = new Thread(myThread.Run);
thread.Start();

以上是使用Autofac、线程和IServiceScopeFactory的一个基本示例。您可以根据您的具体需求进行修改和扩展。请记住，在使用Autofac时，确保在不再需要时正确释放资源和范围。